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romanna [79]
3 years ago
15

A wire with a resistance of 20 is connected to a 12 battery. What is the current flowing through the wire?

Physics
1 answer:
Dima020 [189]3 years ago
3 0
15.49 should be the answer if that is 12 watt battery.
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AleksandrR [38]

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Which of the following represents an upright image? <br> A. -do<br> B. +m<br> C. -m<br> D. +do
Tom [10]

Answer:

B. +m

Explanation:

The magnification of an image is defined as the ratio between the size of the image and of the object:

m = \frac{y'}{y}

where we have

y' = size of the image

y = size of the object

There are two possible situations:

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Therefore, the correct option representing an upright image is

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5 0
3 years ago
A man does 4,780 J of work in the process of pushing his 2.70 103 kg truck from rest to a speed of v, over a distance of 25.5 m.
wolverine [178]

Answer:

(A) Velocity will be 1.88 m/sec

(b) Force will be 187.45 N

Explanation:

We have given work done = 4780 j

Distance d = 25.5 m

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We know that kinetic energy is given  by

KE=\frac{1}{2}mv^2

So v=\sqrt{\frac{2KE}{m}}=\sqrt{\frac{2\times 4780}{2.7\times 10^3}}=1.88m/sec

(B) We know that work done is given by

W = Fd

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4 0
3 years ago
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The sound level of the sound wave due to the ambulance is 140.

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To learn more about sound, Visit:

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