Which of the following is not One of the main branches of science? A. Life science B. Space science C. Earth science D. Physical science

Why do power plants emit such a high percentage of pollutants?

Victor drew a diagram to show the life cycle of a low-mass star. Which label belongs in the area marked X?

What are two components that make up orbital motion

Which of the following is a vector quantity? A. 800 feet B. 3 km C. 400 m/s south D. 30 m/s

What device is used on a power tool's universal motor to provide a burnout-proof motor? a. Current relay b. Circuit breaker c. Thermal protector d. Fuse

Protecting his nest, a 600-g peregrine falcon rams a marauding 1.5-kg raven in midair. the falcon is moving at 20.0 m/s, and the raven at 9.00 m/s at the moment of impact.

A carousel has a radius of 1.70 m and a moment of inertia of 110 kg · m2. A girl of mass 44.0 kg is standing at the edge of the carousel, which is rotating with an angular speed of 3.40 rad/s.

A 2kg marble is moving at 3 m/s when it strikes another 4kg marble moving in the opposite direction at - 3 m/s. What will be the velocity of the 4kg marble after the collision of the 2kg marble's new velocity is - 4 m/s.

How long did it take to reload a rifle during the 18th 19 century?

Hot spots in electronic and electric circuits can be detected visually with the use of A. dataloggers. B. thermocouples C. oscilloscopes D. infrared cameras.