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A 200-g block is pressed against a spring of force constant 1.40 kN/m until the block compresses the spring 10.0 cm. The spring rests at the bottom of a ramp inclined at 60.0° to the horizontal. Using energy considerations, determine how far up the incline the block moves before it stops (a) if the ramp exerts no friction force on the block and (b) if the coefficient of kinetic friction is 0.400.
The water supply of a building is fed through a main pipe 6.00 cm in diameter. A 3.00 cm diameter faucet tap, located 1.00 m above the main pipe, What is the speed at which the water leaves the faucet
If a 56 diameter circular disk is uniformly angularly accelerating at a rate of 5.0 rad/s2, What angle is subtended over that time
A block of mass m = 0.828 kg is fastened to an unstrained horizontal spring whose spring constant is k = 91.3 N/m. Find the angular frequency of the resulting oscillatory motion
A string 2.0 m long is held fixed at both ends. If a sharp blow is applied to the string at its center, What are the lowest three standing wave frequencies for this string
Consider a reference frame associated with a free falling cabin, which is moving with an acceleration of g = 9.8m/s^2. At time t=0 the cabin is at rest. Is this reference frame inertial
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 22.0 m/s at an angle 60.0 degrees; find the maximum height the ball goes above the ground
A fireman 52 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 32° above the horizontal.
A fire helicopter carries a 520-kg bucket of water at the end of a 20.0-m long cable. Flying back from a fire at a constant speed of 40.0 m/s, the cable makes an angle of 36.0° with respect to the vertical. Determine the force exerted by air resistan..
A boy shoots a BB gun horizontally at a target 15 m away. The gun is aimed directly at the center of the target, but the small metal BB hits 56 cm lower. avoid any air resistance, what was the initial speed of the BB.
A high-energy pulsed laser emits a 1.5-ns-longpulse of average power 1.8×1011W. find Determine the energy delivered in each pulse.
How much energy is required to move a600kg object from the Earth's surface to an altitude twice the Earth's radius
A vertical containery with base area measuring 14.0 cm by 17.0 cm is being filled with identical pieces of candy, each witha volume of 50.0 mm3 and a mass of 0.0204 g. Assume that the volume of the empty spaces between the candes is negligible. If th..
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