Explain what causes the quarter to be attracted to the magnet ONLY when the magnet is moving quickly near the quarter. TWO WORDS ONLY!

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?