How can i tell one element from another one?

What's the difference between a 2.0 and a 3.0 earthquake on the Richter scale?

A net force of 400 Newtons acts on a 50kg mass. What is its acceleration? A 450 m/s/s B 8 m/s/s C20,000 m/s/s D 350 m/s/s E. 125 m/s/s

Adding enough what to a system can change the substances in a system

quzilet The Magnet Recognition Program for health care organizations is based on fourteen forces of magnetism related to five magnet model components. Which force of magnetism is assessed to review the structural empowerment of the organization?

In what ways is climate controlled by the sun and the water cycle?

A particle travels 15 times around a 10-cm radius circle in 42 seconds. what is the average speed (in m/s) of the particle?

Where are the magnetic fields stronger near a bar magnet? A) Top B) Center C) Ends D) Bottom

You pull a simple pendulum of length 0.225m to the side through an angle of 3.50∘ and release it. Part A How much time does it take the pendulum bob to reach its highest speed? Take free fall acceleration to be 9.80 m/s^2.

What is the velocity of a wave having a frequency of 25 Hz and a wavelength of 10m

What is the force on a 1-kg ball that is falling freely due to the pull of gravity