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A skier is accelerating down a 30 degree hill at 2.00 m/s squared.
a) what is vertical component of her acceleration?
b) how long will it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 400 m (meters)?
A diving board oscillates with simple harmonic motion of frequency 3.36 cycles per second, What is the maximum amplitude with which the end of the board can vibrate in order that the pebble placed there not lose contact with the board during oscillat..
Water is lifted out of a well 22.0m deep by a motor rated at 1.40hp .Assuming efficiency 90% , how many kilograms of water can be lifted in 1 min
If a four-engine jet accelerates down the runway at 2 m/s2 and one of the jet engines fails, explain how much acceleration will the other three produce?
The time-varying current in an LC circuit where C = 11.9 µF is given by i(t) = (1.25 A) sin (1310t), where t is in seconds. What is the total energy of the circuit
A charge of +1 coulombs is placed at the 0 cm mark of a meter stick. A charge of +4 coulombs is placed at the 100 cm mark of the similar meter stick.
A system consists of a ball of mass M2 and a uniform rod of mass M1 and length d. Derive an expression for the angular momentum of the rod about point P before the collision
Archimedes purportedly used his principle to verify that the king's crown was pure gold by weighing the crown while it was submerged in water.
A bicycle slows down uniformly from v0 = 8.40 m/s to rest over a distance of 115m. Each wheel and tire has an overall diameter of 68.0 cm. determine the angular acceleration of the wheel
A rocket of total mass 3180 KG is travelling in outer space with a velocity of 115 m/s. To alter its course by 35.0°, how much mass must be expelled
It rolls at a steady speed for 1.9 s, then one wheel begins to stick. The train comes to a stop 6.0 m from its starting point. Illustrate what is the train's acceleration after its wheel begins to stick?
Calculate the force of gravity on the same 1-kg mass if it were is 6.4 x106 m above the earth’s surface (that is, if it were 2 Earth radii from the Earth’s center)
A block of metal is placed on a top of a half-sphere made of ice. The block slides on the half-shpere down to a height (h) above the ground, What is the force exerted by the half-sphere on the block
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