Two platoons line up for a tug of war. If both platoons have the same number of participants on a team, what other factor is cri
2 answers:
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Answer:
V = 5.83 m/s
Explanation:
Given that,
Mass of a ball of a clay, m = 2 kg
Initial speed of the clay, u = 35 m/s
Mass of a box, m' = 10 kg
Initially, the box was at rest, u' = 0
We need to find the velocity of the box after the collision. Let V be the common speed. Using the conservation of momentum to find it.
So, the velocity of the box after the collision is equal to 5.83 m/s.
Answer:
1. v = 30 m/s
2. v = 5 m/s
3. f = 40 Hz
4. f = 400 Hz
5. f = 300 Hz
6. λ = 0.772 m
7. λ = 0.386 m
8. λ = 0.625 m
9. v = 100 m/s
10. v = 50 m/s
Explanation:
The relationship between frequency, wavelength, and speed of a wave is given by the following formula:
where,
v = speed of wave
f = frequency of wave
λ = wavelength
1.
f = 100 Hz
λ = 0.3 m
Therefore,
v = (100 Hz)(0.3 m)
<u>v = 30 m/s</u>
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2.
f = 50 Hz
λ = 0.1 m
v = (50 Hz)(0.1 m)
<u>v = 5 m/s</u>
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3.
v = 20 m/s
λ = 0.5 m
<u>f = 40 Hz</u>
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4.
v = 80 m/s
λ = 0.2 m
<u>f = 400 Hz</u>
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5.
v = 120 m/s
λ = 0.4 m
<u>f = 300 Hz</u>
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6.
v = 340 m/s
f = 440 Hz
<u>λ = 0.772 m</u>
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7.
v = 340 m/s
f = 880 Hz
<u>λ = 0.386 m</u>
<u></u>
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8.
v = 250 m/s
f = 400 Hz
<u>λ = 0.625 m</u>
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9.
f = 50 Hz
λ = 2 m
v = (50 Hz)(2 m)
<u>v = 100 m/s</u>
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10.
f = 100 Hz
λ = 0.5 m
v = (100 Hz)(0.5 m)
<u>v = 50 m/s</u>