Field A has higher r than field B, as the former has had more time to establish reliable methods and a more stable consensus within the scientific community.
Let's assume that "r" refers to the replicability of results within a given scientific field. That is, how likely it is that the results of a given study will be replicated in subsequent studies.
Based on the information given, we can infer that field A has a smaller community of scientists and a well-established set of hypotheses and theories. This indicates that the field has had more time to develop and refine its methods and that there is a higher degree of consensus among the scientific community about what research questions are important and how to approach them. These factors suggest that the replicability of results in field A is likely to be higher.
On the other hand, field B is described as being in an exploratory phase, with a larger community of researchers and a more recent influx of attention. This suggests that the field is still in the process of establishing a set of well-defined hypotheses and methods, which may lead to more variability in research results and lower replicability.
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if the steel ball is shot horizontally off the table, how much time would it take the ball to hit the ground for each of the velocity settings of the launcher?
The time for a steel ball to hit the ground when shot horizontally off a table is independent of the initial velocity, and the formula is [tex]d = v_i*t + (1/2)at^2[/tex].
To decide the time it takes for a steel ball to stir things up around town when shot evenly off a table, we can utilize the conditions of movement, explicitly the kinematic condition:
[tex]d = v_i*t + (1/2)at^2[/tex]
where:
d is the distance voyaged
v_i is the underlying speed
an is the speed increase
t is the time
We can expect that the speed increase is because of gravity, which is steady and equivalent to [tex]9.81 m/s^2.[/tex]
Since the ball is shot on a level plane, its underlying vertical speed is zero. Accordingly, we can work on the situation to:
[tex]d = (1/2)at^2[/tex]
Settling for t, we get:
t = sqrt(2*d/a)
To decide the distance voyaged, we can utilize the way that the ball will follow an explanatory direction and will stir things up around town simultaneously it would have taken to fall upward from a similar level. Hence, we can involve the condition for the time it takes for an item to in an upward direction fall:
t = sqrt(2*h/g)
where h is the level of the table and g is the speed increase because of gravity.
Utilizing the trial information, we can decide the level of the table and the distance the ball goes prior to stirring things up around town for every speed setting of the launcher. Then, we can work out the time it takes for the ball to stir things up around town involving the condition for t.
The time it takes for the ball to stir things up around town will be the equivalent no matter what the speed setting of the launcher, as long as the ball is shot evenly with a similar starting level. This is on the grounds that the underlying speed in the level bearing doesn't influence the time it takes for the ball to upward fall.
This outcome is steady with the way that the time it takes for an item to fall upward just relies upon the level and speed increase because of gravity. Hence, failing upward from the table top to the floor beneath would bring about a similar time it takes for the ball to raise a ruckus around town when shot evenly off the table.
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The complete question is:
If the steel ball is shot horizontally off the table, how much time would it take the ball to hit the ground for each of the velocity settings of the launcher? Explain your answer using the equations of motion and your experimental data. How does this relate to the ball being dropped vertically from the table top to the floor below.
what is an object’s velocity if it’s speed is 30 m/s
The velocity of an object will be the same as 30 m/s speed if there is a one-dimensional motion.
What is velocity?Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is traveling along a path.
The concept of velocity and what we typically refer to as speed are nearly identical in one dimension. The idea of speed that we typically employ in reference to a moving vehicle aligns exactly with the measurement of an object's speed (relative to some fixed reference frame).
Therefore, if an object moves in one dimension, its velocity will be equal to 30 m/s speed.
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when substances change state there is no change in mass. so for physical changes are generally easy to reverse though the end product may not always look exactly the same as the starting material. When a physical change occurs, the arrangement of particles within the substance may change, but the atoms in the molecules remain bonded together.
When substances change state, the molecules remain the same and there is no change in mass. This is because the molecules themselves do not break apart or form new chemical bonds.
What is molecules ?Molecules are particles made up of two or more atoms that are bound together. They are the smallest units of matter that can still retain the properties of the substance they are part of. For example, water is made up of two hydrogen atoms and one oxygen atom, which form a molecule. Molecules vary in size and complexity; some molecules, such as proteins, are made up of hundreds of atoms. Molecules are held together by chemical bonds, which are forces of attraction between the atoms. These bonds can be of several different types, such as covalent, ionic, and hydrogen bonds. Molecules can interact with each other and with other substances, such as solids, liquids, and gases, to create new substances with different properties. Understanding the behavior of molecules is essential to the study of chemistry, biology, and other sciences.
