Describing convection
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complete the passage to describe convection.
during convection, heat warms up a fluid, making the fluid less dense so it begins to
it begins to causing the fluid to
as the warm fluid moves,
it begins causing the fluid to

What is the scientific definition of energy that relates to work

Idon’t quite understand this problem

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue