When Javier touches a hot mug of tea, energy is transferred from the surface of the mug to his hand. What kind of energy is this?
nuclear
radiant
O themal
O chemical
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Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

What are atoms of the same element with varying number of neutrons