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a large truck tire is inflated to a gauge pressure of 78 psi. the total area of one sidewall of the tire is 1,270 in2. what is the net outward force (in lb) on the sidewall because of the air pressure? (enter the magnitude.)
A student measures the mass of a solution before and after a chemical reaction takes place. In both cases the students measures the mass to be 50.25 g on an electronic balance with an uncertainty of 0.05 g. The student realizes that the ranges of uncertainty for each measurement overlap exactly. Which claim can the student make?
A. The mass definitely stayed the same because the measurement of 50.25 g was obtained each time.
B. The mass definitely stayed the same because the ranges of uncertainty overlap exactly.
C. We can’t know for sure whether or not the mass changed, but it seems reasonable to claim that the mass did not change, given that the ranges of uncertainty overlap.
The correct claim the student can make is: B. The mass definitely stayed the same because the ranges of uncertainty overlap exactly.
What is mass?A measurement of the quantity of matter in an item or system, mass is a basic physical characteristic of matter. Due to its scalar nature, it has simply magnitude and no direction. One of the most fundamental ideas in physics is mass, which is also connected to other key ideas like weight, force, and energy.
The kilogram is the SI unit of mass (kg). There are several ways to measure mass, but the most popular one is with a balance or a scale. A balance assesses an object's mass in relation to a recognized standard. Contrarily, a scale employs a force to overcome an object's gravitational pull before measuring the result.
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if a researcher measures two individuals on an ordinal scale, it is impossible to determine which individual has the larger score. (True or False)
The statement "If a researcher measures two individuals on an ordinal scale, it is possible to determine which individual has the larger score" is false.
An ordinal scale is a type of measurement scale that allows for the ranking of individuals or objects based on a specific characteristic or trait. For example, if a researcher is measuring the level of pain experienced by two individuals, they may use an ordinal scale with categories such as "no pain," "mild pain," "moderate pain," and "severe pain." The individual who falls into the "severe pain" category would have a larger score than the individual in the "mild pain" category. Therefore, it is possible to determine which individual has the larger score when using an ordinal scale.
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now suppose you turned the dac on to charge the capacitor, then unplugged the capacitor from the dac (while the dac was still on). what happens to the voltage across the capacitor after unplugging it from the dac?
The charge will not change if the capacitor is not connected to the battery. When the plates of a capacitor are shifted further apart, the capacitance Cd1 drops.
What happens to the voltage across the capacitor?The energy stored by capacitor U(=2Cq) grows when the battery is disconnected because the charge on the capacitor stays constant.
The capacitor, which we were informed was entirely depleted, has zero voltage across it when the switch is first closed, making it appear as though there is a short circuit.
The capacitor will eventually operate as an open circuit because the voltage of the capacitor will eventually equal the voltage of the battery.
Therefore, after a capacitor is simply connected across a battery, its voltage will be the same as the battery terminal voltage when the battery is disconnected, and it will have an energy reserve equal to capacitance times voltage divided by two.
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A mineral, as geologists understand the term, is a naturally occurring solid substance with a definable chemical composition and:a fixed crystalline structure
Answer:
Explanation:
Yes, that is correct! A mineral, as defined by geologists, is a naturally occurring solid substance with a definable chemical composition and a fixed crystalline structure. This definition is based on the idea that minerals have a specific chemical composition and crystal structure that can be used to identify and classify them. The crystalline structure of minerals gives them unique physical properties, such as hardness, luster, and cleavage, that can be used to distinguish them from other substances.
at the instant the traffic light turns green, an automobile starts with a constant acceleration of 2.70 m/s2. at the same instant a truck, traveling with a constant speed of 11.30 m/s, overtakes and passes the automobile. (a) how far beyond the traffic signal will the automobile overtake the truck?
The traffic signal will the automobile overtake the truck far away beyond the traffic signal is 2.7 m.
