Astronauts in space move a toolbox from its initial position →=<15,14,−8>m to its final position →=<17,14,−1>m. The two astronauts each push on the box with a constant force. Astronaut 1 exerts a force 1→=<18,7,−12> and astronaut 2 exerts a force 2→=<16,−10,16>. Required:
What is the total work performed on the toolbox?

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

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.

There are 3 ways heat can be transferred: through solids, called , through liquids and gases , called , and through electromagnetic waves, called