All categories

3 years ago

Essential Question: Where does energy come from and where does it go? How is energy transferred and converted?

Physics

1 answer:

slamgirl [31]3 years ago

6 0

Explanation:

Energy transfer is the movement of energy from one location to another. For example, when electricity moves from a wall plug, through a charger, to a battery.

Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy.

You might be interested in

Fossils are dated using radioactive...<br><br> a. hydrogen <br> b. helium<br> c. carbon

OlgaM077 [116]

Answer:

carbon

Explanation:

7 0

4 years ago

Read 2 more answers

Can you help me with what kind of wave is shown?

Romashka-Z-Leto [24]

1 ? 2 transverse 3 longitudinal

4 0

4 years ago

A new planet is discovered orbiting a distant star. Observations have confirmed that the planet has a circular orbit with a radi

Mariulka [41]

Answer:

Mass of star is $1.31\times10^{35}$ kg.

Explanation:

The cube of orbital radius is equal to the square of its orbital time period is known as Kepler's law.

$T^{2} = (\frac{4\pi^{2} }{GM})r^{3}$ .....(1)

Here T is time period, r is orbital radius, G is universal gravitational constant and M is the mass of the star.

According to the problem,

Time period, T = 109 days = 109 x 24 x 60 x 60 s = 9.41 x 10⁶ s

Orbital radius, r = 18 AU = 18 x 1.496 x 10¹¹ m = 2.70 x 10¹² m

Gravitational constant, G = 6.67 x 10⁻¹¹ m³ kg⁻¹ s⁻²

Substitute these values in equation (1).

$(9.41\times10^{6}) ^{2} = (\frac{4\pi^{2} }{6.67\times10^{-11}\times M})(2.70\times10^{12}) ^{3}$

M = $1.31\times10^{35}$ kg

3 0

3 years ago

Do the rider and bicycle have energy while coasting down the hill? If so, explain.

ch4aika [34]

The bicycle and the person on it are in motion. therefore anything is motion has energy.

6 0

4 years ago

Read 2 more answers

How fast does a 3 kg rocket accelerate if a force of 140 N is applied?

elixir [45]

<h3>Answer:</h3>

46.67 m/s²

<h3>Explanation:</h3>

<u>We are given;</u>

Mass of a rocket = 3 kg
Force applied = 140 N

we are supposed to calculate the acceleration of the rocket;

We are going to use the second Newton's law of motion;
According to Newton's second Law of motion force is equivalent to the product of mass and acceleration.
This is from the fact that the resultant force and the rate of change in linear momentum are directly proportional.

Therefore;

F = Ma

In this case;

Rearranging the formula

a = F ÷ m

= 140 N ÷ 3 kg

= 46.67 m/s²

Thus, the acceleration of the rocket is 46.67 m/s²

3 0

4 years ago