Which material is denser?

glass, aluminum, or glass

The relationship between frequency, wavelength, and speed holds for light waves because A. light travels slower in a vacuum than in air B. all forms of electromagnetic radiation travel at a single speed in a vacuum C.

Explain why a black asphalt parking lot feels hotter to your bare feet then a concrete sidewalk does and describe how the heat is transferred to your feet

What color do you see when all colors of light are reflected

Which body system is responsible for bringing oxygen into the body? The digestive system The respiratory system The circulatory system The musculoskeletal system

What changes would result in a decrease in the gravitational force between two objects? Check all that apply.

Why did the chicken cross the road.

A 98.1 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.69 rad/s. A monkey drops a 9.29 kg bunch of bananas vertically onto the platform.

7. A type of non-renewable energy would be: O wind O petroleum O water solar

A refrigerator is a system. The energy input into the refrigerator system (in the form of electricity) is the same as the amount of energy output from the system. Which of the following best describes the energy output of the system?

A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.