A 100 kg roller coaster car is located at the top of a hill where the height is 20 m. What is the velocity when it reaches the bottom of the hill? 5.5 m/s 11.2 m/s 16.7 m/s 19.8 m/s

In some places, hot water from underground can shoot up into the air through a hole in the ground. When this happens, the ground surrounding the water increases in temperature.

Two identical loudspeakers 2.00 m apart are emitting sound waves into a room where the speed of sound is 340 m/s. Abby is standing 5.

Distances (d) = 144m Time (t) = 12s What is the speed?

T/F all compounds are molecules but NOT all molecules are compounds.

A conical container of radius 10 ft and height 40 ft is filled to a height of 36 ft of a liquid weighing 60.6 lb divided by ft cubed.

Mohammed made a chart to list examples and nonexamples of projectile motion. Which best completes the chart? a - a football thrown in the airb - a kite flying on a stringc - a golf ball rolling off a table d - water spraying from a fountain

The difference between the third and fourth ionization energies of scandium is much larger than the difference between the third and fourth ionization energies of titanium. why?

One of the longer sides of a kite is 39 feet. one of the shorter sides is 25 feet. half the length of the shorter diagonal is 15 feet. what is the area of the kite?

The radius of the merry-go-round is 10 meters. The Chile has a mass of 40 kilograms. What is the child's moment of inertia

Of the waves listed, the one with the longest wavelength is a (n) a. X ray. b. radio wave. c. microwave. d. visible light wave.