An orange of mass 40g falls freely from a tree to the ground through a distance of 2.5m. Calculate the velocity just before it hits the ground.

What should you do when a crate is too heavy to be lifted by the pulley?

2) If two locations have the same latitude and are on a coast, what factor determines the air temperature

Which type of force can act through empty space? spring tension normal magnetism

In each cycle, a heat engine performs 710 J of work and exhausts 1480 J of heat. What is the thermal effiency?

Arrange the following parts in the order that matches the light path through a light microscope: specimen, ocular lens, objective lens, body tube, light source.

Archimedes tells us the lifting power of a balloon (how much mass it can lift) is equal to the difference between the mass of the balloon and the mass of the air it displaces.

What are the parts of a pendulum? Describe each part.

Why do space suits need to be pressurized?

Why do comets have tails?

The main characteristic of all vertebrates is the presence of a. cartilage b. a large brain c. a backbone d. an exoskeleton I got it. The answer was B