A gas hot water heater is 65% efficient. The energy output to heat the water is 2.3 kWh.

Round each answer to the nearest tenth.

The energy input is
kWh.

Therefore,
kWh are lost to the surroundings.

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

In a good thermo flask the main cause of heat loss is