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A tennis ball is struck at the base line of the court, 11.5 m from the net. The ball is given an initialvelocity with a horizontal component equal to 27.0 m/s at an initial elevation of 1.21 m.
a) What vertical component of initial velocity must be given to the ball, such that it barely clears the 1.00 mhigh net?b) How far beyond the net will the ball hit the ground?
A piano wire with mass 2.85 g and length 82.0 cm is stretched with a tension of 35.0 N. A wave with frequency 120 Hz and amplitude 1.40 mm travels along the wire. Calculate the average power carried by the wave. What happens to the average power if t..
A spring loaded toy is used to shoot a 3g ping pong ball straight up against air. What is the work done by air resistance
A He-Ne laser beam with an intensity of 1.00 x 103 W/m2 is incident from air to water, Find the intensity of the beam transmitted into the water
A nickel crystal is used as a diffraction grating for x-rays. Then the same crystal is used to diffract electrons. what is the kinetic energy of each electron
An object of mass 50.5 g is initially placed in boiling water so that it is at 101° C. Then the object is dropped into a calorimeter, Find the specific heat of the object
You have a concave lens whose focal length has an absolute value of 8 cm and several convex lenses with f=5.0 cm, 12 cm, 15 cm, and 20 cm. determine the focal length of the concave lens
Do you think that the commonly held goal of maximizing shareholder wealth forms the basis of identity for our capitalist systems and organizations? Explain why or explain why not?
A -6.00 µC charge is moving with a speed of 8.20 104 m/s parallel to a very long, straight wire, Find the magnitude and direction of the force on the charge.
The wheelbase on a truck is 2.4 m wide and the truck's center of mass is located along the vertical centerline of the truck and 2.0 m above the bottom of the tires
A 450 lb boy pushes on a 300 lb box with a force of 125 lb. If the box slides across the floor with constant velocity, what is the net force on the box
A box slides down a ramp between a delivery area and soring area. You must determine the angle this ramp should have with the horizontal direction so that a 500 pound box takes 5.0 seconds to slide down the ramp starting from rest at the top. While t..
A pet lamb grows rapidly, with its mass proportional to the cube of its length. Find the lamb's mass at the end of this process
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