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algol [13]
3 years ago
12

If two charged objects in a laboratory are brought to a distance of 0.22 meters away from each other. What is

Physics
1 answer:
zysi [14]3 years ago
7 0

Answer:

q_2=2.47\times 10^{-4}\ C

Explanation:

The charge on one object, q_1=9.9\times 10^{-5}\ C

The distance between the charges, r = 0.22 m

The force between the charges, F = 4,550 N

Let q₂ is the charge on the other sphere. The electrostatic force between two charges is given by the formula as follows :

F=\dfrac{kq_1q_2}{r^2}\\\\q_2=\dfrac{Fr^2}{kq_1}\\\\q_2=\dfrac{4550\times (0.22) ^2}{9\times 10^9\times 9.9\times 10^{-5}}\\\\q_2=2.47\times 10^{-4}\ C

So, the charge on the other sphere is 2.47\times 10^{-4}\ C.

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26. A baseball traveling 38 m/s is caught by the catcher. The catcher takes 0.1 seconds to stop the ball. What is the accelerati
Furkat [3]

Answer:

The ball has an acceleration of -380 m/s², this means the ball slows down

An acceleration of -380 m/s² is the equivalent of 38.736 g's

Explanation:

Step 1: Data given

Velocity of the baseball at time t=0 = 38 m/s

At time t, the ball stops. This means v = 0

time before stops = 0.1s

Step 2: Calculate the acceleration

v= v0+at

with v= the velocity of the ball at time t = 0. v= 0

with v0 = the velocity of the ball at time t=0. v0 = 38 m/s

with a= the acceleration in m/s²

with t = time in seconds

0 = 38 + a*0.1

a = -380 m/s²

The ball has an acceleration of -380 m/s², this means the ball slows down

An acceleration of -380 m/s² is the equivalent of 38.736 g's

5 0
3 years ago
The first model of the atom was developed through
Ilya [14]
It was developed through Democritus who was a greek philosopher.

Hope this helps


7 0
3 years ago
Read 2 more answers
What causes a nucleus to become radioactive?
timurjin [86]

Answer:

Answer the strong nuclear force attracts and binds protons and makes the nucleus unstable

Explanation:

4 0
3 years ago
What does resistance refer to in a circuit?
Strike441 [17]

Answer:

Resistance is a measure of the opposite to current flow in an electrical circuit. Resistance is measured in ohms.

Hope this helps

8 0
3 years ago
Because of its retrograde spin, Venus has a longer solar day than its year : Select one:
ELEN [110]

Answer:

FALSE

Explanation:

The rotation of a planet is determined by the rotation of the initial mass that formed the planet.

The retrograde spin has nothing to do with the length of the solar day.

One reason why the rotation of Venus is slow may be due to the tidal lock and the sun's gravity. One solar day in Venus lasts 243 Earth days and it orbits the sun every 224.7 Earth days.

4 0
3 years ago
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