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?

An ostrich can run 10 kilometers in 15 minutes. What is it's speed in kilometers per hour.

What is speed in a particular direction is called?

In the Bohr model, as it is known today, the electron is imagined to move in a circular orbit about a stationary proton.

A friend tells you that a scientific law cannot be changed. State whether or not your friend is correct and then briefly explain your answer.

What is wind energy? a. any natural resource that cannot be replaced in a reasonable amount of time b. kinetic energy caused by the movement of particles at the atomic level of which the sun is the ultimate source on the planet c.

Identify the possible source of earth's magnetic field

A nurse applies a horizontal force of 147 N on a bed that has a mass of 152 kg, The magnitude of the normal force acting on the bed is .967 N 5.00 N 1440 N 1490 N

What do scientists use to look at cells, tissues, and small organisms to see how their biological processes differ in space? vibration flybys airlock microgravity

Which of the following is a product of respiration resulting from the breaking of carbon-carbon bonds

A wagon is accelerating down a hill. which statement is true?