Which of the following is NOT an example of a heating appliance? A. steam engine
B. curling iron
C. coffemaker
D. clothes iron

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

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