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3 years ago

A gamma ray emission results in the release of energy without any apparent change in mass or nuclear charge.

1 answer:

6 0

A gamma ray by definition, has a zero charge and a zero mass.

So when it is released it does not change the mass or nuclear charge of the parent material.

But it does involve the release of energy like all radioactive processes.

So the statement is True.

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If sin 22.6°=5/13, what is cos 67.4° ?

lara [203]

The value of cos 67.4° is 5/13.

According to trigonometric identities used in mathematics, sin of an angle is equal to cos of 90 - the given angle. Mathematically, this means that, suppose we have an angle x, then-

sin(90 - x) = cos x

Here, we are given that sin 22.6° = 5/13. As we can observe that (90 - 67.4) is equal to 22.6, and we need to find the value of cos 67.4° only. Thus we can write the given equation as follows-

sin22.6° = sin(90 - 67.4°)

= cos 67.4°

Thus, sin 22.6° = cos 67.4°

Hence, cos 67.4° = 5/13

Thus, the value of cos 67.4° comes out to be 5/13.

Learn more about trigonometric identities here-

brainly.com/question/7331447

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3 0

7 months ago

I don't understand what question b) i) is asking me to do?

Sonja [21]

Answer:

Step-by-step explanation:

Imagine someone is trying to put tiles on a bathroom floor - this is the situation in this question. "tiles needed to fit across the length" is asking how many 25cm tiles can fit in the length of the bathroom, which is 8m.

To do this, we need to do some conversion.

8m to cm = 800cm

800 ÷ 25 = 32

This means 32 tiles are needed to fit across the length of the bathroom floor.

Hope this makes sense!

- profparis

7 0

1 year ago

What is the solution to the system of equations!

ella [17]

Answer:

no solutions

Step-by-step explanation:

if you solve by elimination you will get 0=-4

That statement is false

7 0

2 years ago

Read 2 more answers

Please help me with this problem :) <br> show ur work please

Marina CMI [18]

Answer:

$\boxed{w = 14.9} \: or \: you \: can \: say \: \underline{\boxed{w = 15} }$

Step-by-step explanation:

$applying \: the \: pythagorean \: rule : \\ {(hyp)}^{2} = {(adj)}^{2} + {(opp)}^{2} : \\ {w}^{2} = {11}^{2} + {10}^{2} \\ {w}^{2} = 221 \\ w = \sqrt{221} \\ \boxed{w = 14.866068747}$

7 0

3 years ago

PLEASE HELP Harold purchased a new snowmobile. The dealer gave him an option to pay the purchase price of dollars at 100 dollars

Harlamova29_29 [7]

Answer:

x-100y

Step-by-step explanation:

x-the price

x-100y is the last payment

5 0

2 years ago

Read 2 more answers