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In a performance test, each of two cars takes 9.3 s to accelerate from rest to 25 m/s. Car A has a mass of 1415 kg, and car B has a mass of 1900 kg. Discover the net average force that acts on (a) car A and (b) car B during the test.
An astronaut in a rocket passes a meter stick moving parallel to its long dimension. How fast is the rocket moving with respect to the meter stick
a board lies on top of 2 uniform cylinders that lie on a fixed plane inclined at an angle theta. the board has mass m
An electron with kinetic energy 1.36 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 24.0 cm. Find the frequency of circling
two displacement vectors of magnitudes 21 cm and 79 cm are added. which one of the following is the only possible
q1. clarify how einsteins contribution to understanding the force between the earth and the moon differed from newtons.
The men's world record for the shot put, 23.12 m, was set by Randy Barnes of the United States on May 20; 1990.If the shot was launched from 6 ft above the ground at an initial angle of 42degrees, what was its initial speed.
A stunt pilot is attempting to drop a water ballon from a moving air plane onto a target on the ground. the plane moves at a speed of 79.69 m/s and a 39 above the horizontal when the ballon is released. at the point of release the plane is at an alti..
a ball is thrown vertically upwards into the air. it rises a vertical distance of 3.1 m before falling to the ground.
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, Find the speed of the wagon
A hydrogen atom initially in the ground state absorbs a photon, determine the wavelength and frequency of the photon
A woman on a bicycle traveling at 10m/s on a horizontal road stops pedaling as she starts up a hill inclined at 3.0 degrees to the horizontal
Suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of +3.10 pC. (a) What percentage of the electrons originally in the cube was removed.
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