The difference between haste and relative haste is that haste is measured with respect to a reference point which is relative to a different point. While relative haste is measured in a frame where an object is either at rest or moving with respect to the absolute frame.
The relative haste is defined as the haste of an object with respect to another bystander.
It's the time rate of change of relative position of one object with respect to another object.
W.r.t automobile,
u = ut - ua at t=0
= 11.3 - 0
= 11.3 m/s
d = dt - da
= 0 - 2.7 = -2.7m/s²
So, s = ut + 1/2at²
= 11.3(t) - 2.7/2 at²
0 = 11.3t - 2.7/2 t²
= 11.3t - 1.35 t²
11.3t = 1.35t²
t = 11.3/1.35
t = 8.37 sec
They will overtake again at 8.37 s
v = 11.3 m/s and st = vx1 = 11.3 m
both truck and car would travelled 11.3 m
Speed of automobile,
v = u + at
= 0 + 2.7(1)
= 2.7 m/s
Speed of the automobile is : 2.7 m/s
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When a surface is experiencing friction with another surface, how are the particles affected? Address both movement and spacing in your answer.
When two surfaces experience friction with each other, the particles on the surfaces are affected in two ways: movement and spacing. The particles on the surfaces move against each other, creating a force that resists the motion of the two surfaces. This force is known as friction. At the same time, the particles on the surfaces are also pushed apart, creating a small gap between the two surfaces. This gap is known as the coefficient of friction, and it affects the amount of friction that is experienced between the two surfaces.
Why does an iceberg have more total internal energy than a pan of boiling water, even though the iceberg has a lower temperature? In your answer, use the words “potential,” “kinetic,” and “thermal.”
An iceberg has more total internal energy than a pan of boiling water due to its greater potential energy and the greater amount of thermal energy contained in its larger mass.
What is total internal energy?
Total internal energy is the sum of the kinetic energy of the molecules in a system and the potential energy of their interactions. It is a measure of the energy contained within a system and is typically expressed in joules.
The total internal energy of an object is the sum of its potential and kinetic energies, as well as any thermal energy it contains. Even though the temperature of an iceberg is lower than that of a pan of boiling water, an iceberg has more total internal energy for two reasons: potential energy and the amount of thermal energy. Potential energy is energy that is stored in an object due to its position relative to other objects. An iceberg floating in water is at a higher position than the water in the pan, so it has more gravitational potential energy. Thermal energy is the energy that is associated with the random motion of particles in a system. The internal energy of a system is proportional to the temperature, but it also depends on the number of particles in the system, which is referred to as its mass. Since an iceberg is much larger than a pan of boiling water, it contains more particles and therefore has more thermal energy.
Therefore, greater potential energy and the greater amount of thermal energy contained in its larger mass.
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Why do you never see the Moon next to, say, Polaris?
The brightness of the Moon can make it difficult to see fainter stars in its vicinity, further decreasing the likelihood of seeing it near Polaris in the night sky.
The Earth revolves on its axis as the Moon travels around it. The location of celestial objects in the sky seems to vary over time because to the Earth's rotation. Since it sits practically immediately above the North Pole of the Earth, Polaris, also known as the North Star, seems to remain motionless in the sky while all other stars appear to revolve around it.
The Moon, on the other hand, does one full circuit of the Earth every 27.3 days, traveling a distance of around 384,400 kilometers (238,855 miles) on average. Its location in relation to the stars, including Polaris, shifts as it circles.
The Moon will occasionally seem near to Polaris in the night sky, while other times it will look far away due to the Earth's rotation and the Moon's orbit. It is quite uncommon to observe the Moon and Polaris in close proximity to one another since their positions in relation to one another are continually shifting. Further reducing the chances of spotting the Moon close to Polaris in the night sky is the brightness of the Moon, which can make it challenging to discern nearby fainter stars.
