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2 years ago

What effects does using fossil fuels have on our planet

2 answers:

3 0

The Damage Fossil Fuels<span> can do. However they are obtained, whether through traditional or new methods such as fracking, </span>burning fossil fuels<span> such as oil, coal and gas results in the production of carbon dioxide and other greenhouse gases, which cause global warming.</span>

garik1379 [7]2 years ago

3 0

However they are obtained, whether through traditional or new methods such as fracking, burning fossil fuels such as oil, coal and gas results in the production of carbon dioxide and other greenhouse gases, which cause global warming.

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Which of these is an example of electrical energy being converted to mechanical energy?

GalinKa [24]

Answer:

Ceiling fan

Explanation:

Ceiling fan is a perfect and typical example of electrical energy being converted to mechanical energy.

In most systems, energy is usually transformed from one form to another. Energy is not created neither is it destroyed. We know this by virtue of law of conservation of energy.

The ceiling fan is powered by electrical energy from an outlet.
The energy from the outlet is used to drive the blades of the fan and set them into motion.
This is mechanical energy.

7 0

2 years ago

A fire helicopter carries a 700-kg bucket of water at the end of a 20.0-m long cable. Flying back from a fire at a constant spee

rodikova [14]

Answer:

F = 50636.873 N

Explanation:

given,

bucket of water = 700-kg

length of cable = 20 m

Speed = 40 m/s

angle of the cable = 38.0°

let air resistance be = F

tension in rope be = T

T cos 38° = m×g..................(1)

$T sin 38^0= \dfrac{mv^2}{l} + F$ ..........(2)

equation (1)/(2)

$tan 38^0 =\dfrac{\dfrac{mv^2}{l} + F}{mg}$

$0.781=\dfrac{\dfrac{700\times 40^2}{20} + F}{700\times 9.8}$

F = 50636.873 N

Hence the force exerted on the bucket is equal to F = 50636.873 N

5 0

3 years ago

Ionic bonds form between what

AysviL [449]

An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually a nonmetal.

4 0

2 years ago

HELP PLEASE I need to finish this asap

ELEN [110]

Answer:

I'm not 100% sure, but I think the answer would be the first one because there's a force pushing the object in every direction, so they would cancel eachother out and make the object stay in the same place.

Explanation:

pls vote brainliest

6 0

2 years ago

Read 2 more answers

On android phones, up to four apps can be pinned to the __________ at the bottom of the screen.

Paladinen [302]

That is called a Dock

4 0

3 years ago