What is the mainimum thickness of aluminum foil to block alpha particles emitted from cf- 252 source?

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?

Acar jack with a mechanical advantage of 6 needs to produce an output force of 600 n to raise a car. what input force is required? 6 n 100 n 600 n 3,600 n