Two charged particles have a repulsive force of 5.7 newtons. the charge of one particle is multiplied by 8.5, and the distance between the two particles is multiplied by 5. what is the new force?

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx