An object that is initially at rest breaks up into two pieces of unequal masses when a spring-loaded device is released. If you compare the kinetic energy of the larger mass to that of the smaller mass immediately after they separate, which of the following statements is correct?
A) The kinetic energy of the larger mass is greater. B) The kinetic energy of the smaller mass is greater. C) The kinetic energies of the two masses are equal. D) The total kinetic energy is zero J.

Answers

Answer 1

"The kinetic energy of the bigger mass is higher," is the right statement.

Among the below-mentioned statement, the statement given in option (A) is correct.

The initial potential energy of the system is transferred to kinetic energy when a spring-loaded mechanism is released and an item breaks into two pieces of unequal mass. The total beginning potential energy must match the whole final kinetic energy, according to the rule of conservation of energy.

Because both masses' initial kinetic energy is zero, the end kinetic energy will be split in proportion to their masses.

As a result, the bigger mass has more kinetic energy than the smaller mass.

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Related Questions

10. A tube in which the
cross-sectional area gradually decreases to a minimum diameter in its center section is called a “___”

Answers

A tube in which the cross-sectional area gradually decreases to a minimum diameter in its center section is called a “_converging duct__”

What is a tube?

Tube is a pipe shape, a cylinder with a hollow space inside. Tubes are used in applications such as medical devices that require a precise outside diameter. The outside diameter is important since it will indicate how much it can hold as a stability factor.

Therefore, Tube is a cylindrical, hollow piece with a round or oval profile, made of plastic, paperboard, aluminum, or other metal.

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2. transportation in the u.s. emitted 1.8 billion tons of greenhouse ga which of the following was responsible for 7.5 percent of those emissions?

Answers

7.5 percent of the green house gases emission resulted from industrial, agricultural, and waste management processes.

The greenhouse gas emissions of the transportation industry account for around 28 percent of all emissions in the U.S., making it the largest contributor to U.S. greenhouse gas emissions. In 2021 this equated to 1.8 billion tons of carbon dioxide being released into the atmosphere.

About 92 percent (or 4.6 BMT) of U.S. CO2 emissions stemmed from burning fossil fuels to produce energy. The remaining 7.5 percent of those emissions were unrelated to energy production; they resulted from industrial, agricultural, and waste management processes.

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A useful and easy-to-remember approximate value for the number of seconds in a year is π x 107. Determine the percent error in this apporximate value. (There are 365.24 days in one year.)"
I tried to convert 365.24 days into seconds and got 365.24daysx24hrsx60minv60s= 3.1556736x107
then to solve for percent error you take ((Π x 〖10〗^7 ) / (3.1556736 x 〖10〗^7 ) ) x100%=99.55%, but the book gives the answer .45%
What am I missing?

Answers

The percent error in approximating the number of seconds in a year is 0.45%.

Percent error is the difference between the experimental value and actual value and measures the accuracy of the result found.

The percent error is given by the formula,

Percent error = {(actual value- experimental value) / actual value} ×100

Here, the experimental value is π×10⁷.

And the actual value is, (365.24)(24)(60)(60) = 3.155×10⁷.

Substituting the values in the formula,

Percent error = {(3.155×10⁷ - π×10⁷) / 3.155×10⁷} ×100

Percent error = (0.015 / 3.155) ×100

Percent error =0.0045 ×100

Percent error = 0.45%

The percent error is 45%.

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n
n
What is the mass of an
acceleration.
produces
object if a forc
of
4.0m/s²
of 34 N
force of

Answers

The mass of the object is 8.5 kg.

What is Newton's Second Law of Motion?

The equation used in this question is Newton's Second Law of Motion, Newton's Second Law of Motion states that force equals mass times acceleration. This means that the more mass an object has, the more force is needed to move it, and the greater the acceleration, the more force is needed to move it. (F = ma).

