What activates a convection current starting the flow of liquid

The law of reflection states that if the angle of incidence is 78 degrees, the angle of reflection is ___ degrees.

At which moon position would a person on Earth see the entire half of the moon (full-moon) ?

Explain and give an example of newtons 3rd law of motion

How would you best define moving charges

What happens to an atom of the electrons in the outer shell are altered?

What two pieces of data indicates that uranus resides in the outer layer of the solar system.

What is acceleration? a. change in velocity/change in time b. change in distance/change in time c. change in mass/change in volume d. change in pressure/change in time

Brittany stands at rest on a skateboard. the combined mass of brittany and the skateboard is 62 kg. dave tosses a 3.7-kg pumpkin to brittany, and when she catches it, she and the skateboard begin to roll backward with a speed of 0.16 m/s.

The maximum restoring force that can be applied to the disk without breaking it is 40000 n. what is the maximum oscillation amplitude that won't rupture the disk

Which is a vector quantity speed or velocity