Atire at 21 c has a pressure of .82 atm. it’s temperature decreases to -3.5 c. if there is no volume change in the tire what is the pressure after the temperature change?

You 4. you have been swimming in your neighbor’s pool for an hour. the relative humidity of the air is 30 percent. will you feel warm or cool when you step out of the pool? explain your answer.

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

The number at the end of an isotope’s name is the number.