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3 years ago

How many millimeters are 120 meters ? Help ! Please <3

Physics

2 answers:

blsea [12.9K]3 years ago

8 0

Answer:

120,000

Explanation:

Millimeters to meters calculation-

Multiply by 1,000.

120 x 1,000 = 120,000.

This is the correct answer and formula.

Hope this helps!

natulia [17]3 years ago

4 0

The answer is 120000

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3 years ago

How many times should the power develop by the engine of a ship increases to double is velocity i the resistance of the water to

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3 years ago

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natta225 [31]

Answer:

5.0 m/s

Explanation:

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$d=v_x t = (ucos \theta)t$

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$t=\frac{d}{v_x}=\frac{d}{u cos \theta}$ (1)

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$y=h+u_y t -\frac{1}{2}gt^2$

where:

y = 0.311 m is the final height reached by the salmon

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$y=(u sin \theta) \frac{d}{u cos \theta}- \frac{1}{2}g\frac{d^2}{u^2 cos^2 \theta}=d tan \theta - \frac{1}{2}g\frac{d^2}{u^2 cos^2 \theta}$

and we can solve this formula for u, the initial speed of the salmon:

$y=d tan \theta - \frac{1}{2}g\frac{d^2}{u^2 cos^2 \theta}\\\\u=\sqrt{\frac{gd^2}{2(dtan \theta -y)cos^2 \theta}}=\sqrt{\frac{(9.81)(1.95)^2}{2((1.95)(tan 37.7^{\circ}) -0.311)cos^2 37.7^{\circ}}}=5.0 m/s$

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3 years ago

75kg man climbs a mountain 1000m high in 3hrs and uses 4100 joulse/min. (a) calculate the power consumption in watt, (b) what is

mr Goodwill [35]

Answer:

Explanation:

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work done raised the potential energy

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c) efficiency is 68.1 / 68.3 = 0.99593... or nearly 100%

Not a very likely scenario.

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3 years ago