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Mary and her younger brother Alex decide to ride the carousel at the State Fair. Mary sits on one of the horses in the outer section at a distance of 2.0 m from the center. Alex decides to play it safe and chooses to sit in the inner section at a distance of 1.5 m from the center. The carousel takes 3.4 s to make each complete revolution.
(a) What is Mary's angular speed M and tangential speed vM?
(b) What is Alex's angular speed A and tangential speed vA?
The loaded cab of an elevator has a mass of 3000kg and moves 216-m up the shaft in 23s at constant speed. At what average rate does the force from the cable do work on cab.
Two point charges are located on the x axis. The first is a charge +Q at x = ?a. The second is an unknown charge located at x = +3a. What are the two possible values of the unknown charge
A transformer on a pole near a factory steps the voltage down from 3600 V (rms) to 120 V (rms). calculate the power delivered to the primary
A car of mass 1430 kg traveling at 28 m/s is at the foot of a hill that rises 105 m in 3 km. Find the average power delivered by the car's engine
Two metal spheres are separated by a distance of 0.8 cm and a power supply maintains a constant potential difference of 850 V, what is the distance between the spheres at this time in nm
q1. a race car has the mass of 702 kg. it starts from rest and travels 45.0 m in 3.0 s. the car is uniformly
A 560N force is pulling a 105.0kg crate across a horizontal floor. The force acts at an angle of 34.0o above the floor. find the work done by the pulling force
A high speed proton collides with a proton at rest, two proton-antiproton pairs were created. That is some of the accelerated protons kinetic energy was enough to be converted into the mass of the new particles. If the proton-antiproton pairs move al..
At a height of ten meters above the surface of a freshwater lake, a sound pulse is generated. How deep is the lake
ball A is dropped (starting at rest) from the top of a buildingof heighth at the sameinstant that ball B is thrown vertically upward from the ground. At what height does the collision occur
The rate of airflow into and out of the lungs can be approximated as a sine wave dV/dt = A sin 2?ft, where f is the breath frequency and t is the time. Determine the maximum flow rate A as a function of tidal volume of the lung, V_Total and the fr..
A proton has a speed of 0.80c.Calculate the rest energy of the proton. Calculate the total energy of the proton
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