Since the electron has a smaller mass than the proton, it will experience a larger deflection due to the same magnetic field. Increasing the magnitude of the field compensates for this and ensures that the electron follows a circular path with the same radius as the proton.
Reversing the direction of the magnetic field is necessary because the Lorentz force on the electron is in the opposite direction to that on the proton due to its negative charge. By changing the direction of the field, the force on the electron will be in the same direction as the force on the proton, allowing it to follow the same circular path.
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you have a light spring, a metre scale and a known mass. how will you find the time period of oscillation of mass without the use of a clock ?
We can determine the time period of oscillation of a known mass using a light spring and a meter scale without the use of a clock.
To find the time period of oscillation of a known mass using a light spring and a meter scale without the use of a clock, we can follow these steps:
Hang the spring vertically from a fixed support, and attach the known mass to the bottom of the spring.Displace the mass slightly from its equilibrium position and release it. The mass will oscillate up and down on the spring.Measure the length of the spring (from the fixed support to the bottom of the mass) using the meter scale.Measure the maximum displacement of the mass from its equilibrium position using the meter scale.Repeat step 4 several times and take the average of the measurements to reduce errors.Use the formula for the time period of oscillation of a mass-spring system: T = 2π√(m/k), where m is the mass of the object and k is the spring constant.Calculate the spring constant k using the measured length and maximum displacement of the mass, and the known properties of the spring.Use the calculated spring constant and the known mass to find the time period of oscillation of the mass.Learn more about oscillation :
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If a box of 11.54 kg is sliding down the ramp at an angle of 31.04 at a constant velocity, what is the force of friction acting on the box?
The frictional force acting on the box is just opposite to the normal force acting on the box by its weight. Here, the frictional force is,
What is friction ?Friction is a kind force that opposes the normal force acting on an object. The frictional force, is a resistive force having a negative sign always. The frictional force increases as the roughness of the surface through which the object is moving.
Here, the mass of the box m = 11.54 kg
angle of sliding = 31.04 °
acceleration due to gravity of earth = 9.8 m/s²
The frictional force that opposes the motion of the box sliding down the surface is just opposite to the normal force on the box by its own weight.
F = - mg cosθ
= - 11.54 kg × 9.8 m/s² × 31.04°
= -105.9 N
Therefore, the frictional force acting on the box is -105.9 N.
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Which statement describes the best reason for having a strong hypothesis?
OA. It can be used to design an experiment.
B. It can help reinforce the scientist's preferred explanation.
C. It can help answer ethical questions.
D. It can be used to get a paper published in a scientific journal.
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 2 newtons is applied from the right. What can you conclude about the direction of motion of the object after the application of the additional force?
The conclusion about the direction of motion of the object after the application of the additional force is the object will not move in either the left or right direction, because the net force will be zero.
What is force?In physics, a force is an influence that can change the motion of an object.
The object initially encountered unbalanced forces of 10 N from the right and 17 N from the left, resulting in a net force of 7 Netwons, which caused the object to travel in the direction of the right.
The object ceased to move in either direction when a force of 7 Newtons was added from the right, as the net force decreased to zero, creating balanced forces from both directions.
Therefore, the object will continue to move with a constant velocity.
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what were two important data points in the light curve of star kic 8462852 that confused astronomers between may 2009 and february 2013
Boyajian was looking at a starlight graph in the summer of 2013 and She noticed two dimming episodes from KIC 8462852 were two important data points in the light curve of star KIC 8462852.
The irregular drop and rise in brightness that does not follow a regular or expected pattern. This shift is caused by dust, which might be the result of a collision between two comets or the bursting of one. Another plausible, although less likely, reason is that the star is through unprecedented internal turmoil.
Boyajian was looking at a starlight graph in the summer of 2013 as part of a big data set acquired by the space-based Kepler telescope during its four-year mission to search for Earth-like planets near other stars. Dips in the quantity of light emitted by a star might signal the passage of a planet in front of it. The greater the size of the planet, the greater the light drop.
