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You swing a rock in a circle at a constant speed perpendicular to the ground (up and down). The speed is 3m/s, the radius is 0.75m, the mass is 0.2 kg.
Draw free body diagrams at the top and the bottom.
What is the rope's tension at the top? What about the bottom?
As the speed decreases the tension decreases, what happens at top if the tension goes to zero?
two equally charged particles held 4.0 x 10-3 m apart are released from rest. the initial acceleration of the first
In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.46 m. With what velocity did the mug leave the counter
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article X has a speed of 0.950 c and a momentum of 1.51E-18 kgm/s. What is the mass of the particle
the illumination lights in an operating room use a concave mirror to focus an image of a bright lamp onto the surgical
A positive charge of 4.80 uC is fixed in place. From a distance of 3.50 cm a particle of mass 5.00 g, How close to the fixed charge does the particle get before it comes to rest
A skier is gliding along at 2.9 on horizontal, frictionless snow. He suddenly starts down a incline. His speed at the bottom is 11. How long does it take him to reach the bottom
A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. How far down the hill does the shell strike
A light bulb is wired in series with a 122-? resistor, and they are connected across a 120.0-V source. What is the resistance of the light bulb
Krypton is a monatomic ideal gas. Suppose you have 4.0 moles of krypton at 293 K and 1 atm. How much work is involved in this process
A 54.0 kg ice skater is moving at 3.96 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.803 m around the pole. Decide the force exerted with the horizontal rope on her arm..
two 28.0 kg ice sleds that are placed a short distance apart, one directly behind the other. What are the final speeds of the two sleds
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