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ankoles [38]
3 years ago
13

which statement is true about the atomic mass? a. it is never greater than the atomic number b. it always equal the atomic numbe

r c. it always lowers the atomic number d. it can be greater than the atomic number
Physics
2 answers:
Karolina [17]3 years ago
6 0

Answer:

d. it can be greater than the atomic number          

Explanation:

Atomic mass number can be defined as the sum of number of protons and number of neutrons present in the nucleus of an atom. On the other hand, atomic number is determined by the number of protons present in the nucleus of the atom. Thus, atomic mass number can be equal or greater than the atomic number but cannot be less than it. Hydrogen has 1 proton and 0 neutrons. So, atomic mass number and atomic number are equal. For rest, the atomic mass number is greater than the atomic number. Thus, option d is correct.

Shtirlitz [24]3 years ago
5 0
D. it can be greater than the atomic number
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The kinetic energy of a baseball is doubled by changing the speed of the baseball. By what factor has its speed changed? √ 2 v i
leonid [27]

Answer:

1/√2

Explanation:

Kinetic energy of a body is expressed as

KE = 1/2mv²

If it's KE is doubled

2KE = 1/2mv1² where v1 is the new speed when the kinetic energy is doubled

To know the value of the amount the velocity has changed, we will divide both equations

2KE/KE = (1/2mv²)/(1/2mv1²)

2 = v²/v1²

(v/v1)² = 2

v/v1 = √2

v1 = v/√2

v1 = 1/√2 × v

The new velocity has changed by

1/√2vinitial

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3 years ago
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The correct answer is d
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3 years ago
.) WHat is the force that causes the pendulum to fall?<br>​
soldi70 [24.7K]

Answer:

The two forces that affect on the pendulum are the force of gravity,

Explanation:

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Therefore, I hope this helps!

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4 0
3 years ago
HURRY! PLEASE HELP!!!!<br><br><br> 3. What methods are you using to test this (or each) hypothesis?
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Answer:

How to Test Hypotheses

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Answer:

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Explanation:

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