A 1200-kg car accelerates it's speed from 4 m/s to 10 m/s in 3 seconds. Find the car average speed, the car acceleration, the distance traveled by, & the net force on car

Electron guns are used in X-ray tubes. The electrons are accelerated through a relatively large voltage and directed onto a metal target, producing X-rays. (a) How many electrons per second strike the target if the current is 0.

What forms when chemical reactions combine pollution with sunlight

Two identical metal spheres are placed close to one another, One is given a large negative charge. The two are then connected by a wire. Use the idea of electric force to explain what happens next

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3. What is the kinetic energy of a 1300 kg car moving at 26.3 m/s?

Which statement about how light travels is true? A Light waves need a medium to travel, and they travel at the same speed even if the light source is moving.

Explain why the car reaches a top speed even though the thrust Force remains constant at 3500N

4. A helicopter is flying at a height of 1.5km. If it has 50MJ of G. P. E., what is the mass of the helicopter?

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If you put in 10 J of work to push 1 c of charge against and electric field what will be its voltage with respect to its starting position? when released, what will be it's kinetic energy if it flies past it's starting position?