Two balls are rolling towards each other. Ball 1 has a mass of 5.0kg and a velocity of 2m/s. Ball 2 has a mass of 4.0kg and a velocity of 5m/s. What is the kinetic energy of each ball? What is the total kinetic energy?

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

The minerals found in bones are deposited by living cells called

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)