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A uniform electric field with a magnitude of 6450 N/C points in the positive x direction.
Part A. Find the change in electric potential energy when a +16.0-µC charge is moved 6.50 cm in the positive x direction.
Part B. Find the change in electric potential energy when a +16.0-µC charge is moved 6.50 cm in the negative x direction.
Part C. Find the change in electric potential energy when a +16.0-µC charge is moved 6.50 cm in the positive y direction.
A coin rests 13.3 cm from the center of a turntable. The coefficient of static friction among the coin and turntable surface is 0.350. The turntable starts from rest at t = 0 and rotates with a constant angular acceleration of 0.628rad/s2.
the initial state of 1.00 mol of dilute gas is p1 9.00 atm v1 1.00 l and eint1 680 j and its final state is p2 1.00
A car is traveling 23 m/s when the driver sees a child standing in the road. He takes 0.8 s to react, then steps on the brakes and slows at 6.0 m/s2. Explain how far does the car go before it stops?
Two bodies of masses 20.1 kg and 14.6 kg move along the x-axis in opposite directions with velocities of 12.2 m/s -- positive x-direction and 10.9 m/s -- negative x-direction, respectively
a transverse wave is traveling on a string. the displacement y of a particle from its equilibrium position is given by
A 200 g calorimeter contain 500 g of water at 21 degree Celsius. A 100g of ice at -20 degree Celsius is placed into the calorimeter. find the specific heat of the material of the calorimeter
a 12.0 kg mass lies at x=-80.0 cm. A 21.0 kg mass is at x= 70.0 cm. The 12.0 kg mass is not moved to a different point on the x-axis. There is not a zero net force on the 10.0 kg mass. What is the new location of the 12.0 kg mass
According to the Guinness Book of World Records (1990 edition, p. 169), the highest rotary speed ever attained was 2010 m/s (4500 mph). The rotating rod was 15 cm (5.9 in) long. Imagine the speed quoted is that of the end of the rod.
A 70 kilogram trunk is pushed 4.2 meter at constant speed up a 30 degree incline by a constant horizontal force. Obtain the work done by the applied horizontal force
It is desired to build a heat pump that has an output temperature of 31 °C. Calculate the maximum coefficient of performance for the pump when the input source is ground water at 8.1 °C
a 1.5 kg box moves back and forth on a horizontal frictionless surface between two different springs. by how much will the box compress the weaker spring
A police car at rest, is passed by a speeder traveling at constant speed of 110 km/hr, take off in hot pursuit accelerating at 3.6 m/s2. How far has the police car travelled to catch the speeder
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