A baseball, 0.1 kg. is pitched at 45.0 m/s when is hit by the batter. The ball travels in the opposite direction it was thrown from with a speed of 65.0 m/s. What is the change in
momentum of the baseball?

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine

Atoaster oven has a resistive heating element. the average rate at which it dissipates energy as thermal energy is 1.00 \(\rm kw\). in the united states, emf amplitude in household circuits is \(\mathcal e_{\max}\) = 170 \({\rm \; v}\) and the \(\rm ac\) oscillation rate is 60 \(\rm hz\). part a what is the root-mean-square current through the heating element?

You can estimate the degree to which a bond between two atoms is ionic or covalent by calculating the