A small boat weighs 100N is floating on water. 1)what is the up thrust on boat and what is the weight of the boat.

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit