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3 years ago

For the second problem do I what do I have to do ( +,times,- or diving

Physics

1 answer:

ikadub [295]3 years ago

3 0

You will have to multiply the two fractions displayed in the question to get the answer to this question.

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In a process called pair production, an energetic

vredina [299]

Answer:

(3) mass-energy must be conserved

Explanation:

As we know that gamma rays are mass less and charge less photons which will have sufficient energy.

Now in case of Pair production the gamma photons convert its whole energy into mass by the law of Einstein's mass energy equivalence relation.

As per his relation we can say

$E = \Delta m c^2$

here we will have

[tex]\Delta m[\tex] = mass produced

now we also have to think that here the two particles must have a pair of particles and antiparticles so that the combined mass system will have energy equivalent to the energy of gamma photons and also it must follow the conservation of charge

So here it will form an electron and a positron such that total charge will be zero and the energy will be same as energy of gamma photon.

3 0

4 years ago

Read 2 more answers

Estimate the number of Ping-Pong balls that can be packed into an average size room (without crushing them). Given that Ping-Pon

scoray [572]

Answer: 3,893,845.918 Ping-Pong balls

Explanation:

The volume of an average room is:

$V_{room}=(length)(width)(height)$ (1)

$V_{room}=(12 ft)(18 ft)(9 ft)=1944 ft^{3}$ (2)

Now let’s transform this $V_{room}$ to units of $cm^{3}$ , knowing $1 ft=30.48 cm$ :

$V_{room}=1944 ft^{3}\frac{{(30.48 cm)}^{3}}{1ft^{3}}=55,047,949.78 cm^{3}$ (3)

On the other hand, we have Ping-Pong balls with a radius $r=1.5 cm$ , and their volume is given by:

$V_{balls}=\frac{4}{3} \pi r^{3}$ (4)

$V_{balls}=\frac{4}{3} \pi (1.5 cm)^{3}$ (5)

$V_{balls}=14.137 cm^{3}$ (6)

Now, the number $n$ of Ping-Pong balls that can be packed into the room is:

$n=\frac{V_{room}}{V_{balls}}$ (7)

$n=\frac{55,047,949.78 cm^{3}}{14.137 cm^{3}}$ (8)

$n=3,893,845.918$ This is the number of Ping-Pong balls that can be packed into an average size room

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3 years ago

Which of the following is true about radiation from the sun?

Lelu [443]

><span>It can travel through vacuum.

The rays must travel in the vacuum of space between Earth's atmosphere and the sun.</span>

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4 years ago

A solid solute is added to a liquid solvent. The solution is stirred and heated. How does stirring and heating affect the soluti

bija089 [108]

because of conduction the metal spoon is a conductor so the heat is getting traveled through the spoon and into your hand

5 0

4 years ago

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What are the 4 forces that are at work within the nucleus of an atom

postnew [5]

<span>Electromagnetic, Strong Nuclear, Weak Nuclear, and Gravity</span>

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3 years ago