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A rock is tossed straight up by a velocity of 33.3 m/s. When it returns, it falls into a hole 22.5 m deep. What is the rock's velocity as it hits the bottom of the hole?
A review of the basics of circular motion: The radius of a merry-go-round is 5 meters, and it takes 12 seconds to go around once. What is the direction of the velocity of this atom
A bicycle tire with a radius of 0.42 m has a linear velocity of 2.6 m/s and an tangential acceleration of - 1.0 m/s2. What is the angular velocity of the tire
An astronaut is stuck in space with no fuel for his thrusters. He is 250 m away from his ship and only has a heavy wrench in his possession. How long does it take the astronaut to reach his ship
You measure the length of a futuristic car to be 3.50m when the car is at rest relative to you. what result do you get
If the LED emits light from a circle with diameter 10mm and is to couple to the fiber which has a50 micro meter diameter core .assume it radiates with afull cone angle 30 degree.
high-frequency sound waves exhibit less diffraction than low-frequency sound waves do. Determine the angle that locates the first minimum to either side of the central maximum in the diffraction pattern for the sound
A concrete highway is built of slabs 8.0 m long (20°C). How wide should expansion cracks between the slabs be (at 20°C) to prevent buckling if the range of temperature is -35°C to +45°C.
sinusoidal sound wave moves through a medium and is described by the displacement wave function s(x, t) = 1.84 cos(15x %u2212 885t), Determine the maximum speed of a element's oscillatory motion
A 45.0-kg girl is standing on a 133-kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is her velocity relative to the surface of ice
A projectile is launched from ground level to the top of a cliff which is 195m away and 155 m high, find the initial velocity of the projectile
A 2.20 kg object is suspended from a spring with k = 18.00 N/m. The mass is pulled 0.35 m downward from its equilibrium position and allowed to oscillate. What is the highest kinetic energy of object.
The catapult on an aircraft carrier can take an aircraft from 0 to 216 mph in 8 seconds, at which time the aircraft launches
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