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A stone is projected at a cliff of height h with initial velocity of 42 m/s directed 60 degrees above the horizon. The stone strikes the cliff at point A, 5.50 s after launching. Find: (a) h, the height of the cliff. (b) The maximum height H reached by the stone. (c) The velocity (in component form) of the stone as it strikes the cliff. (d) The angle the final velocity makes with the horizontal at point A on the cliff.
An object with a mass of 41.0 g is moving uniformly with a velocity of 37.0 m/s along the positive x-axis. What is the velocity of the first particle, in the zero momentum frame, after an elastic collision
Then a second inductance L2 =10 mH is connected in parallel with L1. Find out (a) the current that the generator delivers to L1 and (b) to the parallel combination.
A solid sphere and a solid disk of the same mass and radius are rolling wihtout slipping at the same speed. What is the ratio of their angular momentum
A large wooden turntable in the shape of a flat disk has a radius of 2.05m and a total mass of 130kg. Find the angular speed of the turntable after the parachutist lands
A 150-g aluminum cup contains 900 g of water in thermal equilibrium with the cup at 85°C. The combination of cup and water is cooled uniformly so that the temperature decreases by 1.6°C per minute. At what rate is energy being removed? Express your a..
A jogger accelerates from rest to 4.67 m/s in 3.48 s. A car accelerates from 19.0 to 32.7 m/s also in 3.48 s. Find the magnitude of the acceleration of the jogger
A cup with mass 4.1 kg has been sitting in a room with a temperature of 23 oC for a long time. Calculate the specific heat of the cup
what is work done on package by friction.
A hedgehog pushes a rock of 1.9 kg up a ramp, which is tilted at 19.5 degrees to horizontal, How much work is done by friction
The wheel of a car has a radius of 0.360 m. The engine of the car applies a torque of 426 N·m to this wheel, What is the magnitude of the static frictional force
The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 36--diameter loop-the-loop. What is the car's speed at the top?
A square loop of wire consisting of a single turn is perpendicular to a uniform magnetic field. The square loop is then re-formed into a circular loop, which also consists of a single turn and is also perpendicular to the same magnetic field.
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