All categories

4 years ago

Which best describes a difference between energy transformations in power plants and dams?

2 answers:

8 0

Well when the power is generated, it doesn't matters what source it came from, but transformation make difference.
Energy by power plants in usually built in rivers difference lies between water-level above and below the power-plant, in latter water is then driven through turbines that generates energy

Illusion [34]4 years ago

3 0

Answer: A: Only power plants use fossil fuels to transform energy.

Explanation:

Looking at Dams and Power Plants, and looking at the options given,

option A: , Between the given choices, dams do NOT use fossil fuels, ONLY power plants do

option B: Dams most definitely do NOT use fission

option C: Power plants may use water to generate their power, but they srent the ONLY one of the two options that do

option D: BOTH Dams and power plants use mechanical energy to produce electricity, through the use of turbines

You might be interested in

A simple motor converts _________________ energy into ___________________ energy.

swat32

Answer:

<h3>A simple motor converts electrical energy energy into mechanical energy.</h3>

4 0

3 years ago

Read 2 more answers

Each diagram shows a single experimental trial in which you will drop a ball from some height. in each case, the ball's size, ma

enot [183]

<span>The simplest way to test the effects of mass is to compare the results of two trials that are identical except for the mass of the balls. In the language of experimental design, we say that the mass is the "variable of interest" for this experiment, and we therefore hold the other variables (size and height) constant so that they cannot affect the results.</span>

5 0

4 years ago

How long will bus take to travel 150 km at an average speed of 40km/hr

romanna [79]

Answer:

3.75 hours

Explanation:

By $v = \frac{d}{t}$

where v is the velocity (or speed in this case)

d is the distance travelled

t is the time taken

$t = \frac{150}{40}=3.75$
Therefore it takes 3.75 hours for the bus to travel 150 km and 40 km/hr.

7 0

3 years ago

What happens when white light shines through a translucent, red, glass window? a) All colors of light except red are transmitted

GREYUIT [131]

Answer:

b. Red light is transmitted through and reflected by the glass

Explanation:

Give me brainliest plz!

3 0

3 years ago

Resistor A has twice the resistance of resistor B. The two are connected in series and a potential difference is maintained acro

Ainat [17]

Answer:

<em>The thermal energy dissipated in A would be twice that in B</em>

Explanation:

Resistor B (RB)= R

Resistor A (RA)= 2 R

When they are connected in series the equivalent Resistance in the circuit would be;

Equivalent resistance = RA +RB = R + 2 R = 3 R;

From ohms law I = V/R

I = V/3 R

Now the thermal energy is the power dissipated by the circuit and can be obtained thus;

P = $I^{2}R$

Then,

$P_{A} = (\frac{V}{3R}) ^{2} *2 R\\\\P_{A} = \frac{V^{2} }{9R^{2} } *2R\\\\P_{A} = \frac{2}{9}( \frac{V^{2} }{R}) \\\\P_{B} = (\frac{V}{3R}) ^{2} * R\\\\P_{B} = \frac{V^{2} }{9R^{2} } *R\\\\P_{B} = \frac{1}{9}( \frac{V^{2} }{R})$

Therefore Pa : Pb = 2: 1, this means that the thermal energy dissipated in A would be twice that in B

4 0

3 years ago