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4 years ago

One safety precaution that you would take when carrying out experiments using resistance wires

1 answer:

7 0

Only make changes to the experimental setup when the circuit power is turned off and all power sources read zero voltage and zero current, as applicable.

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A uniform electric field exists everywhere in the x, y plane. This electric field has a magnitude of 4500 N/C and is directed in

Anton [14]

Answer with Explanation:

We are given that

$E=4500 N/C$

$q=-5.5\times 10^{-9} C$

a.x=-0.2 m

$E'=\frac{Kq}{r^2}=\frac{9\times 10^9\times 5.5\times 10^{-9}}{(0.2)^2}=1237.5 N$

Where $k=9\times 10^9$

Net electric field=E+E'=4500+1237.5=5737.5 N/C

b.x=0.20 m

Net electric field=E-E'=4500-1237.5=3262.5 N/C

c.y=0.20 m

E=1237.5 N/C

Net electric field= $\sqrt{E^2+E'^2}=\sqrt{(4500)^2+(1237.5)^2}=4667.05 N/C$

7 0

3 years ago

2. In a tug of war contest, one person pulls with a force of 5 Newtons. Another person on the same team pulls with a force of 3

yuradex [85]

Answer:

8 newtons

Explanation:

Balanced forces have an equal amount of newtons. 5+3=8, so the other team will need 8 newtons.

5 0

3 years ago

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Which of these measures a wavelength.

ch4aika [34]

Answer:

Explanation:

To measure wavelength, you would find the distance from crest (top of the wave) to crest.

Hope this helps! :)

8 0

3 years ago

If an object is 30cm in front of a convex mirror that had a focal length of 60cm, how far behind the mirror will the image appea

Darya [45]

Answer: d

Explanation:

had the same study island question

4 0

3 years ago

At which position is the southern hemisphere experiencing spring?

atroni [7]

Hey! I know you've probably already finished the quiz already, but I just wanted to let you know the correct answer should be D. I wish I could tell you why, but I ended up getting that answer through a bit of trial and error myself... Anyway, good luck!

8 0

3 years ago

Read 2 more answers