What is the mass number of an atom with 3 protons, 4 neutrons, and 3 electrons

Which of the following is a chemical change? a. ice melting b. ice being carved c. water boiling d. water breaking down into hydrogen and oxygen

The formula for calculating power is work divided by time (power = work : time). What are two ways of stating the same relationship? work = power : time, work = power * time, time = work : power, time = work * power, power = work * time

If you push a book against a wall hard enough it will not slide down even though gravity is pulling it. Use what you know about friction and newtons laws of motion to explain why the book does not fall

6. Is an object moving in uniform circular motion accelerating? Explain.

How many dots should be drawn in the lewis dot structure for an atom of sodium A) 19 B) 8 C) 4 D) 1

Consider two rocks with masses of 1 and ten kilograms. What is the relation between their inertia's? Between their masses? Between their weights on earth?

If a cart of 4 kg mass has a force of 8 newtons exerted on it, what is its acceleration?

Why does the liquid thermometer work?

What energy do electrons have when they are farther away from the nucleus?

200 525000 lololo Boat A is 10 km north of a port. Boat B is 5 km east of the same port. Boat A sails in a straight line towards boat B. Work out the bearing on which boat A sails.