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As the drawing shows, two thin strips of metal are bolted together at one end and have the same temperature. One is steel, and theother is aluminum. The steel strip is 0.10% longer than thealuminum strip. By how much should the temperature of the strips beincreased, so that the strips have the same length?
Suppose a satellite is in a circular orbit 5.175 Earth radii above the surface of the Earth, By how much does it have to increase its speed
Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as the volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 3.0 in. of rain in 30 min on a town of area 30 km2. What vo..
A spring scale on a rotating platform indicates that the horizontal force on a 0.606 kg mass is 1.57 N, How long does it take for the platform to make one revolution
What must be the orbital speed of a satellite in a circular orbit 800 above the surface of the earth
A projectile is launched at some angle to the horizontal with some initial speed vi, and air resistance is negligible. What is its acceleration in the horizontal direction
A horizontal spring with a spring constant of 0.6 N/m sits on a frictionless table, What is the magnitude of the elastic force on the mass just after it is released
A 250g , 30.0-cm-diameter turntable rotates on frictionless bearings at 62.0 rpm . A 22.0 g block sits at the center of the turntable. A compressed spring shoots the block radically outward along a frictionless groove in the surface of the turntable...
A 60 kg man is ice-skating due north with a velocity of 6.0 m/s when he collides with a 36 kg child. What is the direction of the child's velocity just before the collision
According to present theories of light, in some experiments light seems to be: 1)composed of particles which can neither be created nor destroyed. 2)a particle whose quantized energy depends on its velocity. 3)a wave that moves from one place to anot..
A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.2 m/s and the tension in the rope is T = 19.7 N. 5) Return to the original ..
When two sticks are laid end-to-end they cover a length of 8.32 feet. One stick is 2.90 ft longer than the other. What is the length of the shorter stick in feet.
A solid sphere of mass 0.595 kg rolls without slipping along a horizontal surface with a translational speed of 5.49 m/s. to what vertical height above the horizontal surface does the sphere rise on the incline
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