Boyajian's graph implied the existence of a planet larger than any scientist has ever seen — or something more crazier.She noticed two dimming episodes from KIC 8462852 during the 800th and 1,500th days of observation, when the star's luminosity reduced by 15% and 22%, respectively. A planet nearly 11 times the size of Jupiter of Earth, would result in a 1% drop — implying that whatever is circling KIC 8462852 is significantly larger than our solar system's greatest planet.
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This is an AP physics problem on the subject of Conservation of Momentum
The Momentum is the product of mass and velocity.
What is the momentum?Momentum is a measure of an object's motion. It is defined as the product of an object's mass and its velocity. In physics, momentum is a conserved quantity, which means that the total momentum of a closed system remains constant unless acted upon by an external force.
Final momentum of Ax = 1 * 2 * cos 30 = 1.73 Kgm/s
Final momentum of Ay = 1 * 2 * sin 30 =1 Kg m/s
Final momentum of Bx = 1 * Vs * cos 30
Final momentum of By = 1 * Vy * sin 30
The velocity is then;
1 * 5 + 0 = (1 * 2) + (1 * vs)
5 = 2 + vs
Vs = 3 m/s
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the depth of water in tank oscillates sinusoidally once every 6 hours. if the smallest depth is 7.6 feet and the largest depth is 10.4 feet, find possible formula for the depth in terms of time in hours assume that at the water level is at the average of the depth and is rising
The water level is not rising at t=0, then we need to add a phase shift term to formula to account for initial position of oscillation.
Depth of water in tank oscillates sinusoidally once every 6 hours and the smallest depth is 7.6 feet and largest depth is 10.4 feet,
d(t) = A sin (ωt + φ) + C
[tex]A = (10.4 - 7.6)/2 = 1.4[/tex]
[tex]C = (10.4 + 7.6)/2 = 9[/tex]
Substituting these values:
d(t) = 1.4 sin (π/3 t) + 9
d(t) = 1.4 sin (π/3 t) + 9
This formula assumes that water level is at the average of the depth and rising at t=0, as stated in the problem. If water level is not rising at t=0, then we would need to add a phase shift term to the formula to account for the initial position of the oscillation.
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2. A young kid is playing catch with himself by throwing a ball straight up. How fast does he throw it if
the ball comes back to his hands a second later? What was the maximum height of the ball? Ignore air
resistance.
When the ball returns to his hands 0.6 seconds later, Low speeds have very little air friction. Youngster playing catch with himself while wearing a large baseball cap.
What is an object's speed?
The speed by which an object moves a distance could be thought of just like its speed. A slow-moving object travels a relatively short distance in a given length of time, whereas a fast-moving object travels a big distance in a short amount of time.
What does speed look like mathematically?
Speed is mathematically represented as follows: Distance dimension formula: M0L1T0 Time has the following dimensions: M 0 H 0 T 1. By dividing the dimensional formulas for time and distance, we arrive to the following result:
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Hi could someone help me answer these questions
Two like masses are attracted to one another by gravitational forces.
Is the force of gravitation between two masses always alluring?
Any two bodies in our world will gravitationally attract one another, according to Newton's law of gravitation. Therefore, the gravitational attraction between two masses is constant.
The gravitational force created by one mass would be better represented by the electromagnetic field of a negative charge. This is thus because both the field representation of a negative charge and the gravitational force between two masses are attractive forces. When placed in an electric field, a positive charge will often move in the direction of the electric field lines, while a negative charge would typically move in the opposite way.
When a positive charge and a negative charge interact, their forces move from the positive to the negative charge in the same manner. The electric field and consequent forces produced by two electrical charges of opposing polarity cause opposite charges to attract one another. Compared to gravitational forces, electrostatic forces are substantially stronger. This is due to the fact that gravity is dependent on mass, and since atoms have such little masses, there is almost no gravitational pull between them. The electrostatic force, however, is greater when there are charges present.
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Read the list of sentences from the article.
1 In a physical change, the material involved is structurally the same
before and after the change.
2 A piece of metal may be heated in a fire until it glows, but the metal is
the same material before heating and after cooling.
