a car was rolled up an inclined plane. it required a force of 20 kilograms to pull the car up the 50 meter length ramp to a final height of 10 meters. the car weighs 100 kilograms. what was the work accomplished using the ramp?

What will a positive and a negative charge do if they are separated from each other?

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?

What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.