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An object of mass 75 Kg is taken to moon, what will be its weight?(freefall acceleration on moon =1.6 m/s2)
Answer:
120 Newtons
Explanation:
Weight of an object is given by the relation
W = mg
where
W = weight
m = mass of the object
g = gravitational force or freefall acceleration
Given the numbers:
m = 75 kg
g = 1.6 m/s²
W = 75 x 16 = 120 kg m/s² or 120 Newtons
Pleasee help me on these
answers are: 1) 239 F, 2) 7.222C, 3) 299.15K , 4) 98.6 F, 5) -205.1C
Show the formulas along with calculation of temperature conversions?Formulas for converting temperature values between different units are referred to as temperature conversions. There are numerous ways to convert temperatures. The most popular units of measurement among these are Kelvin, Celsius, and Fahrenheit. The Kelvin scale states that water has a freezing point of 273.15K and a boiling point of 373.15K. Water has a freezing point of 32°F and a boiling point of 212°F on the Fahrenheit scale. The freezing point of water is 0°C, and the boiling point is 100°C, according to the Celsius system.
(115°C × 9/5) + 32 = 239°F
(45°F − 32) × 5/9 = 7.222°C
26°C + 273.15 = 299.15K
(37°C × 9/5) + 32 = 98.6°F
68K − 273.15 = -205.1°C
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What 2 factors affect the gravitational potential energy of an object?
Gravitational potential energy of an object is affected by mass, gravity, and height. Energy is directly proportional to all three variables.
An thing inherently possesses a certain quantity of energy. The amount of energy an item possesses when a force coming from a distance, like as gravity, is acting on it and an object is not supporting it is known as the Gravitational Potential Energy. This energy can be utilised later to move an item since it can be stored and utilised at a later time.
We can claim that the following things affect the gravitational potential energy: weight of the thing. Size of the thing.
The energy that a large object has in relation to another large object due to gravity is known as gravitational potential energy.
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What is the acceleration of an object moving in a circular motion at a constant speed?
The velocity of an item traveling in a circle at a constant speed is changing, therefore the object is still accelerating.
Since its velocity is changing, an object traveling in a circle at a constant speed is still accelerating. Particularly, even if its speed doesn't change, the direction of motion does. The item is being pulled towards the center of the circular route by a centripetal force, which is the cause of the direction shift.
The acceleration of an object moving in a circular motion at a constant speed can be calculated using the following formula:
a = [tex]v^2 / r[/tex]
where
a is the centripetal acceleration,
v is the speed of the object, and
r is the radius of the circular path.
The velocity of an item traveling in a circle at a constant speed is changing, therefore the object is still accelerating.
In particular, even while its speed is constant, its direction of motion is continually changing. A centripetal force, which is dragging the item towards the centre of the circular route, is to blame for this shift in direction.
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A system is at rest. The mass of each object is shown. Neglecting the mass of the strings, how many forces are acting on the 6 kg block?
string 1
6kg
string 2
9kg
A. There is 1 force.
B. There are 2 forces.
C. There are 3 forces.
D. There are 4 forces.
A system is at rest. The mass of each object is shown. Neglecting the mass of the strings, the number of forces that are acting on the 6 kg block is option B. There are 2 forces
How did we arrive at the assertion?The system is at rest, so the forces acting on the 6 kg block must be balanced. Since the only forces acting on the block are the tensions in the strings, there must be two forces acting on the block. The correct answer is B. There are 2 forces.
Therefore, the mass of each object is shown. Neglecting the mass of the strings, the number of forces that are acting on the 6 kg block is option B. There are 2 forces.
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Why is it difficult to make models of objects in the solar system?
Creating models of objects in the solar system is challenging due to the large distances, complex motions, interactions with other objects, and unknown properties of these objects.
The vast distances between the objects in the solar system can make it difficult to obtain accurate measurements of their positions and movements. The complex motions of the objects, including gravitational interactions with other objects, make it challenging to predict their positions and trajectories over long periods of time.
Additionally, some objects have properties that are not well understood, such as their composition and internal structure, making it difficult to model their movements accurately.
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Only second question. Thanks
You kick a soccer ball with an initial vertical velocity of 14 m/s and a horizontal velocity of 18 m/s. What is the initial resultant velocity of the soccer ball?
Answer:
Explanation:
ij42fom2k jjnjmiok3ofnf jnk jn kj j vjk v
if the other charges are fixed in place and charge 2q is allowed to move, what will be the kinetic energy k2q of charge 2q when it is very far from the other charges? express your answer in terms of q , d , and appropriate constants.
K2q = 7.76kg^3/d will be the kinetic energy k2q of charge 2q when it is very far from the other charges.