3 Chemical changes require the breaking and forming of chemical bonds
during a chemical reaction.
4 The creation of a new, solid substance from two liquid substances
indicates that a reaction has taken place that has altered the original
substances.
Which two sentences, taken together, provide the BEST evidence to support the idea
that both physical and chemical changes can significantly change the appearance of a
substance?
(A) 1 and 3
(B) 1 and 4
(C) 2 and 3
(D) 2 and 4
The best evidence that a substance's appearance can be significantly altered by both chemical and physical changes is the combination of examples 1 and 3.
Option A is correct.
What exactly is a change in the body?A substance undergoes a change in its physical characteristics when it undergoes a physical change. Most of the time, a physical change can be reversed. In the course of such a transformation, no chemical substance is produced.
What are two examples of physical and chemical changes?Chemical changes include processes like burning, frying, rusting, and rotting. The processes of melting, freezing, shredding, and boiling are all examples of physical modifications. The majority of physical symptoms can be reversed with enough energy.
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What happens to the time period of a simple pendulum if the amplitude is doubled?
When producing modest swings, the amplitude frequently has no impact at all on the pendulum's period. There is a tiny but insignificant rise in the period when the pendulum's amplitude is greater.
What alter on time period pendulum if amplitude changed?The distance to travel increases as the amplitude rises, but when the restoring force rises as well, the acceleration rises correspondingly.
This implies that the mass can move faster and cover a bigger distance. Since these qualities cancel one another, amplitude has no bearing on period.
A straightforward harmonic oscillator's period is independent of its amplitude. with the graphs of acceleration and velocity produced by the time derivatives. These oscillators also show how kinetic and potential energy can be transferred.
Therefore, the length of time is unrelated to the vibration's magnitude. Time period is unchanged by doubling the oscillation's amplitude.
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two speakers are arranged 1 m apart on the y-axis as shown. they emit 0.5 m wavelength sound in phase. if you walk in a circle around the speakers with a radius of 2 m as shown, how many points of constructive interference will you encounter?
As you circle the speakers, you will come across two areas of beneficial interference.
The scenario described in the question involves two speakers that are releasing sound waves that are 0.5 m apart in wavelength. Constructive interference happens when two waves collide and their combined amplitudes create a wave with a larger amplitude. In this scenario, when the individual moves in a circle with a radius of 2 metres around the speakers, they will come across two locations where the waves from the two speakers will collide in phase and cause constructive interference. On the perpendicular bisector of the line connecting the two speakers, these spots are situated. All other locations on the circle will experience destructive wave interference, producing waves with smaller amplitudes.
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a car moving a constant 7.0 m / s turns a corner with a radius of 20 m . what is the acceleration of the car?
The acceleration of the car as it turns the corner is 2.45 m/s^2, and it is directed towards the center of the turn.
What is Acceleration?
When an object changes its velocity, either by increasing or decreasing its speed or by changing its direction of motion, it experiences acceleration.
The formula for acceleration is:
a = (v2 - v1) / t
where a is the acceleration, v2 is the final velocity, v1 is the initial velocity, and t is the time taken for the change in velocity to occur.
To find the acceleration of the car as it turns the corner, we can use the centripetal acceleration formula:
a = v^2 / r
where a is the acceleration, v is the velocity of the car, and r is the radius of the turn.
In this case, the velocity of the car is constant at 7.0 m/s, and the radius of the turn is 20 m.
a = (7.0 m/s)^2 / 20 m
a = 2.45 m/s^2
Therefore, the acceleration of the car as it turns the corner is 2.45 m/s^2, and it is directed towards the center of the turn.
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if the block is at rest (and the only forces acting on the block are the force due to gravity and the normal force from the table), what is the magnitude of the force due to friction?
The friction force will be ZERO. because friction force act only on relative motion. but here is no motion.
In physics, pressure is an influence that may exchange the motion of an item. A force can purpose an object with mass to alternate its velocity (e.g. moving from a nation of relaxation), i.e., to boost up. its miles are measured inside the SI unit of newton (N). force is represented with the aid of the symbol F (formerly P).
