Light is an electromagnetic wave and travels at a speed of 3.00 * 108 m/s. the human eye is most sensitive to yellow-green light, which has a wavelength of 5.49 * 10-7 m. what is the frequency of this light?

Which of the following can be a centripetal force? a. friction c. tension b. gravity d. all of the above

A piece of hot copper of mass 4.00 kg has it's temperature decrease by 36.90 ºC when it is placed in a body of water of unknown mass. The temperature of the water is raised by 9.20 ºC.

The temperature light will come on in your vehicle when

Which of these is a contact force? A. earth's attraction of the moon B. force of a magnet that attracts paper clips C. force of a bat on a baseball

The acceleration due to gravity on the surface of Jupiter is about 2.5 times the acceleration due to gravity on Earth's surface. What would be the weight of a space probe on the surface of Jupiter? A. 2.5 times lighter than on Earth B. 6.

Acceleration is a vector quantity. O O A. True B. False

What will happen to the brightness of a string of bulbs hooked up in series when you increase the number of bulbs in the string? A. Each light in the string will get brighter. B. Each light in the string will get dimmer. C.

What are the two factors that influence the composition of beach material

Which of the following indicates that a ChemicL change has taken place? (A) a change from liquid to a gas (B) an increase in the volume of a substance (C) a change in the color of a substance (D) a change from a solid to a liquid A precipitate is a

Which of these circuit schematics has an ammeter?