In which section of a nuclear reactor does nuclear fission occur?
a.
reactor vessel
b.
heat exchanger
c.
condenser
d.
cooling tower

Newton's law of universal gravitation states that the force f between two masses, m1 and m2, is given below, where g is a constant and d is the distance between the masses. find an equation that gives an instantaneous rate of change of f with respect to d. (assume m1 and m2 represent moving points.)

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)