An atom has 1.5x10^19 free electrons.

What is the charge of this atom.

What type of charge it carries?

At the surface of a certain planet, the gravitational acceleration g has a magnitude of 12.0 m/s2. A 24.0-kg brass ball is transported to this planet.

Differnces of similarities between light and sound

According to the Theory of Continental Drift, what did the Earth's continents look like 255 million years ago?

People could not walk without friction. What friction are we talking about here, kinetic friction or static friction? 1. The word "push" is reasonably good synonym for the word FORCE. Is "hold" a synonym for force? 2. How about "support"? 3.

What are the SI base units and their definitions?

If the photon scatters in the backward direction, what is the magnitude of the linear momentum of the electron just after the collision with the photon

A car speeds up from 15 m/s to 30 m/s in 12 seconds. What is the acceleration of the car?

These examples include learned and innate behavioral adaptations of animals. Which statement describes a learned behavioral adaptation of an animal? A. Your knee j e r k s when it is hit by a doctor. B. A dog shakes water from its fur. C.

Vitellium (Vi) has the following composition:Vi-188: 187.9122 amu; 10.861%Vi-191: 190.9047 amu; 12.428%Vi-193: 192.8938 amu; 76.711%Based on this data, what can you predict about the average atomic mass of vitellium?

if you have an experimental setup which has three unknowns, how many linearly independent equations do you need to determine the unknowns to find one unique solution?