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Hatshy [7]
3 years ago
14

Question 3 (1 point) The nucleus occupies most of the space of an atom True O False

Physics
1 answer:
Marizza181 [45]3 years ago
5 0

Answer:

the correct answer is false

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A particle (charge = +0.8 mC) moving in a region where only electric forces act on it has a kinetic energy of 6.7 J at point A.
Maksim231197 [3]

Answer:

The kinetic energy of the particle as it moves through point B is 7.9 J.

Explanation:

The kinetic energy of the particle is:

\Delta K = \Delta E_{p} = q\Delta V

<u>Where</u>:

K: is the kinetic energy

E_{p}: is the potential energy

q: is the particle's charge = 0.8 mC

ΔV: is the electric potential = 1.5 kV                                    

\Delta K = q \Delta V= 0.8 \cdot 10^{-3} C*1.5 \cdot 10^{3} V = 1.2 J

Now, the kinetic energy of the particle as it moves through point B is:

\Delta K = K_{f} - K_{i}

K_{f} = \Delta K + K_{i} = 1.2 J + 6.7 J = 7.9 J

Therefore, the kinetic energy of the particle as it moves through point B is 7.9 J.

I hope it helps you!      

8 0
3 years ago
Ohm’s law describes the relationship between which quantities?
VladimirAG [237]
I think its between b or c
5 0
3 years ago
Read 2 more answers
How many cm are in 900 feet? Using the method of dimensional analysis
Ne4ueva [31]
1 foot = 30.48 cm

(x900) (x900)

900 feet = 27432 cm

Pls give me a brainliest if this helped thx
3 0
3 years ago
What simple machine can be described as a shaft that is attached to the center of a wheel?
charle [14.2K]
"Wheel & Axle" <span>can be described as a shaft that is attached to the center of a wheel

Hope this helps!</span>
4 0
3 years ago
On a farm, you are pushing on a stubborn pig with a constant horizontal force with magnitude 30.0 n and direction 37.0° counterc
sashaice [31]

<span>Since the force is applied at an angle from the horizontal, we will use the horizontal component of this force in calculating for the displacements.
From derivation, the Fx is:</span>

Fx = F cos φ

Where:

Fx = is the horizontal component of the force

F = total force

φ = angle in radian = 37 * pi / 180 = 0.645 rad

Calculating: Fx = 30.0 N * cos(0.645)

Fx = 23.97 N = 24 N

Calculating for Work: W = Fx * d

A. W = 24 N * 15 m = 360 N

B. W = 24 N * 16 m = 384 N

C. W = 24 N * 12 m = 288 N

D. W = 24 N * 14 m = 336 N 

8 0
3 years ago
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