Alexander Graham Bell used an electrical wire to

a. transmit radio waves.

c. transfer power to machines.

b. build a better light bulb.

d. send voices over long distances.

Describe how the amount of voltage applied to a circuit affects current flow.

4. What information does the atomic number of an element give us?

Which industry was an oligopoly in the United States? a. agriculture industry c. steel industry b. shipping industry d. coal industry

An echocardiogram uses 4.4 mhz ultrasound to measure blood flow in the aorta. the blood is moving away from the probe at 1.5 m/s.

Assume you live in a Einsteinian universe with the speed of light being only 60 k / hr. First you see a bicyclist at rest and later you see the same cyclist moving at 55 km/hr. Describe quantities that would change.

An unknown material has a mass of 5.61 kg, and its temperature increases by 0.124°C when 1320 J of heat are added. What is the specific heat of the material? (Unit = J / (kg*C))

What is the speed of a 1.0 * 103-kilogram car that has a momentum of 2.0 * 104 kilogram∙meters per second east?

4. How does an increase in orbital radius affect average orbital speed

What happens when a plastic lid sprinkled with iron filings is placed over a magnet?

A stuntman drives a car with a mass of 1500 kg on a drawbridge. The car accelerates with a constant force of 10,000 N. While he is driving, the drawbridge is raised to an incline of 30°.