Answer:
Correct answer: F₂ = 104.5 N
Explanation:
Given:
m = 57 g = 57 · 10⁻³ kg
Δt = 30 ms = 30 · 10 ⁻³ seconds
V₁ = 73.14 m/s service speed
V₂ = 55 m/s returned speed
M = m · V Momentum or Impulse
You forgot to indicate what time the ball contact when returning.
We will assume that the time is the same Δt = 30 ms = 30 10 ⁻³ seconds.
The formula for calculating force is according to Newton's second law is:
F = ΔM / Δt = m · ΔV / Δt
Force during service is:
F₁ = 57 · 10⁻³ · 73.14 / 30 · 10 ⁻³ = 138.97 N
F₁ = 138.97 N
Returned force:
F₂ = 57 · 10⁻³ · 55 / 30 · 10 ⁻³ = 104.5 N
F₂ = 104.5 N
God is with you!!!
A nuclear particle with no charge is a neutron
A. Companies should consider that people will learn more and become more valuable over time.
<h3>
Importance of human resources</h3>
human resources provide the organization with a clear vision of competitive advantage and contribute affectively to the organizational success in general.
Human resources also ensure employee satisfaction.
Thu, "human" part of human resources influence how companies need to treat these resources by ensuring that companies consider that people will learn more and become more valuable over time.
Learn more about human resources here: brainly.com/question/10583893
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It should be true: electrons low from negative toward positive to negative toward positive because opposite charges attract each other.
I hope this was correct
Answer:
D. It has a central nucleus composed of 35 protons and 45 neutrons,
surrounded by an electron cloud containing 35 electrons.
hope this was helpful ! <3
