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3 years ago

How is electromagnetic energy from the microwave transformed into heat energy

2 answers:

7 0

The energy comes in waves and I forget how, but the waves make the water molecules in teh food spin and that causes friction which warms the food up

tamaranim1 [39]3 years ago

7 0

It's absorbed by the food. I hope that helps! Have a good day!

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The death of a star occurs when its _____ stops.

Likurg_2 [28]

Nuclear fusion
Stars fuse hydrogen into helium (and depending, also carbon, oxygen, neon, magnesium, silicon, and iron but that's complicated) to resist the force of immense gravity, in order to retain its shape.

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4 years ago

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In order to increase thermal energy, the temperature must ___________.

Anni [7]

In order to increase thermal energy, the temperature must <span>increase</span>

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3 years ago

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There are four charges, each with a magnitude of 2.06 µC. Two are positive and two are negative. The charges are fixed to the co

mars1129 [50]

Answer:

0.208 N

Explanation:

We are given that

$q_1=q_2=2.06\mu C=2.06\times 10^{-6} C$

$q_3=q_4=-2.06\mu C=-2.06\times 10^{-6} C$

Distance,d=0.41 m

The magnitude of the net electrostatic force experienced by any charge at point 4

Net force, $F_{net}=\sqrt{F^2_1+F^2_3+2F_1F_3cos90^{\circ}}-F_2$

$F_1=F_3=F$

$F_{net}=\sqrt{F^2+F^2+0}-F_2$

$F_{net}=\sqrt 2F-F_2$

$F=\frac{kq^2}{d^2}$

$F_2=\frac{Kq^2}{2d^2}$

$F_{net}=\frac{\sqrt 2kq^2}{d^2}-\frac{kq^2}{2d^2}=\frac{kq^2}{d^2}(\sqrt 2-\frac{1}{2})$

Where $k=9\times 10^9$

$F_{net}=\frac{9\times 10^9\times (2.06\times 10^{-6})^2}{(0.41)^2}(\sqrt 2-\frac{1}{2})$

$F_{net}=0.208 N$

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3 years ago

Answer each question yes or no. Assume the motions and currents mentioned are along the x axis and fields are in the y direction

Sergeeva-Olga [200]

(a) Does an electric field exert a force on a stationary charged object? YES ( F = Eq)

(b) Does a magnetic field do so?- NO ( F= qvB)

(d) Does a magnetic field do so? YES ( F = qvB)

(e) Does an electric field exert a force on a straight current-carrying wire? ( NO)

(f) Does a magnetic field do so? Yes

(g) Does an electric field exert a force on a beam of moving electrons? Yes

(h) Does a magnetic field do so? YeS

To know more about magnetic field visit : brainly.com/question/10353944

#SPJ4

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2 years ago

If you increase the mass but keep force constant what will happen to the acceleration of the object

drek231 [11]

Answer:accelaration will decrease because forse is inversly proportional to mass.

Explanation:

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4 years ago