Teeth are an example of which type of simple machine?

A. lever

B. wedge

C. Inclined plane

D. pulley

A circuit contains a battery, a switch, an inductor, and a resistor connected in series. Initially, the switch is open.

How many protons are in hydrogen - 2

Which of the following is untrue of water? a. It is a non-polar molecule. b. It has strong surface tension. c. It is the only natural substance to exist as a solid, liquid, and gas at normal temperatures on Earth. d.

Which tool would a scientist use to find the mass of an object?

A new car owner wants to show her friend

A high-mass star has more "fuel" than a low-mass star. which lives longer? why?

Suppose that, while lying on a beach near the equator of a far-off planet watching the sun set over a calm ocean, you start a stopwatch just as the top of the sun disappears. you then stand, elevating your eyes by a height h = 1.

Suppose you want to know if the color of peoples hair affects how warm it can keep their heads. describe the skills you would use to conduct an experiment to test your inquiry

The mass is increased by a factor of four. What is true about the period? Choose the best answer. The period remains unchanged. The period increases by a factor of four. The period is halved. The period doubles.

What does law of conservation of mass mean?