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Joe pushes down the length of the handle of a 12.6 kg lawn spreader. The handle makes an angle of 47 degrees with the horizontal. Joe wishes to accelerate the spreader from rest to 1.34 m/s in 1.7 s. What force must Joe apply to the handle?
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You see lightning strike a mountaintop, and 2.98 s later you hear the accompanying thunder. How far away is the mountaintop
A 0.300kg block is moving to the right along a horizontal frictionless surface with a speed of 0.600 m/s. Find the final velocity of each block after the collision
A wheel is rotating freely at angular speed 920 rev/min on a shaft whose rotational inertia is negligible. What fraction of the original rotational kinetic energy is lost
Suppose the player has a mass of 0.658 kg. How long might the player operate on the energy required to lift it through a height of 1.17 m.
A 20-m long spacecraft is passing by earth at 0.8c. What is the length of the spacecraft measured within the moving (spacecraft) referencee frame
Calculate the speed of an 8.5 × 104 kg airliner with a kinetic energy of 1.2 × 109 J
What is the frictional force
Water flowing through a hose at 4.0 m/s fills a 800L child's wading pool in 7.0min. What is the diameter in cm of the hose
A uniform narrow tube 1.80m long is open at both ends. It resonates at two successive harmonics of frequencies 279Hz, What is the speed of sound in the gas in the tube
An ac generator has a frequency of 4.80 kHz and produces a current of 0.0400 A in a series circuit that contains only a 231 resistor, Obtain the voltage of the generator
A 250-g ball collides with a wall. The ball's velocity and the force exerted on the ball by the wall. What is v_{{rm{f}}x}, ball's rebound velocity.
Two current-carrying wires are exactly parallel to one another and both carry 3.5 A of current, What is the direction of the magnetic force caused by wire 2 on wire 1
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