PLEASE HELP AND HURRY IM FOING A TEST Right now Gamma rays and X-rays are both high-energy forms of radiation that can penetrate the
skin. X-rays, however, are the chosen form of radiation used to take pictures inside our
bodies. Which of the following is a reasonable explanation for the use of X-rays over
gamma rays when taking images?

A The energy and intensity of X-rays can be controlled.|
B X-rays have higher energy than gamma rays.
C The energy and intensity of gamma rays can be controlled.
D Gamma rays have higher energy than X-rays.

What happens to the velocity of the car when the upward pull of the cable is greater than the downward pull of gravity as the car rises toward the top?

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

Acup of coffee sits on the dashboard of an automobile. the car goes around a sharp curve. even though you hold the cup still, coffee still splashes out. this can best be explained due to a) density. b) friction. c) gravity. d) inertia.