1. What is the speed of sound in air that has a temperature of 90.0 °C?

What characterizes a post-industrial society? a) The number of people living in urban areas is between 95 to 100 percent. b) There is a balance between the numbers of people engaged in agriculture and in manufacturing.

Define temperature define absolute zero

How does the composition of a mixture differ from the composition of a compound containing hydrogen and oxygen

When a glacier moves, rocks and sediments in the bottom of the glacier scrape against the ground. This creates grooves known as A. lateral moraines. B. glacial till. C. truncated spurs. D. glacial striations

The direction of the force on a current-carrying wire in a magnetic field is

A wave with a frequency of 30 Hz has a wavelength of 40.5 m. How fast is the wave traveling?

A soccer ball is sitting in the middle of a soccer field during a game. When the referee blows his whistle, one of the players runs toward the ball and kicks it as hard as he can.

A body with v=20m/s changes its speed to 28m/s in 2sec. its acceleration will be

Charge: A piece of plastic has a net charge of + 2.00 μC. How many more protons than electrons does this piece of plastic have? (e = 1.60 * 10-19 C)

How much heat is needed to raise the temperature of 6g of water by 18oC?