The steps for calculating mass are as follows

1. The formula to calculate the mass of an object from a given force and acceleration is mass = force/acceleration.

2. Therefore, to calculate the mass of the object, divide the given force of 34 N by the given acceleration of 4.0 m/s².

3. This gives a mass of 8.5 kg.

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The velocity distribution for laminar flow between stationary parallel plates is given by :
(u/u_max) = 1 - (2y/h)^2
where "h" is the distance separating the plates and the origin is halfway between the plates. Consider the flow of water at 15 degrees Celsius with a maximum speed of 0.05 m/sec and h= 5 mm. Calculate the FORCE on a 0.3 m^2 section of the lower plate, and give its direction

Answers

The value of the force is 6.012 × 10⁻⁴ N and direction is downward, as it is the force exerted by the upper plate on the lower plate.

What is force?

Force is a physical phenomenon that is the result of interactions between objects, and is defined as a push or pull on an object. It can be created by various forms of energy, such as electrical, mechanical, thermal, or magnetic.

The force on the lower plate is equal to the shear stress on the plate times the area of the plate. The shear stress is determined using the velocity profile, which in this case is given by (u / u_max ) = 1 - ( 2y/h )^2.
Plugging in the values for the maximum speed, distance between the plates, and temperature, we can calculate the dynamic viscosity of water as η = 0.001002 Pa * s.
The shear stress is then calculated as τ = η*(du/d y). Taking the derivative of the velocity profile and plugging in the values for the maximum speed and distance between the plates, we get τ = η * ( 4u_max/h ).
Finally, the force on the 0.3 m^2 section of the lower plate is calculated as F = τ*A, where A is the area of the plate. Plugging in the values for the shear stress and plate area, we get F = (0.001002 Pa * s ) * (4 * 0.05 m/s/5 mm) * (0.3 m^2)

= 0.0006012 N.

= 6.012 × 10⁻⁴ N


The direction of the force is downward, as it is the force exerted by the upper plate on the lower plate.

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When Jim lifts a (previously stationary) bowling ball using a constant 72 N (↑) Force, it rises 1.0 m in 3.0 s.

a) compute the ball’s acceleration.

Answers

Explanation:

By using the formula :

[tex]s = ut + \frac{1}{2} at {}^{2} [/tex]

where;

S = distance

u = initial velocity

t = time taken

a = acceleration

Plug in all the information we have,

[tex]1 = 0 + \frac{1}{2} a(3) {}^{2} [/tex]

therefore :

[tex]a = \frac{2}{9} ms {}^{ - 2} [/tex]

A steel ring with a hole having area of 3.99 cm² is to be placed on an aluminum rod with cross- sectional area of 4.00 cm². Both rod and ring are initially at a temperature of 35.0 °C. At what common temperature can the steel ring be slipped onto one end of the aluminum rod? ​

Answers

The common temperature at which the steel ring can be slipped onto one end of the aluminum rod is 33.0°C. This is because the expansion of both materials due to the temperature rise need to be balanced for the steel ring to fit on the aluminum rod. The equation for this is A1T2 = A2T1, where A1 and A2 are the areas of the steel ring's hole and the aluminum rod, respectively, and T1 and T2 are the initial and the common temperatures. Solving this equation yields T2 = 33.0°C.

a lead ball is dropped into a lake from a diving board 5.30 m above the water. after entering the water, it sinks to the bottom with a constant velocity equal to the velocity with which it hit the water. the ball reaches the bottom 3.30 s after it is released.How deep is the lake?

Answers

The lake is 14.76 meters deep.

The velocity of the lead ball just before it hits the water can be calculated using the equation of motion for a freely falling object:

v = v0 + a*t,

where v is the final velocity,

v0 is the initial velocity (0 m/s, since the ball was dropped),

a is the acceleration due to gravity (-9.8 m/s^2),

and t is the time it takes for the ball to reach the water (5.30 m / 9.8 m/s^2 = 0.54 s).

v = v0 + a*t

= 0 + (-9.8 m/s^2) * 0.54 s

= -5.27 m/s.

