A system in which No matter or energy can enter or exit from the surroundings

(matter and energy cannot enter or exit).

Three students decided to make money shoveling snow. They shoveled snow for five days. Akeo earned $162 on Friday. Cristina earned $284 on Wednesday. Oscar earned $204 on Monday. These were the maximum amounts earned by each.

Which of the following types of light can be seen by the human eye? A. radio waves B. ultraviolet waves C. gamma rays D. visible light rays

Whats the equation for speed?

What features form where two continental plate come together

Mention 3 scientists that has worked in the field of electricity

Wave can be described as A. a continuous transmission of energy from one location to the next B. The disturbance of particles in an area C. The transmission of energy through individual particles D. The motion of particles in a medium

A germ is also called a microorganism or a microbe. True False

What is 1.33Ω plus 2Ω?

As a fire truck approached Mary, the pitch of the siren got higher. once the fire truck passed and moved away, the sirens pitch got lower. this change in pitch is because in the sound waves

Find the magnitude of the sum of these two vectors