What sort of process converts the mechanized energy in the ocean into electricity?

Answers

Answer 1

Answer: I think it is the wave energy.
Wave energy also known as the ocean energy is the energy harnessed from the ocean or sea waves. It is a source of power that comes from the endless march of the waves as they roll into the shore then back out. Using wave energy is advantageous as they are environmental friendly as there are no harmful byproducts, and also the energy from waves can be taken directly into electricity-producing machinery and used to power generators.

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Timmy bikes to school 3 kilometers east and 2 kilometers south. What is Timmy's final displacement?

Answers

Answer:

3.6km South East

Explanation:

Displacement is the shortest distance between the starting point and the ending point and the direction it is displaced in. To calculate the displacement we can use the pythagoras theorem because the 3km East and the 2km south form the two shorter sides of a right angled triangle between the starting and ending points. So, the displacement is the length C of the triangle which we can calculate as follows:

Pythagoras Theorem:

a^2+b^2=c^2

(2)^2+(3)^2=c^(2)

4+9=c^2

Square root 13 = c

c=3.6km (1dp)

The total displacement is 3.6km and is in the approximate direction of South East (because he travelled east and south).

Hope this helped!

Bena thinks that dissolving more salt in water causes the mixture’s freezing temperature to change. Which is the best type of scientific investigation for Bena to use to study this?

Answers

Entropy and the Second Law of Thermodynamics.
Dissolving salt in water lowers the temperature at which the water freezes, or at which the ice melts.

What is true of a mechanical wave? @3.2.P.B5 @1A)
It must travel in a vacuum

B)
It must have a medium.

C)
It must travel in empty space.

D)
Both sound and light are examples

Answers

I think it is B. Mechanical waves carry energy through a medium.

It should be definitely B

Name 2 forces acting on an object at rest Only need 1 got gravity

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You mean like a box sitting on a table.

One force is the force of gravity, pulling downward on the box.

Now, you know that the forces acting on the box must be balanced, because
if they're not, then the box would be accelerating. But it's just sitting there, so
there must be some other force, just exactly the right strength and direction to
exactly cancel the force of gravity on the box, so that the net force on it is zero.

The other force is the force of the table pushing upward on the box. It's called
the "normal force".

What is a tiltmeter?

Answers

A tiltmeter is an object to measure small movements.

A racecar is traveling in uniform circular motion around a racetrack. What happens to the centripetal acceleration of the car if the speed is doubled and the radius of the circle remains constant?