At the corner of the square, the potential energy of interaction of other charges with the charge 2q is given by U_2q
So
U2q.i = k2qq1 / d+k2qq1 / d+k2qq1 = 7.746kg^3 / d
Also, since v_B also
The initial energy of the system is given by;
E_i = U2qi + k2qi =7.76*kg^2/d
Since U2qf=0, the final energy of the system is obtained by
Ef = U2qf + K2qf =k2qf
From the law of conservation of energy, Ei = Ef
Therefore, K2q = 7.76kg^3/d
Kinetic energy is the electricity an item possesses with the aid of distinctive feature of its movement. it is described because the work required to accelerate an object from relaxation to its present day speed. The faster an object moves, the greater its kinetic energy.Kinetic energy is a fundamental concept in physics, and it has important applications in many fields, including engineering, sports, and transportation.
It is also a crucial concept in understanding the behavior of particles and molecules in chemistry and biology.The formula for calculating kinetic energy is 1/2 * mass * velocity^2, where mass is the mass of the object and velocity is its speed in a given direction. This equation shows that the amount of kinetic energy an object has is proportional to its mass and the square of its velocity.
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a toy gun mounted horizontally shoots a dart at a target. it hits the target 7.5 m away. the dart hit 0.76 m below the target. what is the muzzle velocity of the dart gun? please express your answer to three significant figures.
The muzzle velocity of the dart gun is 18.4 m/s. To solve this problem, we can use the equations of motion for projectile motion. We know that the dart travels a horizontal distance of 7.5 m and a vertical distance of 0.76 m.
We also know that the acceleration in the horizontal direction is zero, and the acceleration in the vertical direction is equal to the acceleration due to gravity, which is approximately 9.81 m/s^2. Let's first find the time it takes for the dart to travel 7.5 m horizontally. We can use the equation:
Distance = velocity x time
Rearranging this equation, we get: time = distance/velocity
Substituting the values we know, we get:
time = 7.5 m / velocity
Next, let's find the initial vertical velocity of the dart. We can use the equation: vertical distance = initial vertical velocity x time - 0.5 x acceleration x time^2
Since the dart is initially fired horizontally, its initial vertical velocity is zero. We can rearrange the above equation to solve for the initial velocity:m initial vertical velocity = vertical distance/time + 0.5 x acceleration x time
Substituting the values we know, we get: initial vertical velocity = 0.76 m / time + 0.5 x 9.81 m/s^2 x time; Now we can substitute the expression for the time we found earlier: initial vertical velocity = 0.76 m / (7.5 m / velocity) + 0.5 x 9.81 m/s^2 x (7.5 m / velocity)
Simplifying, we get:
initial vertical velocity = 0.10133 x velocity + 3.66375
Finally, we can use the Pythagorean theorem to find the muzzle velocity:
muzzle velocity = sqrt(velocity^2 + initial vertical velocity^2)
Substituting the expression we found for initial vertical velocity, we get:
muzzle velocity = sqrt(velocity^2 + (0.10133 x velocity + 3.66375)^2)
Using this method, I found that the muzzle velocity of the dart gun is approximately 18.4 m/s. Therefore, the answer to the problem is:
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According to the universal law of gravitation, the force due to gravity is directly proportional to the product of the source and test masses and inversely proportional to the square of the separation between the centers of the source and test masses. True/False?
True, The universal law of gravitation, formulated by Sir Isaac Newton, states that the force of gravitational attraction between two objects is directly proportional to the product of their masses.
What is Universal Law of Gravitaion?
The Universal Law of Gravitaion is a fundamental law of physics that describes the force of gravitational attraction between two objects with mass. It was first formulated by Sir Isaac Newton in the 17th century and is still widely used today in various areas of science and engineering.
The law states that every object in the universe attracts every other object with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. This means that the force of attraction between two objects increases as their masses increase, and decreases as the distance between them increases.
Mathematically, the Universal Law of Gravitation can be expressed as:
F = G * (m1 * m2) / r^2
where F is the force of gravitational attraction between two objects, m1 and m2 are the masses of the two objects, r is the distance between their centers, and G is the gravitational constant. The value of G is a constant that is the same for all objects in the universe, and its value has been experimentally determined to be approximately 6.67 x 10^-11 N*m^2/kg^2.
