Sound is repeated near hills ...

Why?

What is the mass of an object that creates 33,750 joules of energy by traveling at 30 meters a second?

Which is a homogeneous mixture? A air B pizza C jar of mixed nuts D salad dressing

Select all that apply. What characteristics of nuclear energy make it desirable? emits minimal atmospheric pollution uses uranium, which is readily available and abundant does not require great quantities of fuel does not produce an ecological

What type of change occurs you digest your food?

A submarine is carefully navigating its way to the seafloor. It sends out "pings"-a radar wave-as it descends to keep track of its location in relation to the ground. The wavelength of the radar as it leaves the ship is 3 cm.

Which of these statements best describes a similarity between the two galaxies? Both have elongated centers. Both have centers shaped like bars. Both change their shape from time to time. Both are held together by gravitational forces.

The part of the earth system that includes earths solid, rocky, outer layer is the

A child pushes horizontally on a box of mass m which moves with constant speed v across a horizontal floor. The coefficient of friction between the box and the floor is μ. At what rate does the child do work on the box?

What does offset mean

How far can a person run in 15 minutes if he or she runs at an average speed of 16 kilometers / hours?