The speed of sound is greater through a solid than through a gas because the molecules in a solid are A) still. B) vibrating. C) farther apart. D) closer together.

A crate of mass 190 kg sits on a horizontal floor. The coefficient of static friction between the crate and the floor is 0.4, and the coefficient of kinetic friction is 0.36. You push the crate with a horizontal force of 500 N.

What are the minimum requirements for airplane operations under special VFR in Class D airspace at night?

What are the basic requirements for a terrestrial world to have a global magnetic field?

A particular planet has a moment of inertia of 8.26 * 10^ (36) kg⋅m^2 and a mass of 6.54 * 10^22 kg. Based on these values, what is the planet's radius? Hint: Because planets are the shape of a sphere, the moment of inertia is I = (2/5) mr^2.

What did Edwin Hubble discover about galaxies that allowed him to determine the expansion rate of the universe? A. The farther away a galaxy was, the less its light was shifted toward the red end of the spectrum. B.

What is the average speed in miles per hour of the car that traveled a total of 200 miles in 5.5 hours

A solid weighs 277.5 g in air and 212.5 g when totally immersed in the liquid of density 0.9 g / cc. Calculate the density of the solid.

Who first described the double-helix structure of DNA?

Suppose you are holding a basketball while standing still on a skateboard you are and the skateboard have a mass of 50 kg you throw the basketball with a force of 10 N what is your acceleration before and after you throw the ball

Which nitrogen base sequence is the partner of C-A-T-C-G-A? O C-A-T-C-G-A O G-T-A-G-C-T OT-G-C-T-A-G O G-C-A-T-G-T TI