The depth of the lake can be calculated using the equation:

d = v0*t + (1/2)at^2,

where d is the depth of the lake,

t is the time it takes for the ball to reach the bottom after hitting the water (3.30 s - 0.54 s = 2.76 s),

and a is the acceleration due to gravity (-9.8 m/s^2).

d = v0*t + (1/2)at^2

= (-5.27 m/s) * 2.76 s + (1/2) * (-9.8 m/s^2) * 2.76 s^2

= -14.76 m.

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Which statement correctly describes a property of sound waves?

They have two kinds of movement.


They can travel through outer space.


They are generated by movements in Earth’s crust.


They require particles to transfer energy.

Answers

The statement that correctly describes a property of sound waves is that they require particles to transfer energy.

The correct option is D.

What are sound waves?

A sound wave is a pattern of disturbance that occurs as a result of the movement of energy moving through a medium as it propagates away from the source of the sound (such as air, water, or any other liquid or solid matter).

Pressure waves are produced when an object vibrates, such as a ringing phone, and these waves are known as sound waves.

Sound waves are mechanical waves and require a material medium for their propagation.

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Describe the Magnet A doesn't have its poles labeled, but Magnet B has a clearly labeled north and south pole. If these two are brought into contact with one another, which of the following could you expect?benefits and risks associated with nuclear energy

Answers

If magnet A and magnet B  are brought into contact with one another, they may either repeals (if same pole come in contact) or attract (if opposite pole come in contact).

What is magnet?

A substance or thing that creates a magnetic field is called a magnet. The most noteworthy characteristic of a magnet—a force that pulls on other ferromagnetic elements, such as iron, steel, nickel, cobalt, etc.

The benefits of nuclear energy is: it is carbon-free electricity and reliable energy source.

The risks associated with nuclear energy are: nuclear waste, malfunctions can be catastrophic.

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bob is driving the getaway car after the big bank robbery. he's going 50 m/s when his headlights suddenly reveal a nail strip that the cops have placed across the road 140 m in front of him. if bob can stop in time, he can throw the car into reverse and escape. but if he crosses the nail strip, all his tires will go flat and he will be caught. bob's reaction time before he can hit the brakes is 0.8 s , and his car's maximum deceleration is 10 m/s2 . Is Bob in jail?

Answers

Bob drives the getaway car after the massive bank robbery. When his headlights reveal a nail strip 140 m ahead, he's going 50 m/s. Bob escaped jail.

Bob's initial speed was 50 m/s and his reaction time was 0.8 s, so his braking distance can be calculated using the equation:

d = v * t + (a * t^2)/2,

Where:

a is the deceleration.t is the reaction time plus the time it takes to come to a stop.

Substituting the values, we get:

d = 50 * 0.8 + (10 * (0.8^2))/2 d = 40 + 3.2 d = 43.2 m

So if Bob's stopping distance is less than 140 m, he can stop in time and escape. Since 43.2 m is less than 140 m, Bob is not in jail and has escaped.

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A student is performing an experiment comparing sound and light waves. The student gathers the following data.

A 3 column table with 3 rows labeled Speed of Sound. The first column is labeled medium with entries ice, water, steam. The second column is labeled temperature in degrees Celcius with entries 0, 25, 100. The last column is labeled speed of sound in meters per second with entries 3200, 1500, 346. A second 3 column table with 3 rows labeled speed of light. The first column is labeled medium with entries air, water, glass. The second column is labeled index of refraction with entries 1.00, 1.33, 1.57. The last column is labeled speed of light in meters per second with entries 2.99 times 10 Superscript 8 Baseline, 2.26 times 10 Superscript 8 Baseline, 1.91 times 10 Superscript 8 Baseline.

What conclusion does the student most likely make based on this data?

Answers

The conclusion that the student most likely make based on this data is that D. Tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

How to convey the information

Because sound waves must travel through a material medium in order to propagate, they are mechanical waves. When atoms or particles are packed closely together to form a solid, light waves are typically slowed, which increases their speed when they bounce off of one another.

