Maria is pulling a wagon with 40 N to the right and Claudia is helping her by pushing the wagon with 30 N to the right. Their rude next-door neighbor, Sam, runs up and starts pulling the wagon to the left with 65 N. What is the net force on the wagon?

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

Complete each row of the table below by filling in the missing prefix or missing exponent.