Which of the following do not make their own energy through nuclear fusion? Select all that apply.

A. giant star

B. protostar

C. dwarf star

D. black hole

E. neutron star

F. main sequence star

What process allows radios to receive signals even when they are not in line of a tower? a. Refraction c. Diffraction b. Reflection d. Amplification

How thick is the Earth's surface?

George created an advertisement for a retail store that sold clothes. He added a discount in the form of a coupon that the customers had to redeem at the store within the next week. Which advertising feature did George use in his advertisement?

What do we mean by the event horizon of a black hole?

How do you make a tissue dance

Which is an example of convection

Before radiant energy can be converted to thermal energy, it must be changed to what

At this radius, what is the magnitude of the net force that maintains circular motion exerted on the pilot by the seat belts, the friction against the seat, and so forth? Answer in units of N.

How to change time into temperature

What is a homopolar motor?)