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A man lifts a 2.7-kg stone vertically with his hand at a constant upward acceleration of 1.7 m/s2. What is the magnitude of the total force of the stone on the man's hand?
what must be his average speed if he is heading 30.0° south of west for the remaining 54.6 min? mi/h (b) What is his average velocity for the entire trip?
A simple pendulum of length of 0.350 m starts from rest at a maximum displacement of 10 degrees from the equilibrium position. When will the pendulum return to its starting position
Consider Iron asteroid (density 7900 kg/m^3) shaped like a cylinder 5.0 km long and 3.0 km in diameter, How much fuel is required to spin up the asteroid
The gravitational force exerted on a baseball is 2.23 N down. A pitcher throws the ball horizontally with velocity 14.5 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 169 ms. The ball starts from rest.
A projectile is fired horizontally from a gun that is 88-m above flat ground, emerging from the gun with a speed of 250m/s.
An astronaut of mass 73 kg pushes off a satellite of mass 420 kg, exerting a force of 120 N for the 0.82 s they are in contact. What is the speed of the astronaut after they have separated
A spring gun is used to launch a metal ball horizontally from a height h1=75.0cm above the floor, What is the height h2 of this taller table
The power output of a car engine running at 2900 rpm is 300 kW. How much work is done per cycle if the engine's thermal efficiency is 10.0%
A single conservative force F(x) acts on a 3.2 kg particle that moves along an x axis. What is the mechanical energy of the system
A person decides to use an old pair of eyeglasses to make someoptical instruments. What is the maximum angular magnificationhe can produce in a telescope
A fuzzy die (m = 0.2 kg) hangs from the ceiling of a car
A hydraulic lift has pistons with areas 0.40m2 and 5.95m2 , and they're at the same height. how much mass can the larger piston support
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