2 years ago

The form of energy in fossil fuels is what kind of energy?

Physics

2 answers:

Nonamiya [84]2 years ago

7 0

Solar energy or sunlight...

kupik [55]2 years ago

6 0

It's thermal energy.

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Helga [31]

Answer:

1. What is not considered a cardiovascular workout?

A. Jogging

B. Sit ups

C. Jump Ropes

D. Burpees

Explanation:

I am sorry, I am in middle school and I only have one question.

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2 years ago

When there are more coils added to the wire of an electromagnet what happens to

fiasKO [112]

In technical terms, every coil of wire increases the "magnetic flux density" (strength) of your magnet.

So it's A (magnetic field increase)

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2 years ago

Two students push on a 5-kg cart from opposite sides

sweet-ann [11.9K]

Answer:

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2 years ago

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A coil consists of 180 turns of wire. Each turn is a square of side d=30 cm, and a uniform magnetic field directed perpendicular

alexira [117]

Answer:

Emf induced i equal to 329.4 volt

Explanation:

Note : Here i think we have to find emf induced in the coil

Number of turns in the coil N= 180

Sides of square d = 30 cm = 0.3 m

So area of the square $A=0.3\times 0.3=0.09m^2$

Magnetic field is changes from 0 to 1.22 T

Therefore $dB=1.22-0=1.22T$

Time interval in changing the magnetic field dt = 0.06 sec

Induced emf is given by

$e=-N\frac{d\Phi }{dt}=-NA\frac{dB}{dt}$

$e=-180\times 0.09\times \frac{1.22}{0.06}=329.4volt$

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3 years ago

In the inclined plane the objects that are thrown from a more inclined place go faster?

Mamont248 [21]

Assuming the objects roll down the inclined plane, yes.
If the object never touches the plane, then no.

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3 years ago

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