Aboat crosses a river 2km wide at 20km/h relative to the surface of the water. the river is moving at 6km/h downstream relative to the bank of the river.

Asap i'm in class rn a 1,000-kg car is traveling 20 m/s on a flat stretch of road. it gets to a hill and coasts uphill until it stops. how high up the hill does the car travel? givens: equation: 1/2mv2initial=mghfinal solve for h. plug & chug, label.

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

Contains chemical energy. a. heat b. light c. natural gas