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A 66 KG trampoline artist jumps vertcally upward from the top of a platform with a speed of 5.4 m/.s. A) What is his speed as he lands on the trampoline, 3 m below his jump off point? B) If the trampoline behaves like a spring with spring stiffness constant 6.2×10^4 N/m , how far does he depress it? Any depression of the trampoline from equilibrium is to be taken as a negative distance.
When empty, a particular helicopter of mass 3770 kg can accelerate straight upward at a maximum acceleration of 1.34 m/s2. What is the mass of the cargo
Two circus performers, Jack and Jill, whose total mass is 120 kg, start a swing which is 5 m long such that initially the rope attached to their swing makes an angle of 36 degrees with the horizontal.
The coefficients of static and kinetic frictions for plastic on wood are 0.50 and 0.40, respectively. How much horizontal force would you require to apply to a 3.0 N plastic calculator to start it moving from rest.
For the following questions, express your answers in terms of q. (a) How much charge ends up on sphere C? (b) What is the total charge on the three spheres before they are allowed to touch each other? (c) What is the total charge on the three sphe..
A dog sits 1.50 m from the center of a merrygo-round with an angular speed of 1.78 rad/s. what is the dog's mass
Suppose that three astronauts outside a spaceship decide to play catch. All three astronauts have the same mass and are equally strong. How long will the game last
If frame rate increases what happens to the PRF
A catapult launches a rock at a 50° angle with respect to the horizontal. Find the maximum height attained if the speed of the rock at its highest point is 30.3 m/s
A rifle is aimed horizontally at a target 30 m away. The bullet hits the target 2.10 cm below the aiming point. What is the bullet's time of flight
Doug hits a hockey puck, giving it an initial velcoity of 6.0 m/s. how far will the puck slide before stopping
two parrel,very long straight wires separated by 10 cm are carrying 2.0 A and 4.0 A in opposite direction. where the magnetic field is Zero
There are approximately 120 million TVs in the United States. Each uses, on average, 75 W of power, how much money is spent every day in keeping the TVs turned on
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