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Len [333]
3 years ago
14

Stars only emit light within the visible spectrum of the electromagnetic spectrum.

Physics
1 answer:
BabaBlast [244]3 years ago
7 0
A True Stars only emit light within the visible spectrum of the electromagnetic
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Which of the following is the most appropriate description of an electric current?
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What is the mass of an object if it took 270 J of work to move it 15 meters? Please help!
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A double insulated drill ____. A. has two ground wires to insure proper grounding B. generally has a plastic case with the elect
Len [333]

Answer:

Option B is correct.

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8 0
3 years ago
Calcular la energía cinética de un cometa cuya masa es de 5×10 elevado a 31 kg y se mueve con velocidad de 216000km/h
PolarNik [594]

The kinetic energy is 9\cdot 10^{40}J.

Explanation:

The kinetic energy of an object is given by

K=\frac{1}{2}mv^2

where

K is the kinetic energy of the object

m is the mass of the object

v is the speed of the object

For the comet in this problem, we have:

m=5\cdot 10^{31} kg is its mass

v=216,000 km/h is the speed

First, we convert the speed  from km/h to m/s:

v=216,000 \frac{km}{h} \cdot \frac{1000 m/km}{3600 s/h}=60,000 m/s

Therefore, the kinetic energy of the comet is

K=\frac{1}{2}(5\cdot 10^{31})(60,000)^2=9\cdot 10^{40}J

Learn more about kinetic energy here:

brainly.com/question/6536722

#LearnwithBrainly

5 0
3 years ago
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