The nutritional calorie (calorie) is equivalent to 1 kilocalorie. one pound of body fat is equivalent to about 4.10 × 103 calories. express this quantity of energy in joules and kilojoules. enter your answers in scientific notation.

Explanation:

Using

4.01 × 10^3 * 4.186 = 1.72×10^4j

In KJ 17.2kj

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

statement #3 on andre"s list is false.