4 years ago

5. All objects____ energy.

Physics

1 answer:

joja [24]4 years ago

6 0

Answer:

Are?

Explanation:

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Answer:

a.) volume = 70cm^3

b.) mass = 805 grams

Explanation:

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3 years ago

GIVING BRAINLY, FOLLOW, STARS AND POINTS

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3 years ago

Consider a 200 g sample of U-238 with decay constant 2.951x10^-16 min^1. Approximately how many disintegrations will occur per m

slamgirl [31]

Answer:

The disintegrations is $5.902\times10^{-17}\ decay /min$ .

Explanation:

Given that,

Weight of sample = 200 g

Decay constant $\lambda=2.951\times10^{-16}\ min^{-1}$

We need to calculate the disintegrations

Using formula of disintegrations

$\dfrac{dN}{dt}=\lambda N$

Where, $\lambda$ = decay constant

N = number of atoms present at time t

Put the value into the formula

$\dfrac{dN}{dt}=2.951\times10^{-16}\times200\times10^{-3}$

$\dfrac{dN}{dt}=5.902\times10^{-17}\ decay /min$

Hence, The disintegrations is $5.902\times10^{-17}\ decay /min$ .

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4 years ago

The device shown below contains 2 kg of water. When the cylinder is allowed to fall 250 m, the temperature of the water increase

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A. cleaning up after environmental disasters

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