3 years ago

Which subatomic particles will you add or remove to change the mass of an atom

1 answer:

4 0

B. because protons and neutron are the sum of atomic mass of an element

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Scorpion4ik [409]

D lung cancer is not infectious

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iVinArrow [24]

A because an earthquake is shaking of tectonic plates

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valentinak56 [21]

Wee can use here kinematics

as we know that

$y = v*t + \frac{1}{2} at^2$

for shorter tree we know that

$y = 0 + \frac{1}{2}*9.8 * 2^2$

$y = 19.6 meter$

now since we know that other tree is twice high

So height of other tree is y = 39.2 m

now again by above equation

$y = v*t + \frac{1}{2} at^2$

$39.2 = 0 + \frac{1}{2}*9.8 * t^2$

$t = 2.83 s$

so the time taken is 2.83 s

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3 years ago

bazaltina [42]

Answer: A, C, E

Explanation:

Gamma rays, Microwaves, and Radio waves

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beks73 [17]

the answer to your question is 10.5 kJ

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3 years ago