# Physics

posted by .

When its engine of power 75.0 kW is generating full power, a small single-engine airplane with mass 700 kg gains altitude at a rate of 2.60 m/s .

A)What fraction of the engine power is being used to make the airplane climb? (The remainder is used to overcome the effects of air resistance and of inefficiencies in the propeller and engine.)

Compare the rate of increase in potential energy with the engine power. The ratio will be the fraction that you are being asked to determine.

The rate of increase in potential energy is M g dh/dt.
dh/dt is the rate of increase in altitude, 2.60 m/s. m is the mass and g is the acceleration of gravioty.

## Similar Questions

1. ### Physics

You design an engine that takes in 1.5 x 10^4 J of heat at 650 K in each cycle and rejects heat at a temperature of 350 K. The engine completes 240 cycles in 1 minute. What is the theoretical maximum power output of your engine?
2. ### physics

A water-cooled engine produces 1589 W of power. Water enters the engine block at 14.61 °C and exits at 29.91 °C. The rate of water flow is 147.3 L/h. What is the engine’s efficiency?
3. ### physics

A water-cooled engine produces 1589 W of power. Water enters the engine block at 14.61 °C and exits at 29.91 °C. The rate of water flow is 147.3 L/h. What is the engine’s efficiency?
4. ### physics

A small plane mass 600 kg lifts off from the runway at a speed of 145 Km/Kr. 2 Minutes later, the plane has reached an altitude of 300 meters and its airspeed has dropped to 90 Km/Hr. Assume the power output of the engine was constant …
5. ### Physics

A train on a mountain railway is carrying 200 people of average mass 70kg up a slope at an angle of 30° to the horizontal and at a speed of 6.0 m s–1. The train itself has a mass of 80 000 kg. The percentage of the power from the …
6. ### Physics

The maximum torque output from the engine of a new experimental car of mass m is τ. The maximum rotational speed of the engine is ω. The engine is designed to provide a constant power output P. The engine is connected to …
7. ### physics

an engine pumps of 100 kg of water through a height of 10m in 5 second. Given that the efficiency of engine is 60%. If g=10m/s^2 the power of engine is
8. ### Physics

A small, single engine airplane is about to take off. The airplane becomes airborne, when its speed reaches 117.0 km/h. The conditions at the airport are ideal, there is no wind. When the engine is running at its full power, the acceleration …
9. ### Physics

A multicylinder gasoline engine in an airplane, operating at 2500 rev/min, takes in 7800 J of energy and exhausts 4600 J for each revolution of its crankshaft. What is the mechanical power output of the engine in kilowatts.
10. ### Physics

The mass of a spacecraft is about 480 kg. An engine designed to increase the speed of the spacecraft while in outer space provides 0.09 N thrust at maximum power. By how much does the engine cause the craft's speed to change in 1 week …

More Similar Questions