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Studentka2010 [4]
3 years ago
12

Two protons (each with q = 1.60 x 10-19)

Physics
1 answer:
otez555 [7]3 years ago
5 0

Answer:

230.4 N

Explanation:

From the question given above, the following data were obtained:

Charge (q) of each protons = 1.6×10¯¹⁹ C

Distance apart (r) = 1×10¯¹⁵ m

Force (F) =?

NOTE: Electric constant (K) = 9×10⁹ Nm²/C²

The force exerted can be obtained as follow:

F = Kq₁q₂ / r²

F = 9×10⁹ × (1.6×10¯¹⁹)² / (1×10¯¹⁵)²

F = 9×10⁹ × 2.56×10¯³⁸ / 1×10¯³⁰

F = 2.304×10¯²⁸ / 1×10¯³⁰

F = 230.4 N

Therefore, the force exerted is 230.4 N

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Answer:

Explanation:

Given:

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position of firefighter r_F = 3.8m

weight of firefighter F_F = 820N

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Unknown:

force of the wall on the ladder F_W

force of friction on base of ladder F_R

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From the free body diagram of the sketch you get 3 equations:

F_x = ma_x = F_W - F_R = 0\\ F_y = ma_y = F_N - F_F - F_L = 0\\ \tau _P = \overrightarrow{r} \times \overrightarrow{F} = r_FF_Fcos\alpha + \frac{1}{2}r_LF_Lcos\alpha - r_LF_Wsin\alpha = 0

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a)

F_R = 238N\\ F_N = 1310N

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\\ \mu = 0.15\\ F_R = \mu F_N\\ r_F = 2.4m

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At baseball practice, Mason and Alfredo both picked up the same bat and neither would let go until one of them had it for himsel
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To know the the correct answer to the question given above, we shall determine the net force acting on the bat. This can be obtained as follow:

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From the calculation made above, we can see that the net force is 5N in Alfredo's direction. This is the reason why Alfredo end up having the bat.

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