Jim quadruples the distance between himself and a sound source. What is the change in decibels of the sound he hears?

A. - 6 dB

B. - 12 dB

C. + 6 dB

D. + 12 dB

When the temperature of a gas decreases at constant volume, its a. pressure increases. b. mass increases. c. pressure decreases. d. particles move faster.

What is the relationship between electromagnetic induction and generators?

An 68 kg man on ice skates is pushing his 34 kg son, also on skates, with a force of 115 N. Together, they move across the ice steadily gaining speed.

Compare and contrast tornadoes and hurricanes

10. How is the charge on a charged object maintained?

A train is 240 meters long and travels 20 m/s. How long does it take to cross a 360-meter long bridge? S

When polarizing an object, what happens to the charges in the object? A. They swirl about like bees in a hive. B. They separate, with positive charges on one side and negative charges on the other. C.

Hailey is preparing a debate on the benefits of using synthetic polymers over natural polymers, and she wants to create a list to get started. Which should she include in her list? Check all that apply. Synthetic polymers are biodegradable.

About how long ago did our solar system start to form?

Which of these describe the composition of earths atmosphere? A) mixture B) substance C) compound