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shtirl [24]
3 years ago
5

Which statement is true with respect to an atom?

Physics
2 answers:
maria [59]3 years ago
7 0
The statement that is true concerning an atom would be C. The atomic number of an atom is equal to the number of protons.
Allushta [10]3 years ago
6 0
<span>C.) The atomic number of an atom is equal to the number of protons.

The atomic number represents the equal number of protons and electrons in an element.</span>
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The components of vector A are Ax = +2.2 and Ay = -6.9 , and the components of vector B are given are Bx = -6.1 and By = -2.2. W
Zina [86]
For simplicity, let's call vector B-A  vector C  Then C is
Cx = (-6.1 - 2.2)  
Cy = (-2.2 - (-6.9))  Or,
Cx = -8.3  Cy = 4.7
The magnitude is found with the Pythagorean theorem
||C|| = √(-8.3² + 4.7²) = 9.538
3 0
2 years ago
A skater makes one revolution per second, f = w/(2p) = 1, with her arms and leg stretched (left). By lowering her leg and bringi
Firlakuza [10]

Answer:

Answer is given in the attachment.

Explanation:

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4 0
3 years ago
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True or false—If a rock is thrown into the air, the increase in the height would increase the rock’s kinetic energy, and then th
nlexa [21]
I think that this is false but I am not sure
5 0
2 years ago
Which perspective is most directly involved with the study of how brain
daser333 [38]

Answer:

biopsychlogy

Explanation:https://www.answers.com/Q/Which_perspective_is_most_directly_involved_with_the_study_of_how_brain_development_might_affect_behavior

6 0
3 years ago
If a 0.15 kg ball falls and has a KE of 20 J just before striking the ground, from what height did it fall. A. 1.36m B. 3m C. 13
RUDIKE [14]
According to the conservation of mechanical energy, the kinetic energy just before the ball strikes the ground is equal to the potential energy just before it fell. 

Therefore, we can say KE = PE
We know that PE = m·g·h

Which means KE = m·g·h

We can solve for h:

h = KE / m·g
   = 20 / (0.15 · 9.8) 
   = 13.6m

The correct answer is: the ball has fallen from a height of 13.6m.

5 0
3 years ago
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