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3 years ago

HOW TO ANSWER THIS QUESTION PLEASE

Physics

2 answers:

Over [174]3 years ago

5 0

Answer:

Radioactive decay is a long proxy
Use long tongs

↔ for safety precautions the scientist should used this upon working with radioactive materials in a laboratory.

Zigmanuir [339]3 years ago

4 0

Answer:

radioactive decay is a random process
use long tongs

Explanation:

Quantum theory has taught us that virtually everything to do with the nature of matter in the universe is a random process. The decay of atomic nuclei is something that makes that randomness "visible" with appropriate instrumentation. As such, the rate of decay will vary over the "short" term. Consequently, it is not surprising to see a variation of a few counts in an activity measurement over a period of a few minutes.

Safety with respect to radioactive materials involves staying as far away from them as possible. The use of long tongs for handling would be appropriate.

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The equation for the chemical reaction shown is not balanced. What number should replace the question mark to balance this equat

Fudgin [204]

The equation is balanced as it is.

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3 years ago

Which law of motion explains what happens during a ride on the bumper cars ?

fomenos

Answer:

Newtows first law of motion

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2 years ago

An 92-kg football player traveling 5.0m/s in stopped in 10s by a tackler. What is the original kinetic energy of the player? Exp

Artemon [7]

Explanation:

It is given that,

Mass of the football player, m = 92 kg

Velocity of player, v = 5 m/s

Time taken, t = 10 s

(1) We need to find the original kinetic energy of the player. It is given by :

$k=\dfrac{1}{2}mv^2$

$k=\dfrac{1}{2}\times (92\ kg)\times (5\ m/s)^2$

k = 1150 J

In two significant figure, $k=1.2\times 10^3\ J$

(2) We know that work done is equal to the change in kinetic energy. Work done per unit time is called power of the player. We need to find the average power required to stop him. So, his final velocity v = 0

i.e. $P=\dfrac{W}{t}=\dfrac{\Delta K}{t}$

$P=\dfrac{\dfrac{1}{2}\times (92\ kg)\times (5\ m/s)^2}{10\ s}$

P = 115 watts

In two significant figures, $P=1.2\times 10^2\ Watts$

Hence, this is the required solution.

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3 years ago

52. How did people spend Life in the hunting age-

kondor19780726 [428]

Answer:

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3 years ago

Read 2 more answers

What two factors affect the rate of acceleration of an object?

Masja [62]

For help with this answer, we look to Newton's second law of motion:

Force = (mass) x (acceleration)

Since the question seems to focus on acceleration, let's get
'acceleration' all alone on one side of the equation, so we can
really see what's going on.

Here's the equation again:

Force = (mass) x (acceleration)

Divide each side by 'mass',
and we have: Acceleration = (force) / (mass) .

Now the answer jumps out at us: The rate of acceleration of an object
is determined by the object's mass and by the strength of the net force
acting on the object.

5 0

3 years ago

HOW TO ANSWER THIS QUESTION PLEASE ​

HOW TO ANSWER THIS QUESTION PLEASE