Thus, we can draw the conclusion that whereas tightly packed particles in solids slow down light waves, sound waves cause particles to bounce off of one another, causing them to move more quickly through solids.

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What conclusion does the student most likely make based on this data? Light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through.

All sound waves always have the same energy, so the temperature of the medium does not affect wave speed.

Light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas.

Tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

we are given that the moving car is driving at a constant rate of change and know that the car passes mile marker 24 at exactly 4:00 pm and passes mile marker 29 at exactly 4:04 pm. At what constant rate of change is the car traveling on this interval? 5.6 * miles per minute

Answers

The constant rate of change that the car is traveling on this interval or the velocity of the car is 1.25 miles per minute.

What is the velocity of an object?

The velocity of an object is the rate of change of the displacement of an object with time.

Mathematically;

The velocity of an object = change in displacement / change in time.

The constant rate of change that the car is traveling on the given interval is calculated below as follows:

Change in displacement = 29 miles - 24 miles

Change in displacement = 5 miles

Change in time = 5.04 pm - 4:00 pm

Change in time = 4 minutes

Velocity = 5 miles / 4 minutes

Velocity = 1.25 miles /min

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Constants Charges on raindrops vary widely in both magnitude and sign. Consider a case where the two drops on the 3-axis are 2.18 mm apart and have charge q = 769 nC, while the third drop is 12.8 mm up the x-axis and has charge Q = -1.72 uC. (Eigure 1) Part B Find the y-component of the electric force on the upper drop Express your answer with the appropriate units. Figure 1 of 1 0 μΑ ? FQy= – 21.37 N Submit Previous Answers Request Answer X Incorrect; Try Again; 5 remaining X=-a x=a Provide Feedback Next >

Answers

The electric force in y-direction on upper drop is, -41.055 N.

The net force on y- direction is the sum of the forces on upper drop due to the two drops on x-axis.

Charge on upper drop is, -1.72 μC.

The charges are 769 nC = 0.769 μC

The distance between upper drop and the charge on x-axis is,

[tex]\sqrt{{1.09}^2+{12.8}^2}\ mm[/tex]

= 12.84 mm

Force between two charges q1 and q2 placed at a distance r is,

[tex]F = \dfrac{kq_{1}q_{2}}{r^2}[/tex]

The angle between y- axis and direction of force is, 4.867°.

The y-component of force on upper drop is,

[tex]F = \dfrac{k(0.769)(-1.72)}{0.00284^2} \times 10^{-12} \cos{4.867^{0}} + \dfrac{k(0.769)(-1.72)}{0.00284^2} \times 10^{-12} \cos{4.867^{0}} \\F = - 2 \times \dfrac{k(1.323)}{8.0656} \times 10^{-12+6} \cos{4.867^{0}} \\F = - 2 \times \dfrac{4 \pi \ 10^{-7}(1.323)}{8.0656} \times 10^{-6} \times \cos{4.867^{0}}[/tex]

Solving further,

[tex]F = - 2 \times \dfrac{4 \pi \ 10^{7}(1.323)}{8.0656} \times 10^{-6} \times 0.996 \\F = - 4.122 \times 10 \times 0.996\\F = -41.055 N[/tex]

The force in y-direction on upper drop is, -41.055 N.

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Suppose that only two external forces act on a rigid body, and the two forces are equal in magnitude but opposite in direction. Under what condition does the body rotate?

Answers

Unless the two forces are parallel to each other, the two will produce a net torque that will cause rotation.

What is rotation?

The circular movement of an object about a central axis is referred to as rotation or spin. A two-dimensional spinning object can rotate in either a clockwise or counterclockwise direction and has just one potential central axis. There are countless conceivable central axes and rotating directions for three-dimensional objects.

An imaginary line is referred to as a rotation axis if it is the center of rotation for three-dimensional objects such as the earth, moon, and other planets. The body is said to spin or revolve upon itself if the axis passes through the center of mass of the object.

