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I think the statement "<span>A second-class lever will always multiply distance" is true.
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Positive accel.=increase in speed
negative accel.= decrease in speed
Answer:
P = 100 lb
Explanation:
For an ideal machine:
where,
P = Effort = Input Force = ?
L = Effort Arm = Length of inclined plane = 10 ft
W = Load to be lifted = 200 lb
H = Load Arm = Height = 5 ft
Therefore,
<u>P = 100 lb</u>
The highest entropy for the jar of marbles is represented by the marbles are arranged in a random order.
<h3>
What is entropy?</h3>
Entropy is the measure of the degree of disorderliness of a system or degree of randomness of a system.
Entropy of a system increases with increase in randomness of the system or disorderliness of the system.
Thus, the highest entropy for the jar of marbles is represented by the marbles are arranged in a random order.
Learn more about entropy here: brainly.com/question/6364271
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The initial velocity of the potato is 54.41 m/s.
The given parameters:
- <em>Mass of the potato, m = 0.34 kg</em>
- <em>Mass of the cart, m = 5.0 kg </em>
- <em>Velocity of the recoil, u₂ = 3.7 m/s</em>
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The initial velocity of the potato is calculated by applying the principle of conservation of energy as follows;
Thus, the initial velocity of the potato is 54.41 m/s.
Learn more about conservation of linear momentum here: brainly.com/question/7538238