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Morgarella [4.7K]
3 years ago
14

With a pulley system, a force of only 50 lb can lift a 500-lb weight. What is the mechanical advantage if this system is 100% ef

ficient
Physics
1 answer:
saw5 [17]3 years ago
3 0

Answer:

the mechanical advantage is 10

Explanation:

The computation of the mechanical advantage is as follows:

Mechanical advantage is

= Load ÷ Effort

where,

The Loan is equivalent to the weight i.e. 500 lb

And, the effort is equivalent to the force applied  i.e. 50lb

So, the mechanical advantage is

= 500 ÷ 50

= 10

Hence, the mechanical advantage is 10

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Vlad1618 [11]

Answer:

v = 45.37 m/s

Explanation:

Given,

angle of inclination = 8.0°

Vertical height, H  = 105 m

Initial K.E. = 0 J

Initial P.E. = m g H

Final PE = 0 J

Final KE = \dfrac{1}{2}mv^2

Using Conservation of energy

KE_i + PE_i + KE_f + PE_f

0 + m g H = \dfrac{1}{2}mv^2 + 0

v = \sqrt{2gH}

v = \sqrt{2\times 9.8 \times 105}

v = 45.37 m/s

Hence, speed of the skier at the bottom is equal to v = 45.37 m/s

3 0
2 years ago
what happens to the water after it rains? a. precipitation b. runoff c. condensation user: what do organisms from the ocean use
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The rain gets evaporated in to water vapor and is returned to the clouds where they go through condensation and then they poud down as rain or A.K.A,  Precipitation.
4 0
3 years ago
A jet can travel the 6000 km distance between washington,
Andrei [34K]
<span> d = r*t is the basic distance equation
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</span><span> 2s = 1800
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 Check the anwer by calculating the return trip.
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6 0
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HELP ASAP!!
andriy [413]

Answer:

This is false becuase different object weigh different

Thank you!

Explanation:

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You're walking in one direction, and then the exact opposite of that direction, so you simply have to subtract the two distances. 
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You're west because 200 meters west is greater than 150 meters east. If the distance walked east was greater than the distance walked west, you would've been east of your starting position.
6 0
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