A light ray in water is incident on a boundary with air at an angle of 22°. The refractive index of water is 1.33 and that of air is 1.00. What is the angle of refraction in air?

A) 15°

B) 22°

C) 30°

D) 45°

A portable CD player uses two 1.5 volt batteries. if the current in the CD player is 2amps, what is resistance?

In fission processes, which of the following statements is true? The total number of protons and the total number of neutrons both remain the same. The total number of protons and the total number of mass nuclei both remain the same.

Frequency division multiplexing: A. operates by statistically time slicing the signal B. operates by dividing the signal into different frequencies C. uses a codec that divides signals into different channels D.

For each group of terms, write a sentence that shows how the terms are related using position: time: motion

Define rotational speed? - short answer

A rocket initially at rest acceleration at a rate of 99.0meter/second^2. Calculate the distance covered by the rocket if it attains a final velocity of 445 meters/seconds after 4.50 seconds.

Tired of being chased by a jaguar, you set a trap. Hoping to drop it on the jaguar, you try to push a 44.0 kg stone boulder off of the edge of a cliff that slopes down at an angle of 15.0°.

Why do stars appear to move through the night sky at the rate of 15 degrees per hour?

What is a Ramjet engine?

An airplane started at a distance of 20 km from Chicago and flew directly away from it. 10 minutes later, the airplane was 55 km from Chicago. If dis the distance of the airplane from Chicago, what is Ad? A. 10 km B. 55 km C. 35 km D. 20 km