Which of these is necessary to make an electric circuit?

a

a battery

b

a copper wire

c

a light bulb

d

a closed path

How can groundwater sustain the generation of electricity in a geothermal power plant

A 1400kg car moving westward with a velocity of 15m/s collides with a utility pole and is brought to rest in 0.30sec. find the force exerted on the car during the collision.?

What is the difference between a negative change in position and a negative velocity?

A thin layer of oil of refractive index 1.22 is spread on the surface of water (n = 1.33), If the thickness of the oil is 275 nm, then what is the wavelength of light in air that will be predomínantly reflected from the top surface of the oil?

Two trains leave the station at the same time, one heading east and the other west. the eastbound train travels at 95 miles per hour. the westbound train travels at 75 miles per hour.

What force is responsible for your sensation of weight?

Science fiction movies that include explosion sound effects for battles in space are not scientifically correct. Why is this? A. The sound from an explosion can only be transmitted by air. B.

What is the kinetic energy of a 1,900 kg car moving at 89 km/h?

Why do we study black holes

Calculate the kinetic energy of a charging elephant if its mass is 5,000kg and it moves at 8m/s