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aleksley [76]
3 years ago
13

Using local acceleration of gravity data from the Internet, de- termine the weight, in N, of a person whose mass is 80 kg living

in: a. Mexico City, Mexico b. Cape Town, South Africa c. Tokyo, Japan d. Chicago, IL e. Copenhagen, Denmark
Physics
1 answer:
Anna007 [38]3 years ago
5 0

Answer

mass of a person is 80 kg

a) Mexico City, Mexico

acceleration due to gravity in mexico = 9.776 m/s²

weight = 80 × 9.776 = 782.08 N

b) Cape Town, South Africa

acceleration due to gravity in cape town  = 9.796 m/s²

weight = 80 × 9.796 = 783.68 N

c)  Tokyo, Japan

acceleration due to gravity in cape town  = 9.798 m/s²

weight = 80 × 9.798 = 783.84 N

d)  Chicago, IL

acceleration due to gravity in cape town  = 9.803 m/s²

weight = 80 × 9.803 = 784.24 N

e) Copenhagen, Denmark

acceleration due to gravity in cape town  = 9.815 m/s²

weight = 80 × 9.815 = 785.2 N

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From the question,

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make v the subject of the equation

v = √(qV/m)......................... Equation 2

Given: q = 6.5×10⁻⁶ C, V = 12000 Volts, m = 0.02 kg

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v = √(6.5×10⁻⁶×12000 /0.02)

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here we have

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q_2 = -1.6 \times 10^{-19} C

r_1 = r_2 = 1 m

now we have

V = \frac{Ke}{r} - \frac{Ke}{r}

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Now work done to move another charge from infinite to origin is given by

W = q(V_f - V_i)

here we will have

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U = \frac{Kq_1e}{r_1} + \frac{kq_2e}{r_2}

U = \frac{9\times 10^9(-1.6\times 10^{-19}(-1.6 \times 10^{-19})}{19} + \frac{9\times 10^9(1.6\times 10^{-19}(-1.6 \times 10^{-19})}{21}

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PART C)

It will reach the origin

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