A stone is tied to a 0.85-meter cord. it is swung in a circle at a constant rate of 6.0 m/s. what is the centripetal acceleration of the stone? 42 m/s2 7.1 m/s2 0.14 m/s2 5.1 m/s2

What happens when two forces act in the same direction? A. They cancel each other out. B. The stronger one prevails. C. Their strengths are added. D. Their sum divided by two is the total force.

Sodium has an atomic number of 38 and a mass number of 88 how many neutrons are in one atom of strontium 88 50 38 126

Definee effective nuclear charge

What is the mole ratio of NaOH to Al (OH) 3

10. Which kind of resource takes months, years, or decades to renew? a. Geothermal energy b. Fresh water c. Natural gas d. Minerals

200 lb/in" = ? tons/ft?

What variable is not used in the combined gas law

What is bromic acid

Which answer choice best explains why atoms of carbon-14 (C-14) are unstable?

When can polar bears take care of themselves