The unique form of Newton's 2d regulation states that the net pressure appearing upon an object is identical to the fee at which its momentum modifications with time. If the mass of the item is steady, this regulation implies that the acceleration of an item is immediately proportional to the internet force appearing on the object, is within the direction of the internet force, and is inversely proportional to the mass of the object.
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Nichrome wire is used as heating element why?
Answer:
Explanation:
Nichrome wire is generally used as a heating element in heating appliances because it has the following features: It offers a very large resistance. So a large amount of electric energy is converted into a large amount of heat energy. It has a high melting point such that it can be heated till red hot without melting.
we place a potential difference 6.11 v across a and b, how much charge is present on the c2 capacitor?
We cannot calculate the charge on the C2 capacitor without knowing the capacitance of the capacitor.
To determine the charge present on the C2 capacitor, we need to know the capacitance of the capacitor and the potential difference across it.
Assuming that the circuit is in steady state and neglecting any resistive losses, the potential difference across both capacitors will be equal to the applied potential difference of 6.11 V.
Let's call the capacitance of C2 as C2.
Then the charge present on the C2 capacitor can be calculated using the formula:
Q = C2 * V
where Q is the charge on the capacitor,
C2 is the capacitance of the capacitor, and
V is the potential difference across the capacitor.
Plugging in the values,
we get:
Q = C2 * V = C2 * 6.11 V
We cannot calculate the charge on the C2 capacitor without knowing the capacitance of the capacitor.
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what electric field is generated when a current of 10 a flows through this resistor? give both the magnitude and direction of this electric field.
The electric field generated when a current of 10 A flows through a resistor depends on the resistance and length of the resistor. Without knowing these factors, we cannot determine the exact electric field.
However, we can use Ohm's law to calculate the voltage drop across the resistor, which is directly proportional to the electric field. Ohm's law states that the voltage drop across a resistor is equal to the product of the current and the resistance.
Assuming a resistance of 5 ohms, the voltage drop across the resistor would be 50 volts (10 A x 5 ohms = 50 V). This means that the electric field generated would be 50 V/m, assuming a length of 1 meter. The direction of the electric field would be from the positive end of the resistor to the negative end, following the direction of current flow.
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Which two types of energy does an apple falling to the ground have?
A. Nuclear energy
B. Kinetic energy
C. Sound energy
D. Elastic energy
E. Potential energy
Answer:
kinetic and I think sound energy
Answer:
kinetic energy
Explanation:
An apple falling to the ground has both potential energy and kinetic energy. As the apple falls, its potential energy is converted into kinetic energy, which is the energy an object has due to its motion. The apple gains kinetic energy as it falls and its velocity increases, and at the moment it reaches the ground, all of its potential energy has been converted into kinetic energy.
ALLEN
If you add 2.34 C to an object, how many electrons did you add?
DO NOT ROUND YOUR NUMBER
An example on how to type your number in in scientific notation 2.6e19
2.34 C corresponds to[tex]2.34 x 10^6[/tex] Coulombs, which is equal to [tex]2.34 x 10^6 x 6.24 x 10^18[/tex]electrons, or 1.44e25 electrons.
What is electron?Electron is a subatomic particle that is part of the atom. It carries a negative charge and is considered to be the primary carrier of electricity in nature. Electrons are found in the nucleus of an atom, and they are held together by a strong nuclear force. Electrons are also found in the outer shells of atoms, and they can move freely between different shells. Electron is considered a fundamental particle, which means it is not composed of any other particles. Electrons also have a mass of about 1/1836 of the mass of a proton. Electrons are extremely important in everyday life, as they are responsible for the electrical forces that power our devices and make them function. Electrons can also be used in various applications such as semiconductors, which are used in computers, cell phones, and other electronic devices.
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A 1000 kg car rests on four tires, each inflated to 2.2 bar. What surface area does each tire have in contact with the ground? (Assume the weight is evenly distributed on each wheel.)
