What do you think the egg shell is made from? Why can you draw this conclusion? Which materials reacted immediately with the acid? What did they have in common?
Which samples, if any, took more time to react with the acid? Why do you think they took more time?
Which samples, if any, did not react with the acid? Why do you think they did not react?
Why was it necessary to use a control? plz someone do it

How much force was applied to an object if was moved 2 meters and the work done on the object was 8 joules? a. 0.25 n b. 4 n c. 6 n d. 16 n

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.

Which system of units is used by only a small number of countries in the world, including the u. s.