2. The nucleus holds two particles:

a. proton and electron

b. proton and neutron

c. neutron and electron

Attempting to move a large rock useing a long lever will the work you do on the lever be greater than the same as or less than the work done by the lever on the rock?

What type of blood does the night side of the heart receive?

A surfer is able to stay on the surfboard as she rides the waves. Which explains the force (s) that enable her to do this? A. The force of gravity pulls the surfer into the surfboard with enough force to hold her on the surfboard. B.

A paper weight is dropped from the roof of a block of multi story flats. Each storey being 3 metre high. It passes the ceiling of the 20th storeys at 30m/sec. If g = 10.0m/sec^2, How many storeys does the flat have.

A rocket moves through outer space at 11,000 m/s. At this rate, how much time would be required to travel the distance from Earth to Moon, which is 380,000 km?

A rocket moves away from the surface of the earth. As the distance r from the center of the planet increases, what happens to the force of gravity on the rocket?

Why am i not floating?

A person holds onto an object for 2 minutes, but doesn't move the object. Is work done on the object?

Warming in front of a fire while camping is an example of? A. Conduction B. Convection C. Radiation

In which medium would light travel the fastest? Question 21 options: a. across a room b. in a swimming pool c. through outer space d. through a railroad track