The surface area each tire have in contact with the ground is 0.11 m².
What is the Surface area of each tire?The weight of the car is evenly distributed on each wheel, so each wheel supports a force of 1000 kg / 4 = 250 kg.
The force on the tire is transmitted to the ground through the tire's contact patch, which is the surface area of the tire in contact with the ground.
The tire's contact patch can be calculated by dividing the total force on the tire by the pressure of the tire:
Contact patch area = Force on tire / Pressure
= 250 kg x 9.8 N/kg / (2.2 bar x 10⁵ Pa/bar)
= 0.11 m²
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an automobile is sliding across an icy street at a speed of 69.3 km/h and it collides with a parked car. the two cars lock up and they slide together with a speed of 35.7 km/h. if the mass of the parked car is 1250 kg, then what is the mass of the first car?
We can solve this problem by using the principle of conservation of momentum, which states that the total momentum of a system of objects remains constant unless an external force acts on it. By using this the mass of the first car is 2053 kg.
Explain the principle of conservation of momentum.A fundamental tenet of physics is the conservation of momentum, which holds that unless an outside force occurs on an isolated system of objects, its overall momentum will not change. As long as there are no outside forces acting on the system, this indicates that the total momentum of a system prior to a collision or interaction is equal to the total momentum of the system following the collision or interaction.
To calculate the mass of the first car:
The momentum of a car is given by its mass times its velocity. So, we can write:
The momentum of first car before collision + momentum of the parked car before collision = momentum of both cars after collision
Let the mass of the first car be m1, and let the velocity of the first car before the collision be v1. We can convert the given speeds from km/h to m/s, since the units need to be consistent for the calculation:
69.3 km/h = 19.25 m/s
35.7 km/h = 9.92 m/s
Using the principle of conservation of momentum, we can write:
m1 * v1 + 0 = (m1 + 1250 kg) * 9.92 m/s
Simplifying and solving for m1, we get:
m1 * v1 = (m1 + 1250 kg) * 9.92 m/s
m1 * v1 = 9.92 m/s * m1 + 9.92 m/s * 1250 kg
m1 * v1 - 9.92 m/s * m1 = 9.92 m/s * 1250 kg
m1 * (v1 - 9.92 m/s) = 9.92 m/s * 1250 kg
m1 = (9.92 m/s * 1250 kg) / (v1 - 9.92 m/s)
We don't know the value of v1, but we can find it by using the fact that the two cars slide together after the collision. The velocity of the two cars after the collision is given by:
35.7 km/h = 9.92 m/s
Using the principle of conservation of momentum again, we can write:
m1 * v1 + 0 = (m1 + 1250 kg) * 9.92 m/s
m1 * v1 = 9.92 m/s * (m1 + 1250 kg)
v1 = 9.92 m/s * (m1 + 1250 kg) / m1
Substituting this expression for v1 into the earlier equation, we get:
m1 = (9.92 m/s * 1250 kg) / (9.92 m/s * (m1 + 1250 kg) / m1 - 9.92 m/s)
Simplifying this equation and solving for m1, we get:
m1 = 2053 kg
Therefore, the mass of the first car is 2053 kg.
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Solve problems 1 and 2.
Answer:
both questions are B
Explanation:
I observed the photo and I saw two Bs circled in the photo. Hope this helps!
7. The average compensation for female tennis players is $283,635, but the median compensation is much lower at around $76,000. Why are these numbers so different?
OA. Outliers who win very little prize money pull the median down.
OB. Outliers who win very little prize money pull the average down.
O C. Outliers who win a lot of prize money pull the median up.
OD. Outlers who win a lot of prize money pull the average up
These numbers are so different because Outliers who win very little prize money pull the median down. Thus, the correct option for this question is A.
What is Compensation?Compensation may be characterized as the process of monetary payment that is correspondingly given to an individual in exchange for their services. It includes salary or wages in addition to commission and any incentives or perks that come with the given employee's position.
