4 years ago

Why are there so few working wave power stations?

2 answers:

5 0

If you live near a sea or ocean, You Would be getting power. Because the waves are from large bodies of water (sea, ocean ...)

Bond [772]4 years ago

3 0

Well mostly because it's for oceans and lakes that have waves. so if you don't live near any of these, you wouldn't be getting power.

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The earth has a radius of 6.38 × 106 m and turns on its axis once every 23.9 h.

Vladimir [108]

Answer:

a) V = 465.9 m/s

b) θ = 70.529°

Explanation:

Let's first calculate angular velocity of earth:

$\omega=\frac{2\pi}{23.9h}*1h/3600s$

Velocity of a person on Ecuador will be:

$V_E = \omega*R$

$V_E = 465.9 m/s$

For part b, since angular velocity is the same:

$\frac{\omega*R}{3}=\omega*(R*cos\theta )$

Solving for θ:

$\theta=acos(1/3)$

$\theta=70.529\°$

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Olegator [25]

1) If the object changes directions with the same speed, it will be changing its velocity, because velocity is a vector, which depends on both magnitude and direction. Speed is just magnitude regardless of direction.

2) Rotational motion.

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3 years ago

What does gravity do to objects as they: a) are thrown up: b) fall toward earth:

tangare [24]

Answer:

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