If a child is dragging his 2 kg toy along the ground with an applied force of 10N as pictured below, and the frictional force is 1N, what is
the acceleration of the toy?
60

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation

By what primary heat transfer mechanism does the sun warm the earth?

What is part of a line has one endpoint and continues in one direction?