Question

The graph here shows the annual energy output from a windmill or wind turbine corresponding to different annual average wind speeds.

(kWh or Kilowatt-hour is a unit of energy.)
Which of the following can be said based on this graph?
A. The direction of winds play an important role in the energy output in any region.
B. The difference in energy output between 16 km/hr and 24 km/hr is more than 2000 kWh.
C. The energy output remains almost zero even when wind speeds are at around 2 km/hr.
D. The energy output for this windmill will start decreasing once average wind speeds cross 40 km/hr.
Pls Answer Fast I need it Today!!!

Answer 1

Answer:

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.

Explanation:

Answer 2

. A transmitter sends out a pulse of sound underwater and displays the

pulse and echo on a screen. The time between the two pulses is measured a

found to be 2 seconds. If the speed of sound in water is 1500m/s, at what

distance from the ship is the sunken ship underwater?

sonar uses sound waves today jects that are water

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