A hydrogen atom is about 0.1 nm in diameter. How many hydrong atoms lined up side by side would make a line 1 cm long?

What is the magnitude of the kinetic frictional force

Which of the following is known as the use of a wave?

What must be photographed with an impression before it is moved or cast? A) a scale B) an evidence card C) the likely object that made the impression D) the badge of the first officer at the scene

What is the work done by gravity as a 10 kg object falls from rest at 12m to 5m?

Kinetic and potential energies of a roller coaster I'm doing a portfolio

Is electric charge a property of just electricity or is charge a property of all atoms?

Which of the gases found in the Earth's atmosphere is an important factor for weather conditions? A) oxygen B) hydrogen C) nitrogen D) water vapor

How do repeater stations improve the quality of a broadcast?

What is the total number of atoms in the following formula? CaBr2 04

The Amazon River is in Europe. True or False