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Anna [14]
3 years ago
14

Answer either one or both questions! Must explain and show work to receive brainliest!

Physics
1 answer:
MariettaO [177]3 years ago
3 0
<span>F x L = W x X whereW=weight is total load = 80, L is length from fulcrum which is the unknown and what we are solving for. x= length we know. and F equals 50 force we know. So (W*X)/F=LL equals 64</span>
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The diagram below shows a light ray striking Medium A and Medium B at the same angle.
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Answer: D  Medium B is denser than Medium A because light bends more in Medium B.

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3 years ago
A 6.7 kg object moves with a velocity of 8 m/s. what is its kinetic energy
blagie [28]

The Correct answer to this question for Penn Foster Students is: 214.4 J

3 0
3 years ago
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Two charged particles are a distance of 1.82 m from each other. One of the particles has a charge of 7.52 nC, and the other has
elena55 [62]

Answer:

(a) F=9.10*10^{-8}N

(b) The force is repulsive

Explanation:

a) According to Coulomb's law, the magnitude of the electrice force that one particle exerts on the other is defined as:

F=\frac{kq_1q_2}{d^2}

Here k is the coulomb constant, q_1 and q_2 are the signed magnitudes of the charges and d is the distance between them.

F=\frac{8.99*10^{9}\frac{N\cdot m^2}{C^2}(7.52*10^{-9}C)(4.46*10^{-9}C)}{(1.82m)^2}\\F=9.10*10^{-8}N

b) According to Coulomb's law, if the two charges have the same sign, the electrostatic force between them is repulsive.

5 0
3 years ago
PLS ANSWER FAST WILL GIVE BRAINLYEST TIMED TEST!!!!
MariettaO [177]
Using a=f/m u get 100 bc 5/.05 =100m/s
4 0
3 years ago
I though a=9.8 is in free fall?
Elina [12.6K]
9.8m/s^2, i’m not sure what you are asking
7 0
3 years ago
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