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1 10) A radioactive substance decayed to of the initial no's after 50 128 days. Find the half-life of radioactive substance. [2074]​

Answers

Answer:

The half-life of a radioactive substance is the amount of time it takes for half of the initial amount of the substance to decay. In this case, the initial number of atoms decayed to half of the initial number after 128 days. So the half-life of the radioactive substance is 128 days.

the area of a parallelogram is 1801, and the lengths of its sides are 19 and 99. determine, to the nearest tenth of a degree, the measure of the acute angle of the parallelogram.

Answers

The acute angle of the parallelogram is approximately 53.7 degrees.

The area of a parallelogram is equal to the product of its base and height, so we can write the equation:

A = b x h

where A is the area (1801), b is one of the sides (19), and h is the height.

The height of the parallelogram can be found by dividing the area by the base:

h = A / b = 1801 / 19 = 94.95

To find the angle, we can use the trigonometric function tangent:

tan(theta) = h / l

where theta is the acute angle of the parallelogram,

h is the height (94.95), and

l is the other side length (99).

Calculating the tangent and using the inverse tangent function to find the angle:

[tex]\theta = tan^{-1(h / l)} = tan^{-1(94.95 / 99)}[/tex]

= [tex]tan^{-1(0.9604)}[/tex]

= 53.7 degrees (to the nearest tenth of a degree)

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a teacher pushes a bookshelf using force of 10 newtons. if the teacher moved the bookshelf 20 feet how much work did she do?

Answers

The work done by the teacher can be calculated using the equation:

work = force x distance x cos(θ)

Here, the force is 10 N, the distance is 20 feet (converted to meters) and the angle between the direction of force and distance is 0 degrees, so cos(0) = 1.

So, work = 10 N x 20 feet x 0.3048 m/foot x 1 = 60.96 J

The teacher did 60.96 joules of work.

astronomers have found many different kinds of objects beyond earth. the sun is an example of a star, which is . round objects that revolve around (orbit) a star are called . large collections of billions of stars, like the milky way, are called . moons are smaller objects that . astronomers call the sum total of everything that is out there .

Answers

Astronomers have found many different kinds of objects beyond earth. the sun is an example of a star, which is a giant gaseous ball. Round objects that revolve around (orbit) a star are called Planets. Large collections of billions of stars, like the milky way, are called galaxy . Moons are smaller objects that orbit a planet . Astronomers call the sum total of everything that is out there the universe .

What is universe?

The entire universe is made up of space and all the stuff and energy it contains. Even time is a part of it, and you are obviously a part of it.

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List three sources to use and access for detailed explanations for completing the lab exercises. geology

Answers

Textbooks, scientific journals, and online tutorials and are the three resources that can be used and accessed for full explanations regarding how to complete the lab exercises.

The Explanation for Each Source

Textbooks: Textbooks are a great resource for learning about geology, and many are available online. Some popular options include Physical Geology by James H. Zumberge and Earth: An Introduction to Physical Geology by Edward J. Tarbuck and Frederick K. Lutgens.

Scientific journals: Peer-reviewed scientific journals are a good source for detailed explanations of geological concepts and processes. JSTOR and Elsevier are two of the many platforms that allow you to search for and access articles related to geology.

Online tutorials and videos: You.Tube and websites like Coursera and Udemy offer a wealth of online tutorials and videos that can help you understand geological concepts and complete lab exercises. These resources are often created by experts in the field and provide a step-by-step approach to understanding and solving problems related to geology.

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A 10-m-long glider with a mass of 680 kg (including passengers) is gliding horizontally through the air at 38 m/s when a 60 kg skydriver drops out by releasing his grip on the glider. What is the glider's velocity just after the skydiver let's go?

Answers

The glider's velocity just after the skydiver let's go is 41.68 m/s

What is velocity?

It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).