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which of these can help determine air pressure? select the two correct answers.a. wind speed of the air
b. moisture in the air
c. temperature of the air
d. cloud patterns in the air
The two factors that can help determine air pressure are the temperature of the air and the cloud patterns in the air that are in options c and d, because wind speed and moisture content of the air are not direct measures of air pressure.
What is the air pressure?It depends upon the temperature, as when the temperature increases, air molecules gain energy and move faster, leading to a decrease in air pressure, and as the temperature decreases, there is an increase in air pressure. Some clouds are present at low air pressure, while others are at high air pressure.
Hence, the two factors that can help determine air pressure are the temperature of the air and the cloud patterns in the air that are in options c and d, because wind speed and moisture content of the air are not direct measures of air pressure.
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a thin cylindrical shell and a solid cylinder have the same mass and radius. the two are released side by side and roll down, without slipping, from the top of an inclined plane that is 1.2 m above the ground. find the final linear velocity of the thin cylindrical shell.the acceleration of gravity is 9.8 m/s 2 . answer in units of m/s.when the first object reaches the bottom, what is the height above the ground of the other object? answer in units of m.
Out of thin cylindrical shell and a solid cylinder ,The solid cylinder will reach a height of 1.86 m above the ground when it reaches the bottom.
For a rolling object without slipping, the final velocity can be found using the conservation of energy. The potential energy of the object at the top of the incline is converted to kinetic energy as it rolls down.
The potential energy of the two objects at the top of the incline is:
PE = mgh
where m is the mass, g is the acceleration due to gravity, and h is the height of the incline.
Since the two objects have the same mass and radius, their moments of inertia are different. The moment of inertia of a thin cylindrical shell is I = MR², where M is the mass and R is the radius. The moment of inertia of a solid cylinder is I = (1/2)MR².
The kinetic energy of a rolling object is:
KE = (1/2)mv ²+ (1/2)Iω²
where v is the linear velocity, ω is the angular velocity, and I is the moment of inertia.
For a rolling object without slipping, the linear velocity is related to the angular velocity by:
v = Rω
where R is the radius of the object.
Since the two objects have the same mass and radius, their moment of inertia ratio is 2:1, and the solid cylinder has a greater moment of inertia. Therefore, the solid cylinder will roll down the incline more slowly than the thin cylindrical shell, and it will reach a lower height.
We can use the conservation of energy to find the final velocity of the thin cylindrical shell:
mgh = (1/2)mv² + (1/2)Iω²
Substituting I = MR² for the thin cylindrical shell, and I = (1/2)MR² for the solid cylinder, and ω = v/R, we get:
mgh = (1/2)mv² + (1/2)MR²(v/R)²
Simplifying and solving for v, we get:
v = √(2gh/(1 + MR²/mR^²)
Plugging in the values, we get:
v = √(2 * 9.8 m/s² * 1.2 m / (1 + 0.753 kg/0.753 kg * 0.5))
= 6.03 m/s (to two significant figures)
Therefore, the final linear velocity of the thin cylindrical shell is 6.03 m/s.
When the thin cylindrical shell reaches the bottom, its potential energy is converted to kinetic energy. The kinetic energy of the solid cylinder at the bottom must be the same as the kinetic energy of the thin cylindrical shell. Therefore, we can use the conservation of energy to find the height of the solid cylinder at the bottom:
(1/2)mv^2 = mgh'
Solving for h', we get:
h' = (1/2)v²/g
Plugging in the values, we get:
h' = (1/2) * (6.03 m/s)² / 9.8 m/s²
= 1.86 m (to two significant figures)
Therefore, the solid cylinder will reach a height of 1.86 m above the ground when it reaches the bottom.
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if the field changes in value from -0.100 t to 0.150 t in an interval of 0.500 s, what is the magnitude of the average voltage induced in the coil?
The magnitude of the average voltage induced in the coil if the field changes in value from -0.100 t to 0.150 t in an interval of 0.500 s is 125000 V.
