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A 65 kg person throws a .045 kg snowball forward with a speed of 30 m/s. a second person with a mass of 60 kg catches the snowball. both people are on skates. the first person is initially moving forward with a speed of 2.50 m/s and the second person is initially at rest. Chose the best description of what would happen to the first skater if they had initially been at rest before throwing the snowball (again, disregard and friction between the skates and the ice). options: The skater stays at rest. The skater moves in the same direction as the snowball with a speed of 0.9 m/s. The skater moves in the opposite direction as the snowball with a speed of 2.09 cm/s. The skater moves in the opposite direction as the snowball with a speed of 1.50 m/s.
The ropes in the figure are each wrapped around a cylinder, and the two cylinders are fastened together. What is the angular acceleration of the cylinders
At 20°C, a brass cube has an edge length of 35 cm. What is the increase in the cube's surface area when it is heated from 20°C to 81°C
What speed would Michelson have computed for Earth's motion through the ether had the experiment seen a shift of one fringe
A block of mass=0.750kg is fastened to an unstrained horizontal spring whose spring constant is k=65.0N/m. The block is given a displacment of 0.220m and then released from the rest.
A 16.5 kg gold bar at 26.0°C is placed in a large, insulated 0.800 kg glass container at 15.0°C with 2.00 kg of water at 25.0°C
Using your value for n, find the speed of light inside the lucite rectangle. what will be the wavelength of the light inside the material
A total of 2.83·106 electrons are placed on an initially uncharged wire of length 1.07 m. What is the magnitude of the acceleration of a proton
The electric field everywhere on the surface of a charged sphere of radius 0.180 m has a magnitude of 500 N/C, What is the net charge on the sphere
A 100.0 kg bungee jumper steps off a bridge with a light bungee cord tied to her and to the bridge. The unstretched length of the cord is 13.0 m. She reaches the bottom of her motion 38.0 m below the bridge before bouncing back. Her motion can be ..
The box is taken up a mountain where the air pressure outside the box is 8.00 104 Pa. The inside of the box is completely evacuated. Elucidate the magnitude of the force required to pull the lid off the box?
14 electrons are placed on a metal sphere. if the potential of the sphere is -38 V, what is the radius?
A charged particle moving with speed, v, enters a region containing a uniform magnetic field, Starting from Newton's second law, derive the formula for the radius of the particle's orbit in terms of its mass, m, speed, v, and the magnetic field, B
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