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Fed [463]
2 years ago
15

how does the total mass of each object increases the amount of force that is needed to get them moving at 5 m/s increase by abou

t 200N demonstrate newtons 2nd law
Chemistry
1 answer:
irakobra [83]2 years ago
7 0

Answer:

The answer is below

Explanation:

Newton's second law of motion states that the force applied to an object is directly proportional to the rate of change of momentum with respect to time, going in the same direction as the force.

Let F = force, m = mass of object, v = velocity of object, mv = momentum.

F = d/dt(mv) = m(dv / dt) = ma; a = acceleration.

Let us assume that the object starts from rest to 5 m/s within 1 seconds, hence:

F = m(dv / dt)

200 N = m[(5 m/s - 0 m/s) / (1 s)]

200 = 5m

m = 40 kg

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Explanation:

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3 years ago
Calculate the potential energy of a 25kg ball sitting 25m high
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The answer is 6,125. To get this you multiply both by 9.8
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How many moles of AgCl2 are in 5.78x1024 molecules of AgCl2?
Zolol [24]

Answer:

9.6 mol AgCl2

Explanation:

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3 0
2 years ago
How many atoms are in four molecules of oxygen gas ​
Dmitrij [34]

Answer:

8 oxygen atoms

Explanation:

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8 0
2 years ago
In the first 22.0 s of this reaction, the concentration of HBr dropped from 0.590 M to 0.465 M . Calculate the average rate of t
jolli1 [7]

Answer:

The average rate is 2.84 X 10⁻³ Ms⁻¹

Explanation:

Average rate = -0.5*Δ[HBr]/Δt

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[HBr]₁ = 0.590 M

[HBr]₂ = 0.465 M

Δ[HBr] = [HBr]₂  - [HBr]₁ = 0.465 M - 0.590 M = -0.125 M

Δt Change in time = 22.0 s

Average rate = -0.5*Δ[HBr]/Δt

Average rate = - 0.5(-0.125)/22

Average rate = 0.00284 Ms⁻¹ = 2.84 X 10⁻³ Ms⁻¹

Therefore, the average rate is 2.84 X 10⁻³ Ms⁻¹

8 0
3 years ago
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