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erastovalidia [21]

3 years ago

14

Why would a flare be observed in visible light, when they are so much brighter in X-ray and ultraviolet light?

1 answer:

raketka [301]3 years ago

3 0

Answer:

Because it radiates a spectre of frequencies, this means that it radiates in a continuous range of frequencies, ones with more intensity (like x-ray and ultraviolet) and others with less intensity (like the visible light). While most of the radiation is not in the visible range, there still is a part of the radiation in the visible spectre. And while this part is not the most intense part, the radiation is so large that we can see a very bright visible light.

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Which of the following is not a transverse wave?A) soundB) lightC) radioD) all of theseE) none of these

quester [9]

The answer is light, because a transverse wave is a wave vibrating at right angles to the direction of its propagation

7 0

3 years ago

Neptunium. In the fall of 2002, scientists at Los Alamos National Laboratory determined that the critical mass of neptunium-237

Paladinen [302]

Answer:

Radius = 9.0216 cm

Explanation:

Given that:

The critical mass of neptunium-237 = 60 kg

Also, 1 kg = 1000 g

So mass = 60000 g

Density = 19.5 g/cm³

Volume = ?

So, volume:

$Volume=\frac {{Mass}}{Density}$

$Volume=\frac {60000\ g}{19.5\ g/cm^3}$

The volume of the material = 3076.92308 cm³

The expression for the volume of the sphere is:

$V=\frac {4}{3}\times \pi\times {(radius)}^3$

$3076.92308=\frac{4}{3}\times \frac{22}{7}\times {(radius)}^3$

$\frac{4}{3}\times \frac{22}{7}\times {(radius)}^3=3076.92308$

$88\times {(radius)}^3=64615.38468$

${(radius)}=\sqrt[3]{\frac{64615.38468}{88}}$

<u>Radius = 9.0216 cm</u>

4 0

4 years ago

Which statement describes what happens when Bret runs up a flight of stairs?

ivolga24 [154]

His kinetic energy is converted to potential energy.

4 0

4 years ago

Read 2 more answers

The acceleration due to gravity on Earth is 9.80 m/s2. If the mass of a honeybee is 0.000100 kilograms, what is the weight of th

Yuliya22 [10]

Answer:

0.00098 N

Explanation:

The weight of an object is given by:

$W=mg$

where

m is the mass of the object

g is the gravitational acceleration on the planet

In this problem, we have:

$m=0.0001 kg$ is the mass of the honeybee

$g=9.8 m/s^2$ is the acceleration due to gravity

Substituting into the equation, we find:

$W=mg=(0.0001 kg)(9.8 m/s^2)=0.00098 N$

4 0

3 years ago

Read 2 more answers

ANSWER MY FRACKING QUESTION PLEASE

antiseptic1488 [7]

Answer:

According to newton second law of motion (Force=mass×acceleration) F=ma here m=50kg and a=2m/sec² so F=50×2=100N so Force=100N

4 0

4 years ago