A carnot heat engine has an efficiency of 0.800. if it operates between a deep lake with a constant temperature of 280.0 k and a hot reservoir, what is the temperature of the hot reservoir?

Which is not a benefit of power in sport? Jump higher Throw further More focused mind Run faster

A 60-kg skier starts at the top of a 10-meter high slope. At the bottom, she is traveling 10 m/s. How much energy does she lose to friction? 5,880 J 2,880 J She doesn't lose any because mechanical energy is always conserved. 3,000 J

What kind of energy does Bow string have when it is stretched

A water wheel is a example of

Within which type of water body does water move the slowest? A.) River B.) Cloud C.) Ocean D.) Groundwater

An electric circuit consists of a variable resistor connected to a source of constant potential difference. If the resistance of the resistor is doubled, then

What would happen if an electron was added to an atom

Is a stick living, non living or Dead?

A ball player catches a ball 3.24 s after throwing it vertically upward. With what speed did he throw it?

Most metallic ores are produced by which two of processes? a) Metamorphic and Sedimentary b) Igneous and Metamorphic c) Igneous and Sedimentary d) Cementation and Compaction