Why is the warm air rising while the cold air is sinking

Which of the following is the correct definition of thermal energy? A. energy resulting from the flow of charge particles, such as electrons or ions B. energy created by sound waves C.

suppose that a block is pulled 16 meters across a floor. what amount of work is done if the force used to drag the block is 22n

The photosphere is the innermost layer of the Sun's atmosphere, and it's also the A. atmospheric pressure of Jupiter. B. invisible surface of the Sun. C. nickname for the outer atmosphere of Earth. D. visible surface of the Sun.

How is the structure of a unicellular organism different than the structure of a multicellular organism? How does this effect the function

Two disks are mounted (like a merry-go-round) on low friction bearings on the same axle and can be brought together so that they couple and rotate as one unit. The first disk, with rotational inertia 3.

3. A stone is thrown upward at an angle. What happens to the horizontal component of its velocity as it rises

An arc welder provides 250A of current when operating with a voltage of 40V. What is the power required by this welder? Explain your answer.

How do you say scuba dive in spanish

a boy hears the echo of his own voice from a distance hill after 0.8 seconds. If the speed of sound in air is 340m/s, calculate the distance of the hill from the boy.

Which of the following are found in plant cells buh not animal cells?