When the period of an electromagnetic wave becomes greater, its frequency

a. increases.

b. decreases.

c. stays the same.

d. it depends on the type of electromagnetic wav

An ideal gas is at 29 ∘C. The gas is cooled, reducing the thermal energy by 10.0%. What is the new temp?

Suppose that the period of a particular ideal mass-spring system is 5 s. What would be the period of the system if the mass were two times the original mass?

Astronomers have discovered a new planet called "Xandar" beyond the orbit of Pluto (No, not really but I need a fake planet for this problem!). It has a satellite called "Jim" that orbits with a period of 12.9 days at a distance of 72,600 km.

A skater extends her arms horizontally, holding a 5-kg mass in each hand. She is rotating about a vertical axis with an angular velocity of one revolution per second.

A block is given an initial velocity up an inclined plane with friction. The block comes to rest before the end of the inclined plane. What is the sign of the work done by gravity as the block comes to rest on the inclined plane?

A construction foreman exerts 1300 Newtons of force trying to move a 1200-kg block of concrete. How many Joules of work does he perform?

It takes 9 seconds for a 10 newton force to move an object 4 meters to the right. What are the direction and magnitude of this force? A. The direction is to the right. The magnitude is 9 seconds. B. The direction is 4 meters.

West of a city, a certain eastbound route is straight and makes a steep descent toward the city. The highway has a 14% grade, which means that its slope is - 14 100.

If animal DNA is injected into a human, what would happen?

Give one word which means the same as 'moving with a negative acceleration '