The given parameters;

mass of the glider with the skydiver, m1 = 680 kginitial velocity of the glider, v1 = 38 m/smass of the skydiver, m = 60 kg

Calculating the speed of the glider when the skydiver is released with the principle of conservation of linear momentum:

mass of the glider without the person, m2 = 680 kg - 60 kg

mass of the glider without the person, m2 = 620 kg

initial momentum of the glider = final momentum of the glider

m1*v1 = m2*v2

v2 = (m1*v1)/ m2

v2 = (680*38)/ 620

v2 = 41.68 m/s

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What height do you need to set your rollercoaster at to reach a final velocity of 30m/s^2?( using the conservation of energy formula)

Answers

Answer:

Below

Explanation:

The gravitational Potential Energy due to height will be converted to Kinetic Energy at the low point bottom:

PE = KE

mgh = 1/2 mv^2     divide by m

gh = 1/2 v^2

h = 1/2 v^2 / g = 1/2 * 30^2 / 9.81 = 45.9 m

An electric heater rated at 50 watts is used to
heat 100g of water in a calorimeter from 50°C to 100°C.
Calculate the time for which the current flowed. Neglect the
specific heat capacity of the calorimeter. Take the specific
heat capacity of water as 4200J/kgK.

Answers

Answer:

420

Explanation:

Heat required(Q)= m*c*

So Q=21000J

Power=50Wt

time= Q/Power

time=21000/50 sec

time=420seconds

Which of the following are scientific hypotheses?
(a) Chlorophyll makes grass green.
(b) Earth rotates about its axis because living things need an alternation of light and darkness.
(c) Tides are caused by the Moon.

Answers

(a) Chlorophyll makes grass green and (c) Tides are caused by the Moon.

are scientific hypotheses so options A & C are correct.

A scientific hypothesis is a proposed explanation for a phenomenon in the natural world that is testable through experimentation and observation.

(a) Chlorophyll makes grass green is a scientific hypothesis because it proposes a cause-and-effect relationship between the presence of chlorophyll in the grass and the green color of grass.

This hypothesis can be tested through experiments that manipulate the presence of chlorophyll and measure the changes in the color of grass.

(b) Earth rotates about its axis because living things need an alternation of light and darkness is not a scientific hypothesis because it is based on a teleological (i.e., purpose-driven)

It goes against the scientific method that seeks to explain natural phenomena in terms of natural causes rather than invoking supernatural or purposive causes.

(c) Tides are caused by the Moon is a scientific hypothesis because it proposes a cause-and-effect relationship between the gravitational pull of the Moon and the rise and fall of ocean tides.

This hypothesis can be tested through experiments that measure the tides and the Moon's position and gravitational influence.

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Ten students stand in a circle and are told to make a transverse wave. What best describes the motion of the students?

Answers

The students would need to wave hands up and down to have a transverse wave.

What is a transverse wave?

A transverse wave is a type of wave where the vibration is perpendicular to the direction of wave propagation.

We have to note that in this case we have been told that  students stand in a circle and are told to make a transverse wave. The students would have to wave the hands up and down to make a transverse wave. In this was the wave  that we are able to obtain form the movement of the students is found to be transverse.

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which of the following statements is valid? which of the following statements is valid? if the field at a particular point is zero, the potential at that point must be zero. if the potential at a particular point is zero, the field at that point must be zero. if the potential throughout a particular region is constant, the field throughout that region must be zero. if the field throughout a particular region is constant, the potential throughout that region must be zero. request answer provide feedback

Answers

If the potential throughout a particular region is constant, the field throughout that region must be zero.[CORRECT]

Characteristics of Potential Energy

The following are the characteristics of potential energy

Gravitational potential energy is possessed by an object due to its position relative to the earth Any object that has gravitational potential energy can do work when it moves towards the surface of the earth If an object has the potential to do business, then the object has potential energy. Potential energy is energy stored in an object because of its height. Potential energy is also affected by the acceleration due to gravity and the height of an object. The higher and the greater the mass of the object, the greater the potential energy. Vice versa, if the mass of the object is smaller and the height of the object is lower, the potential energy is smaller. If the object lies above the ground, then the potential energy is zero. So potential energy is always related to the height of the object.

