The element chlorine has two naturally occurring isotopes. About 75% of chlorine isotopes are Cl35 and about 25% are Cl37. What is the average atomic mass of chlorine atoms?

A. 35.45 amu

B. 36.45 amu

C. 37.45 amu

D. 38.45 amu

If a force of 29 newtons is exerted on a 5kg ball, what is the balls acceleration

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Siven an element's atomic number and mass number, how can you tell the number of protons and neutrons in its nucleus?

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An acrobatic airplane performs a loop at an airshow. The centripetal acceleration the plane experiences is 14.7 m/s2. If it takes the pilot 45.

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A science class did an investigation to see how many breaths it took for each student to blow up a balloon. Jason blew up his balloon with the fewest breaths. Which of these might explain why Jason took fewer breaths to blow up his balloon? A.

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Suppose the gravitational force between two spheres is 100 N. If the distance between the spheres is halved, what is the new gravitational force between them?