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Q. Two identical 30 {rm g} particles each carry 3 {rm mu C} of charge. One is held fixed, and the other is located 1 {rm mm} away and released. Find the speed of the moving charge when it's 1{rm cm} from the fixed charge.
Q. A 50m long train begins uniform acceleration from rest. The front of the train has a speed of 25m/s when it passes a railway worker who is standing 120m from where the front of the train started.
How do I make an equation for this so I can differentiate it?
A person walks 36° north of east for 2.36 km. How far would another person walk due north and due east to arrive at the similar location.
At time 0 a grinding wheel has an angular velocity of 30. It has a constant angular acceleration of 35 until a circuit breaker trips at time = 2.20. From then on, wheel turns through an angle of 428 as it coasts to a stop at a constant angular dec..
A person lifts a 950N box by pushing it up an incline. If the person exerts a force of 350N along the incline, what is the mechanical advantage of incline.
An asteroid is discovered heading straight toward Earth at 14km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 {rm min}, after which asteroid is moving at 26^circ to its original path at a..
A train is travelling up a 4.8^circ incline at a speed of 3.25m/s while the last car breaks free and begins to coast without friction.
Illustrate the cause of the components accelerating from rest down the conveyor.
The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. The mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain by the block and tackle pulley system. What is the work done..
Tam walks with the velocity of 1.8 m/s west. He does so while riding on a conveyor belt that moves at a velocity of 0.7 m/s west. What is Tam's velocity.
A uniform magnetic field B is confined to the square region with side of length 2L.
What is the maximum speed of the ball.
If light enters the window from outside at 23.0° to the normal, at what angle to normal does it exit the window on the inside.
what time delay Delta t is necessary. A boxcar of mass 600 tons at rest becomes uncoupled on a 5.00 grade. If the track is considered to be frictionless, what speed does the boxcar have after 15 seconds.
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