Is it 100% sur than electron have negative charg and proton have pasitive?

1. A psychologist exposes several lab animals to an enriched environment (toys to play with) and then compares their ability to run mazes to that of control animals. a). Hypothesis: b). Independent variable: c). Dependent variable:

Calculate the rate constant for the first-order decay of 24na (t1/2 = 14.7 h).

Which of the following is an example of velocity? 10 m/s 10 10 m/s to the right 10 m to the right

Explain why solar eclipses do not occur every time the moon revolves around earth

How many places are there for electrons in the innermost shell of an atom? A. 2 B. 4 C. 8 D. 12

A force of 6.0 newtons changes the momentum of a moving object by 3.0 kilogramâ¢meters per second. how long did the force act on the mass?

What happens if you drop out of navy seals?

X-component is 5, and y-component is 4. what is the angle of vector?

An open train car, with a mass of 2150 kg, coasts along a horizontal track at the speed 2.83 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 2.95 s at the rate of 481 kg/s.

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. Which statement is true for this reaction?