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3 years ago

Calculate the magnitude and the direction of the resultant forces

Physics

1 answer:

snow_tiger [21]3 years ago

6 0

answer:

resultant = 127.65 in the positive direction

explanation:

F1 = 50N , F2 = 40N, f3 = 55N , f4 = 60N

Fy = 50 sin 50 = 50 × -0.26 = -13

Fx = 40 cos 0 = 40×1 = 40

fx = 55 cos 25 = 55×0.99 = 54.45

Fy = 60 sin 70 = 60 × 0.77 = 46.2

resultant = -13+40+54.45+46.2 = 127.65 in the positive direction

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3 years ago

Suppose you have a 75-watt light bulb that you leave turned on for two minutes. How much energy

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2 years ago

Normal atmospheric pressure is 1.013 105 Pa. The approach of a storm causes the height of a mercury barometer to drop by 27.1 mm

Burka [1]

Answer:

The atmospheric pressure is $0.97622\times10^{5}\ Pa$ .

Explanation:

Given that,

Atmospheric pressure $P_{atm}= 1.013\times10^{5}\ Pa$

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Using formula of pressure

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$h''=0.76-27.1\times10^{-3}$

$h''=0.76-0.027$

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Using formula of atmospheric pressure

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Put the value into the formula

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3 years ago

If the light wave has a wavelength of 10m what would be its velocity

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If this case could ever happen, the speed would follow from this formula:

$v = f \cdot \lambda$

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$v = 600THz\cdot 10m = 6\cdot 10^{14} \frac{1}{s}\cdot 10 m = 6\cdot10^{15}\frac{m}{s}$

The speed of such a wave would have to be 6e+15 m/s (which would be 7 orders of magnitude higher than the universal speed of light constant)

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3 years ago

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3 years ago

Calculate the magnitude and the direction of the resultant forces​

Calculate the magnitude and the direction of the resultant forces