Two colours of light which mix to make white light are called

a) primary colours

b) secondry colous

c) complementary colours

d) dye

One way to monitor global warming is to measure the average temperature of the ocean. Researchers are doing this by measuring the time it takes sound pulses to travel underwater over large distances.

What hydraulic device creates a torque that can rotate a shaft?

Which type of field is present near a moving electric charge

Why is it important to break down a long-term physical fitness goals into short-term physical fitness goals?

What is the speed of a vehicle that moves 40 meters in 2 seconds

What are two lines of evidence you could use to indicate that the phases of the Moon are not caused by the shadow of Earth falling on the Moon?

Which moment corresponds to the maximum potential energy of the system?

Jo lifts a 330 N cement block 3.6 m (using a system of pulleys) by pulling 16 m of rope with a force of 121 N. a. What is the mechanical advantage of the pulley system? b. What is the work input? c. What is the work output? d.

What is peristalsis

What are three well known American mountains