Two examples of energy transformations are a lamp and a fire. the energy transformations are similar because they both

a. begin with chemical energy.
b. begin with electrical energy.
c. result in radiant energy.
d. result in mechanical energy.

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Avalue that describes how heavy an object is and is related to the force of gravity is

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.