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A football quarterback throws a pass at an angle of 36°. He releases the pass 3.50 m behind the lineof scrimmage. His receiver left the line of scrimmage 2 s earlier, going straight down-field at a constantspeed of 7.50 m/s. With what speed must the quarterback throw theball so that the pass lands gently in the receiver's hands withoutthe receiver breaking stride? Assume that the ball is released at the same height it is caught and that the receiver is straightdown field from the quarterback at the time of release. (Ignore anyeffects due to air resistance.)
A bowling ball (mass = 7.2 kg, radius = 0.14 m) and a billiard ball (mass = 0.47 kg, radius = 0.028 m) may each be treated as uniform spheres. What is the magnitude of the maximum gravitational force that each can exert on the other?
A solid cylinder has a mass of 3.2kg and a radius of 0.6m. find the linear acceleration of the center of mass of the cylinder?
A toriod with a square cross-sectional area A = a x a m2 , has an inner radius R and and outter radius R+a. What are the bound currents in the Toroid
A mass m=4.5 kg is attached to the vertical spring with k=200 N/m and is set into motion. what is the maximum value of the velocity
A room with dimensions 7M X 8M X 2.5M is to be filled with pure oxygen at 22.0 degrees C and 1.00 atm. The molar mass of oxygen is 32.0 g/mol. How many moles of oxygen are required to fill the room
How much heat is required to raise the temperature of 0.265kg of water from 20.4 degrees C to 31.8 degrees C
A 1.80Kg brick is sliding next to on a rough horizontal surface at 13.5m/s .If the brick stops in 4.80, how much mechanical energy is lost.
mass-spring system can oscillate with simple harmonic motion because a compressed or stretched spring has which kind of energy.
Two point charges, +3.33 µC and -6.70 µC, are separated by 1.29 m. What is the electric potential midway between them
If, as is typical, each of them breathes about 500 {rm{ cm}}^3 of air with each breath, approximately what volume of air (in cubic meters) do these astronauts breathe in a year.
A11-g coin slides upward on a surface that is inclined at an angle of13°above the horizontal. Find the magnitude and direction of the force of friction
A heavy rainstorm dumps 1.0cm of rain on a city 3km wide and 6 long in a 2- h period. How many gallons of water was this
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