Please someone help I'm very confused How much time in hours would it take a car to drive 100 miles at a speed of 33 miles per hour?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Light waves can move through , but they travel fastest when they move through a(n) .

Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?