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An outfielder throws a 0.150 kilogram baseball at a speed of 40.0 m/s and an initial angle of 30.0o. Find the kinetic energy of the ball at highest point of its motion?
Two concentric metal spheres are found to have a potential difference of 846.0 V when a charge of 3.186·10-8 C is applied to them. What is the radius of the inner sphere
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. Find the total sound intensity that the man hears
consider two widely separated conducting spheres 1 and 2 the second having five times the diameter of the first. the
holding these two strips togeather they will repel each other. assume the average lencth 10cm of the tapes is half
Imagine removing one electron from every atom in a tiny cube of gold 1 mm on a side. (Never mind how you would hold the resulting positively charged cube together.) Do the same thing with another such cube a meter away.
The distance between two telephone poles is 44.5 m. When a 1.00-kg bird lands on the telephone wire midway between the poles, How much tension does the bird produce in the wire
A photon of energy 50 MeV moves along the x-axis and Comptonscatters with an electron initially at rest. After the collision the resulting photon is observed traveling along the y-axis and the electronhas recoiled.
How long does it take for the grinding wheel to stop ? Through how many radians has the wheel turned during the interval found in.
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.10 cm thick. The bullet strikes board with a speed of 455m/s and emerges with a speed of 279m/s. (To simplify, suppose that the bullet accelerates only while the fr..
A 70kg person running at an initial speed of 4m/s jumps onto a120kg cart initially at rest. Determine the displacement of the person relative to theground while he is sliding on the cart
If an object on a horizontal frictionless surface is attached to a spring, displaced, and then released, it oscillates. Estimate the frequency of the motion
suppose that each vehicle is initially moving at 8.60 m/s and that they undergo a perfectly inelastic head-on collision. what force does the seat belt exert on each driver
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