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mojhsa [17]
3 years ago
11

How do I solve for horizontal force? And how can I find the acceleration to find the force? And how do I find the power during s

pecific intervals?

Physics
1 answer:
Snezhnost [94]3 years ago
5 0

Answer:hhmm c

Explanation:

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The frequency of a certain sound is 440 Mz. What is the wavelength of this sound when the temperature of the air is (a) 20°C; (b
Serggg [28]

Answer:

Explanation:

We know the frequency and the velocity, both of which have good units. All we have to do is rearrange the equation and solve for

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:

λ

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λ

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340

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2 years ago
Which of the following have the same density. number 26
marusya05 [52]

1 cubic cm is the same as 1 mL, so the answer would be C.

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The semi-major axis of this ellipse is 8.8 cm, and the distance from one of the foci to the
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The eccentricity is 0.5

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3 years ago
According to the second law of thermodynamics, which is a requirement for thermal energy to flow from colder objects to hotter o
maxonik [38]

Answer: work must be done on the system  (Option A)

Explanation:

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4 0
2 years ago
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In an electric field, 0.90 joule of work is required to bring 0.45 coulomb of charge from point a to point
jarptica [38.1K]
The difference in electric potential energy between the two points is
\Delta U = q \Delta V
where q is the magnitude of the charge and \Delta V is the electric potential difference.

But for energy conservation, the difference in electric potential energy \Delta U between the two points is equal to the work done to move the charge between A and B:
W=\Delta U
so we have
W=q \Delta V

and by substituting the numbers of the problem, we find the value of \Delta V:
\Delta V =  \frac{W}{q}= \frac{0.90 J}{0.45 C}=2 V
3 0
2 years ago
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