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goblinko [34]
3 years ago
15

Calculate the magnitude of the electric field at one corner of a square 2.42 m on a side if the other three corners are occupied

by 5.75×10−6 c charges.
Physics
1 answer:
miv72 [106K]3 years ago
7 0
5.70 x 10 -6 c - 2.42
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Calculate the average force that must be exerted on a 0.145 kg baseball in order to give it an acceleration of 130 m/s^2. (round
r-ruslan [8.4K]

Answer:

18.9 <em>N or </em><em>19</em><em> N </em>rounded

Explanation:

m = 0.145 kg

a = 130 m/s^2

F = ma = (0.145 kg)(130 m/s^2) = 18.9 <em>N</em>

7 0
3 years ago
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Two technicians are discussing electromagnetic induction. Technician A says that the induced voltage can be increased if the spe
Inga [223]

Answer:Both

Explanation:

There are three ways to increase the induced voltage in electromagnetic induction:

1) increase the speed at which the conductor moves through the magnetic field. This means that the lines of flux are cut more quickly and more emf is induced.

2) use stronger magnets which provides a stronger magnetic field and more densely packed lines of flux.

3) use a coil of multiple loops.

Hence both technicians were correct.

3 0
3 years ago
A racecar experiences a centripetal acceleration of 36.0 m/s2 as it travels at a constant speed of 27.0 m/s along a circular arc
alexdok [17]

Answer:

20.25 m

Explanation:

  • <u>Centripetal acceleration </u>is given by; the square of the velocity, divided by the radius of the circular path.

That is;

         <em><u>ac = v²/r</u></em>

<em>         </em><em><u> Where; ac = acceleration, centripetal, m/s², v is the velocity, m/s and r is the  radius, m</u></em>

Therefore;

r = v²/ac

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Hence the radius is 20.25 meters

5 0
3 years ago
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A 3 x 10^-6 C charge is 5m away from a -2x 10^-6 C charge A. Attractive because one is positive the other one is negative B. Det
Marizza181 [45]

Answer:

0.0021576N

Explanation:

F=(k)(q1q2/r^2)

F=(8.99×10^9)(3×10^-6)(2×10^-6)/(5^2)

F=0.0021576N

5 0
2 years ago
Can a physical quantity have different dimensions in different systems of units?​
Mars2501 [29]
Answer: yes a quantity have different dimensions in different system of units . No,because in different system of units doesn't change the quantity but it only changes the numerical.

Good luck !
4 0
3 years ago
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