According to the context of this question, the average compensation for female tennis players is $283,635, but the median compensation is much lower at around $76,000. This is due to the existence of outliers who win. They pull down the median of the money with respect to the average compensation.
Therefore, these numbers are so different because Outliers who win very little prize money pull the median down. Thus, the correct option for this question is A.
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find odd one out
stigma ,anther ,style ,ovary.
Answer:
style
Explanation:
why is the following situation impossible? a technician is testing a circuit that contains a resistance . he realizes that a better design for the circuit would include a resistance rather than . he has three additional resistors, each with resistance . by combining these additional resistors in a certain combination that is then placed in series with the original resistor, he achieves the desired resistance.
By combining the additional resistors in a certain combination that is then placed in series with the original resistor, he achieves the desired resistance which is expressed as follows:
1- Resistors in series: when [tex]R_{1}, R_{2}, R_{3}[/tex], ...... several resistors when are connected in series, the sum of the individual resistances gives the equivalent resistance [tex]R_{eq}[/tex]:
[tex]R_{eq}[/tex] = [tex]R_{1} + R_{2} + R_{3} + ........[/tex]
2- Resistors in Parallel: when [tex]R_{1}, R_{2}, R_{3}[/tex], ...... several resistors when connected in parallel, the sum of the reciprocals of the individual resistances is the reciprocal of the equivalent resistance [tex]R_{eq}[/tex] :
[tex]\frac{1}{R_{eq} } = \frac{1}{R_{1} } +\frac{1}{R_{2} } + \frac{1}{R_{3} } +.... (2)[/tex]
There are four ways to connect the three additional resistors in series with the original resistor.
The first way is if all the resistors are in series. The equivalent resistance of the new circuit is then found in Equation (1):
[tex]R_{eq} = R+R + R + R \\ = 4R[/tex]
The second way is if all the additional resistors are in parallel. The three resistors in the blue rectangle are in parallel and their equivalent resistance is from Equation(2):
[tex]\frac{1}{R_{eq} } = \frac{1}{R} + \frac{1}{R} + \frac{1}{R} \\ R_{eq} = \frac{R}{3}[/tex]
The R/3 and R resistors are in series and their equivalent resistance is ind from Equation (1):
[tex]R_{eq} = \frac{R}{3} + R\\ = \frac{4}{3} R[/tex]
The third way is if two resistors from the additional resistors are in parallel and the third one is in series with the combination. The two resistors in the blue rectangle are in parallel and their equivalent resistance is found in Equation (2):
[tex]\frac{1}{ R_{eq}} = \frac{1}{R} + \frac{1}{R} \\ R_{eq} = \frac{5}{2} R[/tex]
The two R resistors and the R/2 resistor are in series and their equivalent resistance is found in Equation(1):
[tex]R_{eq} = \frac{R}{2} + R + R\\ = \frac{5}{2}R[/tex]
The fourth way is if two resistors from the additional resistors are in series and the third one is in parallel with the combination. The two resistors in the blue rectangle are in series and their equivalent resistance is ind from Equation(1):
[tex]R_{eq} = R + R\\ = 2R[/tex]
The 2R and R resistors are in parallel and their equivalent resistance is found in Equation (2):
[tex]\frac{1}{R_{eq} } = \frac{1}{2R} + \frac{1}{R}\\ R_{eq} = \frac{(2R)R}{2R + R}\\[/tex]
[tex]= \frac{2R^{2} }{3R} \\ =\frac{2}{3} R[/tex]
The 2R/3 and R resistors are in series and their equivalent resistance is found in Equation (1):
[tex]R_{eq} = \frac{2R}{3} + R\\ = \frac{5}{3}R[/tex]
Therefore, there is no combination possible that would make the equivalent resistance of the circuit [tex]\left \ {{7} \atop {3}} \right. R[/tex] and the expressed situation is impossible.
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a 159 watt motor in a bowling alley lifts an 7 kg bowling ball directly upwards at a constant speed. at what speed does the ball rise?
The speed at which the ball rises is 2.24 m/s.
