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A spring with a spring constant of 100N/s is compressed adistance of 0.1m horizontally. When the spring is released itpushes a 0.25 kg mass that was initially at rest against thespring. What is the maximum speed attained by the mass?
A rescue helicopter lifts a 79-kg person straight up by means of a cable. Use the work-energy theorem and find the final speed of the person
A solid block is attached to a spring scale. When the block is suspended in air, the scale reads 21.1 N; when it is completely immersed in water, What is the volume of the block
What is the magnitude of the acceleration caused by magnetic force? Ignore the gravitational force acting on the electron.
To determine the specific heat capacity of lead, you get 500g of lead shot to 100 degrees C and place it in an aluminum calorimeter of mass 250g, what is the specific heat of lead
A particle moves in a plane with a constant radial velocity rhat = 4 m/s. The angular velocity is constant and has magnitude θhat = 2 rad/s. When the particle is 3 m from the origin, find the magnitude of the acceleration.
During a running long jump, an athlete runs with a speed of 9 m/s horizontally and, upon take off, how far will the athlete jump
Suppose you have a spherical balloon filled with air at room teperature and 1.0 atm pressure; its raidus is 12cm. what's the balloon's new radius
Two equal point charges of magnitude 4.0 ?C are situated along the x-axis at x1 = -2.0 m, compute the electric potential energy of this system of charges?
A stone tied to the end of a string is whirled around in avertical circle of radius R. Find the critical speed below which the spring would become slack at the highest point
A 13.5-g bullet is fired into a block of wood at 253 m/s. The block is attached to a spring that has a spring constant of 205 N/m. determine the mass of the wooden block
To celebrate a victory, a pitcher throws her glove straight upward with an initial speed of 6.5 m/s, How long does it take for the glove to return to the pitcher
A travelling at a speed of 15 m/s slams on the breaks locking the wheels of his car, What is the speed of the vehicle after 2 seconds have passed
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