a planes average speed between two cities is 600 km/hrs. if the trip takes 2.5 its how for does the plane fly

What is a difference between a law and a hypothesis? A. A law describes how two variables affect each other, but a hypothesis only discusses one variable. B.

What type of plant boundary is associated with the formation of an ocean boundaries?

An uncharged metal sphere hangs from a nylon thread. When a positively charged glass rod is brought close to the metalsphere, the sphere is drawntoward the rod. But if the sphere touches the rod, it suddenly flies away from the rod.

At t=0, an 830-g mass at rest on the end of a horizontal spring (k = 169 N/m) is struck by a hammer which gives it an initial speed of 2.32 m/s.

If a metal ball suspended by a rod is at rest, which force is responsible for balancing the force due to gravity?

You rub a clear plastic pen with wool, and observe that a strip of invisible tape is attacted to the pen. Assuming that the pen has a negative charge, which of the following could be true? Select all that apply.: A.

Magnet a has twice the magnetic field strength of magnet b and at a certain distance pulls on magnet b with a force of 100 n. the amount of force that magnet a exerts on magnet b is

A heavy sled and a light sled, both moving horizontally with the same speed, suddenly slide onto a rough patch of snow and eventually come to a stop.

How does the force of attraction change? A) The force becomes twice as much. B) The force becomes one-half as much. C) The force becomes four times as much. D) The force becomes one-quarter as much.

How does the rotation speed vary as you move outward for a person sitting on a playground merry go round? How about the force here, how does this change?