Is Mars a gas planet or a rocky planet?

A motor with an operating resistance of 32 ohms is connected to a voltage source. the current in the circuit is 3.8 a. what is the voltage of the source?

Two golf balls are thrown with the same speed off the top of a large bridge at the same time. ball a is thrown straight downward, and ball b is thrown horizontally off the bridge. which ball hits the ground first? a. ball a b. ball b c.

Electromagnetic waves can carry more data at higher frequencies. Why would a scientist opt to transmit data at a lower frequency instead? What are the limitations of sending information using electromagnetic waves?

A 360-nm thick oil film floats on the surface of a pool of water. the indices of refraction of the oil and the water are 1.5 and 1.33, respectively.

spheres 1 and 2 both carry positive charge and are connected by insulating strings to a ceiling. when the two spheres hang in equilibrium, they hang at the same height, but sphere 1's string is more vertical.

The direction of the magnetic field is determined by which of the following? A. energy of the current B. magnetic domain C. magnetic force D. direction of the current

A ship is traveling at 154 m/s and accelerates at a rate of 1.80 m/s^2 for 1 minute. What will its speed be after that minute? Calculate the answer in both meters per second and kilometers per hour.

Gerry is looking at salt under a powerful microscope and notice a crystalline structure. what can be known about the salt sample that Gerry is looking at

The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.

Imagine standing on a bathroom scale and reading your weight. now lift one foot and read your weight again. does the scale read more, less or the same weight when you are standing on one foot?