If a 15 kg mass accelerates at a rate of 4 m/s2, what net force acts on it?

A 15 N

B 4N

C 3.75 N

D 60 N

E. 267 N

1. Will biogas burn with a flame. why? 2. when iron is heated strongly, it becomes red hot and glass but does not burn with a flame. Why?

Frying a pancake is an example of a) conduction b) convection c) radiaton

A rocket burns fuel to produce thrust, the force that moves the rocket forward. true or false

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Hydroelectric power uses: wind water coal the sun