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Determine the initial velocity with which a soccer player must kick the ball, such that the ball bounces and then achieves maximum height of 2.20 m at pt. C or just passing under the horizontal bar. Coefficient of restitution between the ball and the field is e=0.5 .
You have a 1.8m long copper wire. You want to make an N-turn current loop that generates a 2.0mT magnetic field at the center when the current is 1.3A. What will be the diameter of your coil
The crankshaft in a race car goes from rest to 3300{\rm rpm} in 2.7{\rm s}. What is the crankshaft's angular acceleration
On April 13, 2029 (Friday the 13th!), the asteroid 99942 mi Apophis will pass within 18600 mi of the earth-about 1/13 the distance to the moon! It has a density of 2600 kg/m^3, how much kinetic energy would it deliver
A 5.0 kig block is hung from the ceiling on a 2.0-meter-long wire with a mass of 4 g. How long does it take the pulse to reach the ceiling
Electromagnetic waves of wavelength 0.178nm fall on a crystal surface. As the angle of incidence is gradually increased, starting at 0 degrees, What is the distance between the crystal planes
a copper piece of mass 10g is suspended by a vertical spring. The spring elongates 1 cm over its natural length to keep the piece in equilibrium. Find the elongation of the spring
The net force acting on an object constrained to the x axis is given by Fx(x) = x3 - 4x. (the force is in newtons and xin meters). Locate the positions of unstable and stable equilibrium. Show that each position is stable or unstable by calculating t..
A very long, straight wire carries a current of 16.3 A out of the screen. Find the magnitude of the force on the electron if it is moving upward
A 12 V battery is connected to a plate separation of 5.00 mm and a parallel-plate capacitor with a plate area of 0.20 m2. What is the charge on the capacitor? How much energy is stored in the capacitor?
A gas is compressed at a constant pressure of 0.800 atmfrom 7.00 L to 3.00 L. In the process, 400 J of energy leaves the gas by heat. What is the work done on the gas? What is the change in its internal energy?
Determine the simple harmonic motion of the spring what ac velocity is ball moving
two points a and b lie 20 cm apart on a line extending radially from a point charge q. if the potential at a is 150 v
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