Anna heated 15 g of substance a to obtain 5 g of substance b, 4 g of substance c, and a certain amount of substance d. which statement is correct?
the mass of substance d was 10 g less than the mass of substance a.
the mass of substance d was 1 g greater than the mass of substance b.
the mass of substance a was equal to the total mass of substance c and substance d.
the mass of substance a was equal to the total mass of substance b and substance d.

From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.

An ascending elevator, hanging from a cable, is coming to a stop. part a part complete identify all forces acting on the elevator from the list below. select all that apply. select all that apply. kinetic friction normal force tension weight static friction submitprevious answers correct part b draw a free-body diagram of the object. draw the vectors starting at the black dot. the location and orientation of the vectors will be graded. the exact length of your vectors will not be graded but the relative length of one to the other will be graded.