What is a medium and why do waves travel through them?

A scientist is using a telescope to detect light waves to determine the difference between two objects what is a likely pair of objects scientist could be studying? A. two oranges growing on the same tree B. Two cells in a fish's scale C.

In the morning, if you walk through a grassy lawn or field, quite often your feet will get very wet. What is the liquid generally called, and how does this happen if it hasn't rained anytime recently?

If net force of 25 n is exerted over distance of m to the right on 2 kg mass initially at rest and moved it what is final velocity

Electric fields and magnetic fields are both present near a charged atom. True or false?

The brick wall (of thermal conductivity 0.41 W/m · ◦ C) of a building has dimensions of 5.9 m by 4 m and is 16 cm thick. How much heat flows through the wall in a 17.

A 5.90-g lead bullet traveling at 410 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in

How do you scientists determine the number of neutrons in an isotope of an atom?

Why is energy efficiency important to society's need to be efficient with energy usage?

A wave has a wavelength of 9 mm and a frequency of 14 hertz. What is its speed?

Where would you weigh the most? Mars Pluto Earth The Sun The moon