What is a linear function in the form y=mx+b for the line passing through (4.5, -4.25) with y-intercept 2.5?

Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b

What causes the formation of ocean currents?