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An 81 kg running back moving at 4.0 m/s makes a perfectly inelastic collision with a 105 kg linebacker who is initially at rest. What is the speed of the players just after their collision?
m/s
a hollow cube with 12 cm in each side and thickness 1 cm floats half submerged in a liquid of density kg/m^3. find the density of the cube
A cancer treatment called the gamma knife uses focused 60Co sources to treat tumors. Each 60Co nucleus emits two gamma rays, Determine the effective radiation dose received by the tumor
Infrared light of wavelength 2.5 illuminates a 0.20-mm-diameter hole. What is the angle of the first dark fringe in rad, in deg? and sin (fi)=lambda/D is not the formula
Suppose now that you are at rest relative to the raft standing at the rear end except this time the raft is in the middle of the lake moving at a speed of 4.0 m/s. find the raft's speed relative to a stationary observer
A sledge loaded with bricks has a total mass of 17.0 kg and is pulled at constant speed by a rope. What is the increase in internal energy in the sledge and the surface due to friction
The cutoff wavelength for a metal is found to be 300. nm. Calculate the maximum velocity of the emitted electrons
A particle of 8 kg with a veloctiy of 40 m/s hits a 40 kg particle that is at rest. The collision is elastic. What are the final velocities of the particles
if you throw a ball upward with an initial speed of 4m/s at 1.5 above the ground, find the final velocity just before touching the ground
Suppose you have a 9.00 V battery, a 2.2uF capacitor, and a 9.05uF capacitor. Find the total charge stored in the system if the capacitors are connected to the battery in series in C
Find the final velocity of the two balls if the ball with velocity v2i = -21.2 cm/s has a mass equal to half that of the ball with initial velocity v1i = +27.6 cm/s
Describes possible scenarios among following
An archer shoots an arrow horizontally at the target 14 m away. The arrow is aimed directly at the center of target, but it hits 59 cm lower.
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