How do refracting and reflecting telescopes use convex lenses and mirrors

Why do radio telescopes convert radio waves to electrical signals for analysis

what is physical fitness? 1) the improvement of the body through inteninoal movement 2) the speed at which the body moves during exersize 3) the ability of the body to function of the body to function efficiently during exercise D) the preformence

Which of the following is contained in a shovel? inclined plane and a wedge wedge and lever wedge and pulley pulley and inclined plane

An inelastic collision is one in which: kinetic energy before the collision equals kinetic energy after the collision. kinetic energy after the collision is zero. kinetic energy before the collision is less than kinetic energy after the collision.

A uniform wire is cut into 4 segments. Each segment is twice as long as the earlier segment. If the shortest segment has a resistance of 4 ohm, find the resistance of original wire.

Which of the following represents a chemical change? rocks being smoothed by rapid water movement the pink color of a rose iron's attraction to a magnet decomposition of stone due to acid rain

How many grams of CO2 are in 3 mol of the compound?

o keep yourself warm in the winter, you heat a solid metal ball and place it on a stand in the center of your room. The ball has a radius of 20.0 cm and an emissivity of 0.790.

How many brothers and sisters did beethoven have?

Which of the following statements about igneous rocks is correct?