13. Sound waves can't travel through

A. a solid.

B. a liquid.

C. an elastic material.

D. a vacuum.

what did the development of brain imaging technology allow researchers to do?

The effectiveness of an optical lens is attributed to: diffraction reflection refraction interference

Forces cause changes to the motion of objects. Name a force and describe two changes it makes.

Liquid methyl ethyl ketone (mek) flows through a pipe with an inner diameter of 2.067 inches at an average velocity of 0.48 ft/s. at the fluid temperature of 20°c the density of liquid mek is 0.805 g/cm3 and the viscosity is 0.

Which of these statements accurately describes monomers? Monomers are macromolecules. Monomers contain double bonds. Monomers are made of repeating units. Monomers contain bonds between metals.

A 62 pound box is on an incline. Determine the minimum force P that would result in the box starting to slide up the incline. (include units with answer)

During a collision with another car, the occupants of a minivan initially travelling at 4.0 m/s come to a complete stop in 0.5 s. What was the acceleration of the occupants of the minivan? a) 8.0 m/s2 b) - 8.0 m/s2 c) 2.0 m/s2 d) - 2.0 m/s2

A system dissipates 12 J of heat into the surroundings; meanwhile, 28 J of work is done on the system.

Charlotte, a 60.0-kg skin diver, shoots a 2.0-kg spear with a speed of 15 m/s at a fish who darts quickly away without getting hit.

All objects are attracted to each other by the force of a. weight. b. mass. c. inertia. d. gravity.