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A steel ball is fastened to a cord and is released from rest when the string is horizontal. At the bottom of its path theball strikes a steel block initially at rest on a frictionless surface as indicated. The collision is elastic.
a) Explain how you would find the speedof the ball and the speed of the block immediately after the collision.b) Indicate what quantities need to be given to solve the problem.
The work function for Zinc is 4.31 eV. Find the cutoff wavelength for zinc and what is the lowest frequency of light incident on zinc
An inexpensive microscope has a tube length of 12.0cm , and its objective lens is labeled with a magnification of 10x. Calculate the focal length of the objective lens
A typical ten-pound car wheel has a moment of inertia of about 0.35kg?m2. What is the rotational kinetic energy K of the rotating wheel
A copper kettle contains water at 23.4 °C. When the water is heated to 99.5 °C, Determine the volume of the kettle
A paratrooper pilot fell 360 m after jumping without his parachute opening. He landed in a snow bank, creating a crater 1.50 m deep, but survived with only minor injuries. Assume the pilot's mass was 80 kg and his terminal velocity was 50 m/s.
A 800kg , light-weight helicopter ascends from the ground with an acceleration of 3.50m/s2. What is the work done by the net force on the helicopter?
Two soccer players, Mia and Alice, are running as Alice passes the ball to Mia. What is the magnitude and direction of the velocity of the ball relative to the ground
what is the magnitude of the electric field produced by a charge of magnitude 7.70 mu c at a distance of a 1.00 m and b
The stretched length of a spring is 4.28 m. A ribbon is tied aroundthe spring at a point near its center. A pulse created at one endof the spring makes 13 back-and-forth trips along the spring in6.59 s.
You work for a moving company and are given the job of moving two crates (masses are 130kg and 280kg) held together by a rope attached between the two. You pull on a rope attached to the larger crate giving the system the acceleration of 0.29m/s2. Wh..
A 5.25 uF capacitor is initially charged to a potential of 15.0 V. It is then connected in series with a 3.55 mH inductor. What is the maximum current in the inductor
In the figure below, a nonconducting rod of length L = 7.50 cm has charge -q = -4.68 fC uniformly distributed along its length. What is the linear charge density of the rod?
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