Answer:
D
Explanation:
I am just guessing so please don't hurt me!
Have a great day:)
Atoms vs. Ions. Atoms are neutral; they contain the same number of protons as electrons. By definition, an ion is an electrically charged particle produced by either removing electrons from a neutral atom to give a positive ion or adding electrons to a neutral atom to give a negative ion.
Brainliest please? I need it to level up.
9514 1404 393
Answer:
17. 7.61×10³ N
18. 9.51 m/s²
19. maybe you want 29.375 N
Explanation:
17. Use the given formula for force. Fill in the masses and radius. The distance from the earth is in addition to the radius of the earth.
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18. Make use of the relation ...
F = ma
a = F/m = (7.61×10³ N)/(800 kg)
a ≈ 9.51 m/s²
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19. The acceleration of the runner is ...
a = ∆v/∆t = (9 m/s - 4 m/s)/(8 s) = (5/8) m/s²
The force she is applying to the ground to accelerate herself is ...
F = ma = (47 kg)(5/8 m/s²) = 29.375 N
The amount of force applied to the tape depends on its mass and the effect the tape has on the runner's acceleration. There is insufficient information in the problem statement to permit an answer to the question.