A wave is moving at the rate of 40 cm/s. Its wavelength is 8 cm.

What is the frequency of the wave?

5 Hz

320 cm

320 Hz

5 cm

How much heat is needed to raise the temperature of 9g of water by 17oC?

Henry was given this cool toy for his birthday; he can use it to tell how fast someone is going at that moment in time. the toy must calculate the persons ... average velocity average speed acceleration instantaneous speed

Which would you expect to have the greatest amount of friction? a - a smooth surface on a smooth surface b-a smooth surface on a rough surface c-a rough surface and air d-a rough surface on a rough surface

An antacid blank excess stomach acid.

Do shooting stars ever land on a planet

A train leaves the train station at noon and travels at a constant speed of vt = 50 mi/hr on a straight track. 2 hr later, a car leaves the same train station and travels in the same direction at vc = 70 mi/hr on a road next to the train track.

The radius of the sun is about 700,000,000 meters, the radius of the planet Venus is about 6,000,000 meters, and the radius of the supergiant star Betelheuse is about 500,000,000,000 meters. Which of these statements is true (t) or false (f) ? A.

A cat starded at a distance of 5.4 m from your front door and began walking directly away from it. 2 minutes later, the cat was 9.3 m from your door if d is distance of the cat from the door what is d

A. True b. False: If you lose engine power or control and cannot get completely off the road, turn on your emergency flashers.

Explain the difference between charging by induction and charging by contact.