What is the relative size and composition of the universe, a galaxy, and a solar system? Is the universe endless?

During a thunderstorm, you see a flash of lightning. five seconds later, you hear the thunder. how far away is the storm?

Can a runner on a track be accelerating even if she is running at a constant speed why or why not

Which choice defines AC and DC correctly? In AC, electrons moving in one direction. In DC, they move in one direction and then in the other direction. In DC, electrons move in only one direction.

A 5.0 ohm resistor, a 10 ohm resistor and a 15.0 ohm resistor are connected in parallel with a battery. the current through the 5.0 ohm resistor is 2.4 amperes. calculate the amount of electrical energy expended

How does reducing the volume of a gas affect its pressure if the temperature of the gas and the number of particles are constant?

Which describes a property shared by ultraviolet light and X-rays? A They are both transverse waves. B They share the same wavelength. C They contain less energy than visible light. D They both require a medium to travel through.

What is the potential energy called that is associated with objects that can be stretched

Which of the following is not a current use of radioisotopes? medical diagnosis sterilization of equipment detection of leaks in building structures light fixtures

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates

A body has translatory motion if it moves along a