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Irina18 [472]
3 years ago
15

Based on the law of conservation of energy, how can we reasonably improve a machine’s ability to do work? Move the machine to a

different gravitational field. Increase the friction between its moving parts. Reduce the friction between its moving parts. Redefine the machine’s system boundaries.
Physics
2 answers:
Lady bird [3.3K]3 years ago
7 0
Reduce the friction. Since the total energy is conserved, the only way to improve its work capacity is by reducing energy that doesnt go into work.
Ulleksa [173]3 years ago
4 0

Reduce the friction between its moving parts

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Please find the attached file for the solution

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What is the magnitude of the velocity when the elastic potential energy is equal to the kinetic energy? (Assume that U=0 at equi
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Answer:

Explanation:

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x=A\cos \omega t

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t=time

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also it is given that Potential Energy(U) is equal to Kinetic Energy(K)

Total Energy=K+U

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x=\pm \frac{A}{\sqrt{2}}

at x=\frac{A}{\sqrt{2}}

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6 0
3 years ago
Bob will not develop a good habit if he _____. works out for only one week develops a consistent schedule of exercise works out
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works out for only one week

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According to this, the option that would not help Bob develop a good habit is if he works out for only one week as doing something everyday is what would help you to create the habit.

3 0
3 years ago
The magnetic field at point P due to a 2.0-A current flowing in a long, straight, thin wire is 8.0 μT. How far is point P from t
Tanzania [10]

Answer:

r = 0.05 m = 5 cm

Explanation:

Applying ampere's law to the wire, we get:

B = \frac{\mu_oI}{2\pi r}\\\\r =  \frac{\mu_oI}{2\pi B}

where,

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<u>r = 0.05 m = 5 cm</u>

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3 years ago
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