Which vector is the sum of the vectors shown below?
A.
B.
C.
D.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.