A number has a atomic number of 9 and an atomic mass of 19 amu. how many protons and how many neutrons are present in the atom

Cara is traveling north to Jacksonville. she determines that the car is traveling at a rate of 90 kilometres per hour. if the car is traveling at a constant rate, how many kilometres will she travel in 3 minutes?

An object accelerates uniformly from 3.0 meters per second east to 25.0 per second east in 2.0 sec

Evaluate the force a skateboard exerts on you if ur mass is 60kg and you push on the skateboard with a force of 60N?

When people talk about new sources of energy, do they mean discovering new sources of energy or new ways to capture and convert energy?

What is the slope of a distance vs. time graph equal to?

How is Electric current able to flow?

In a series circuit, loads which have the same voltage dropped across them will have?.

When a brick is dropped from the roof of a house, it lands on the ground with a speed v. What will the speed at ground level be for an identical brick dropped from a roof twice as high as the first one?

The scientific method begins with recognizing a problem. The recognized problem in this scenario is, "Why is the printer in the office not working?" Choose the hypotheses that are testable and from which an experiment can be formed.

The correctly balanced equation for H2O2 → H2O + O2 is