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Two objects with masses of 3.70kg and 7.80kg are connected by a light string that passes over a frictionless pulley.
Determine the tension in the string. (magnitude only N)
Determine the acceleration of each object. (magnitude only m/s2)
Determine the distance each object will move in the first second of motion if both objects staart start from rest.
A 15 kg lawn mower is pushed with a constant force of 30.0 N at an angle of 37.0 degrees. What is the acceleration of the lawn mower
A charge of 18.0?C is held fixed at the origin. If a -6.50?C charge with a mass of 3.00g is released from rest at the position (0.925 m, 1.17 m), what is its speed when it is halfway to the origin
It takes the elevator in a skyscraper 4.5s to reach its cruising speed of 12m/s. What is the passenger's weight before the elevator starts moving
A tungsten target is struck by electrons that have been accelerated from rest through a 20.0-kV potential difference
Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. Illustrate what is the change in the car's kinetic energy, ΔKE = KEf - KE0, fro..
Two small plastic balls hang from threads of negligible mass. Each ball has a mass of 0.57 g and a charge of magnitude q. Find the magnitude of the electric force acting on the ball
Suppose a manufacturing plant has an average sound intensity level of 97.0 dB created by 25 identical machines. Find the total intensity created by all the machines
Consider a rocket-powered hockey puck, and assume the rocket produces a constant acceleration when the rocket is on. Determine the impact location and the impact speed of the puck
Three point charges, -6.05 10-9 C, -9.40 10-9 C, and +7.25 10-9 C, are fixed at different positions on a circle. What is the radius of the circle
A copper rod of length 0.78 m is lying on a frictionless table (see the drawing). What must be the direction of the current in the copper rod
A 50 g aluminum calorimeter contains wter at a temperature of 26 C. When 75 gof lead at a temperature of 85 C is dropped into the calorimeter, How much water was in the calorimeter can
On a cold winter's day heat leaks slowly out of a house at the rate of 25.0kW. find the rate of entropy increase
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