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the reason the velocity we measured was lower than the velocity we predicted is that some of the kinetic energy of the marble was converted to thermal energy during the collision. also, after the collision, air friction and bending in the pendulum rod converted more kinetic energy into thermal energy.

Answers

Yes, Actually most of the kinetic energy lost here to thermal energy and sound. and there's also some energy imparted to the rest of the apparatus through the forward component of force the pendulum exerts on its upper support. the fraction lost for this totally inelastic collision is strictly dependent on the mass ratio of ball pendulum.

What is Velocity ?

The vector quantity of velocity describes the speed at which an object's position is changing. It is determined by dividing an object's displacement over a specified period of time. The standard unit of velocity is metres per second (m/s), and it has both magnitude and direction.

The velocity of an object can change over time due to acceleration, and if an object is moving in a circular path, it also has a component of velocity perpendicular to its direction of motion, known as centripetal  velocity.

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Consider the following hypothetical aqueous reaction: A(aq)→B(aq). A flask is charged with 0.065 mol of A in a total volume of 100.0 mL. The following data are collected: Part A
Calculate the average rate of disappearance of A between t= 30 min and t= 40 min, in units of M/s.
Express your answer using two significant figures.
Part B
Between t= 10 min and t= 30 min, what is the average rate of appearance of B in units of M/s? Assume that the volume of the solution is constant.
Express your answer using two significant figures.

Answers

For the reaction A(aq)→B(aq) the average rate of disappearance Of A = - Δ.

Define  aqueous reaction?

This reaction occurs when two aqueous strong electrolyte solutions mix and produce an insoluble solid, also known as a precipitate. The ability of a substance to dissolve in water is determined by whether the substance can match or exceed the strong attractive forces that water molecules generate between themselves.

Aqueous reactions are reactions that take place in water. To understand them, it is important to understand how compounds behave in water. Some compounds are electrolytes- they dissociate into separate ions in water. However, not all electrolytes behave the same way.

An aqueous reaction is a chemical reaction that take place in water. Many important chemical reactions take place in water and many of these are associated with life. There are three main types of aqueous reactions and these are known as precipitation reactions, acid-base reactions and oxidation-reduction reactions.

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A ball of mass 2kg is launched upward with a velocity of 5m/s. Calculate the height when the ball stops moving. (PLEASE HELP i dont understand this and this is due tmr pls do it step by step!!)

Answers

Answer:

Wouldn't it be 0 because that's when the ball stops?

Explanation:

What is the Q-value (in Mev) for each of the following possible nuclear reactions? Which are exothermic and which are endothermic?11P + 49Be ======> 510B + γ (note the last sign is a gamma)11P + 49Be ======> 59B + 01n11P + 49Be ======> 49Be + 11P11P + 49Be ======> 48Be + 12H11P + 49Be ======> 47Be + 13H11P + 49Be ======> 36Li + 24He

Answers

The Q-value (in Mev) for the reaction

11P + 49Be ======> 510B + γ is 11.7

MeV and this reaction is endothermic.

The Q-value (in Mev) for the reaction

11P + 49Be ======> 59B + 01n is -10.7 MeV and this reaction is exothermic.

The Q-value (in Mev) for the reaction

11P + 49Be ======> 49Be + 11P is 17.4 MeV and this reaction is exothermic.

The Q-value (in Mev) for the reaction

11P + 49Be ======> 48Be + 12H is -4.2

MeV and this reaction is endothermic.

The Q-value (in Mev) for the reaction

11P + 49Be ======> 47Be + 13H is -3.3

MeV and this reaction is endothermic.

The Q-value (in Mev) for the reaction 11P + 49Be ======> 36Li + 24He is -7.5 MeV and this reaction is exothermic.

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