What is power output?Power output refers to the amount of power that a device, machine, or system produces or generates. It is a measure of the rate at which work is done or energy is transferred, and is usually expressed in units of watts (W) or kilowatts (kW).
We can use the formula for power to find the speed at which the ball rises. The power output of the motor is given by:
Power = Work done / time taken
Since the ball is lifted at a constant speed, the work done by the motor is equal to the gravitational potential energy gained by the ball, which is given by:
Work done = mgh
where m is the mass of the ball, g is the acceleration due to gravity (9.8 m/s²), and h is the height through which the ball is lifted. The time taken to lift the ball is equal to the height of the lift divided by the speed of the lift, which is given by:
time taken = h / v
where v is the speed of the lift. Substituting these expressions into the formula for power, we get:
Power = mgh / (h/v)
Power = mgv
Solving for v, we get:
v = Power / (mg)
v = 159 W / (7 kg x 9.8 m/s²)
v = 2.24 m/s
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An apple weighs at 1N. the net force on the apple when it is in free fall is?a.0Nb.0.1Nc.1Nd.10Ne. none of the abov
The net force on the apple when it is in free fall is option C: 1N, as the net force experiences by the object in a free fall is under the influence of the gravity.
Free-fall of an object is independent of its weight. The object is fall downwards due to gravity; thus, the object only experiences an external force and undergoes acceleration due to gravity. This means if the objects weights at 1N, the net force on the apple would also be 1N.
Free-fall is a motion of an object caused under the influence of the gravity. As the gravity is the external force here that makes the object to fall, the object would be accelerated owing to this external force. This is the reason why free-fall is referred to as the acceleration due to gravity. The force experienced by the gravity is always constant, and this constant is called the gravitational constant and has a value equivalent to 9.8 m/s².
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Junita lifts a round box & a square box to a shelf. The GPE for the round box increases by 50 J. The GPE for the square box increases by 100 J. On which box did Junita do more work
Junita will do more work on the square box. when Junita lifts an object to a shelf, she does work on the object, which increases its gravitational potential energy (GPE).
The amount of work done on an object is equal to the increase in its GPE.
Junita lifted a round box and a square box to a shelf. She did work on the boxes, increasing their GPE. The round box's GPE increased by 50 J, meaning Junita exerted 50 J of work.
The square box's GPE increased by 100 J, meaning Junita did 100 J of work on it.
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would a positive test particle released from rest move toward a region of higher or lower electric potential (compared to the electric potential at the point where it is released)?
A positive test particle released from rest would move towards a region of lower electric potential (compared to the electric potential at the point where it is released).
It is because of the fact that positive test particle is attracted to regions of higher electric potential and repelled by regions of lower electric potential. Since the particle is released from rest, it has no kinetic energy to overcome the potential energy barrier and move against the direction of the electric field. Therefore, it will move in the direction of decreasing electric potential, which is towards the region of lower electric potential.
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) beam divergence. how accurately do you need to point your new satellite dish? directtv uses frequencies around 18ghz and dish antennas with a diameter of roughly 50 cm (~20 inches). give your answer in both radians and degrees. does this seem practical for a homeowner to install?
For a direct TV satellite dish with a diameter of roughly 50cm and frequency around 18 GHz, an accuracy of about 0.2 degrees of 0.0035 radians is required for reliable reception.
To accurately point a satellite dish the dish needs to be pointed in the direction of the satellite and at the correct angle to reciterecieve the signal. The accuracy required depends on the size of the dish , the frequency of the signal and the distance to the satellite.
For a direct TV satellite dish with a diameter of roughly 50cm and frequency around 18 GHz, an accuracy of about 0.2 degrees of 0.0035 radians is required for reliable reception. This level of accuracy is necessary to ensure that the dish is aimed at the satellite and is able to recieve the signal with enough power to provide a clear and stable picture.
While it is technically possible for a homeowner to install a satellite dish with this level of accuracy, it can be challenging for those without experience. There are many factors that can affect the installation, such as the location of the dish the mounting system and the cable routing. In addition, weather conditions such as wind and rain can affect the allignment of the dish.
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