A child is stationary on a swing. The child is given a push by his brother to start him swinging. His brother applies a steady force of 84 N over a distance of 0.25 m. Calculate the work done by this force.

If the resistance of a circuit increases, that means that the current has to

What changes depending on location in the universe, mass or weight. Explain

A 0.9 kg football is thrown with a velocity of 22.0 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.06 seconds. What is the force exerted on the receiver?

What are the six factors that affect weather

Why it is necessary to correct for the heat capacity of your calorimeter?

What is the device to break a circuit called?

A 3 column table with 5 rows labeled table A. The first column is labeled voltage in volts with entries 1.0, 5.0, 10, 20, 50. The second column is labeled current: calculated in amps with no entries.

When you stack three flashlight batteries in the same direction, you get a voltage of 3*1.5 volts = 4.5 volts. What voltage do you get if one of the batteries is turned to face in the opposite direction? a) 0 volts b) 1.5 volts c) 3 volts d) - 4.

If an ant were scaled up to the size of an elephant, the ant would be

A 4.0 kg food pack was dropped from a height of 200 m by a helicopter during flood relief operations. At what velocity will the food pack be falling halfway to the ground?