The "pressure" that pushes electricity is referred to as voltage. A voltage is measured in volts (V), and greater voltages result in more electricity flowing to an electronic equipment. Yet, electronic gadgets must work within a range of voltages since too much voltage might harm their circuitry.
Change in magnetic field = 0.150 - (- 0.1)
= 0.250 T
Area of coil = 500 m²
Induced emf = N[ change in flux]/time
flux = Area x magnetic field
Initial flux = 500 x 0.150 = 75 = 75 Tm²
Final flux = 500 x (-1.00) = 50 = - 50 Tm²
Change in flux = 75 + 50 = 125
Induced emf = 500(125) / 0.5
= 62500 / 0.5
= 125000 V
The average voltage is 125000 V
In contrast, a voltage that is too low can also be problematic since it prevents circuits from functioning and renders the devices that are constructed around them ineffective. To handle electronic devices properly and pinpoint the root causes of troubles when they arise, one must have a working knowledge of voltage and how to resolve related problems.
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a ball is thrown upward with an initial vertical speed of 46 m/s. the ball rises and falls to land on a 30 m tall tower. what speed does the ball have just before it lands on the tower? ignore air resistance.
The speed of the ball just before its land on the 30 tall Tower is 39.08m/s.
The ball is thrown vertically upward with an initial vertical speed of 46 m/s the ball rises and falls to land on a 30 m tall Tower.
First letters find out the maximum height of the ball by using the formula,
H = u²/2g
Where, H is height, u is initial speed, g is acceleration due to gravity.
Putting values,
H = 46×46/(2×9.8)
H = 107.95 m.
Now when the ball reaches the maximum height and lands on the 30 metre tall Tower it covers a distance d of 77.95 m.
Now, using this distance we can find the speed of the ball just before it lands on the tower by using the formula,
V = √(2gd)
V = √(2×9.8×77.95)
V = √(1527.82)
V = 39.08m/s.
So, the speed of the ball just before it lands on the tower is 39.08m/s.
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Phases and Energy
Phase changes must either ______. or _______ energy.
Someone please help its a fill in the blank!
Phase shifts must either emit or absorb energy. When the system receives enough energy or loses enough energy, these changes take place.
What are the energy phase changes?While freezing, condensation, and deposition are exothermic processes, fusion, vaporization, and sublimation are endothermic processes. Phase changes, also known as phase transitions, include changes in state.
What two energy systems are involved in phase change?Form of latent heat when energy is transferred from solid to liquid during phase change. The transition from solid to liquid is endothermic, which means that the system absorbs energy. When the direction of the change goes from a liquid to a solid, the shift is exothermic (the system releases energy).
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an object whose center of gravity is below its point of support, will be in neutral equilibrium. true false
An object whose center of gravity is below its point of support will be in neutral equilibrium is a False Statement.
An object whose center of gravity is below its point of support will be in stable equilibrium, not neutral equilibrium. In stable equilibrium, if the object is displaced slightly from its equilibrium position, it will tend to return to that position. Neutral equilibrium occurs when the center of gravity is directly above the point of support, in which case the object will remain in its displaced position if moved slightly. Finally, unstable equilibrium occurs when the center of gravity is above the point of support, in which case the object will tend to fall over if displaced slightly.
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If the electric field between the plates of a given air-filled capacitor is weakened by removing charge from the plates, the capacitance of that capacitor A) decreases B) increases. C) does not change. D) It cannot be determined from the information given.
If the electric field between the plates of a given air-filled capacitor is weakened by removing charge from the plates, the capacitance of that capacitor does not change.
Capacitance is the amount of charge that can be stored at a given voltage by an electrical component called a capacitor.
C=Q/V
The unit of capacitance is the Farad (F)
C = εA/d,
C is capacitance; ε is permittivity, a term for how well dielectric material stores an electric field; A is the parallel plate area; and d is the distance between the two conductive plates.
electric field between two parallel conducting plates depends on the electric potential or voltage of the two plates and the distance between the two plates. So, the electric field E=Vd E = V d where d is the distance between the two charged plates.
The force on the charge is the same no matter where the charge is located between the plates. This is because the electric field is uniform between the plates.
If the electric field between the plates of a given air-filled capacitor is weakened by removing charge from the plates, the capacitance of that capacitor does not change.
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