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weqwewe [10]
3 years ago
8

Which of these could NOT be used to find the mechanical advantage of an inclined plane?

Physics
1 answer:
34kurt3 years ago
8 0
The "c) percent efficiency" could not be used to find the mechanical advantage of an inclined plane. There are two formulae that could be used to determine the mechanical advantage of an inclined plane which stated as MA = Length/rise and Wout=Win. MA is the mechanical advantage, Wout is the output force, Win is the input force, and "rise" is the height of the inclined plane<span>.</span>
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Rus_ich [418]

Answer:

Explanation:

Pascal's law states that when there is an increase in pressure at any point in a confined fluid, the pressure is equally distributed at every other point in the container.

The formulas that relate to this are given below:

P1 = P2 (since the pressures are equal throughout).

P2 is the pressure transmitted in the hydraulic system

N.B : P= Force/ Area

Therefore we have  

F1/A1 = P2

F1= the force exerted by the driver = 100N  

P2= 100/A1 N/m² or 100/A1 pa or 100/(101325× A1) atm

3 0
4 years ago
If you toss a ball straight upward at 40 m/s with no air resistance, what will be its speed 2 seconds later? Explain your answer
Kamila [148]

Answer:

Final speed of the ball, v = 20 m/s.

Explanation:

It is given that,

Initial speed of the ball, u = 40 m/s

Time. t = 2 s

We need to find the speed of the ball after 2 seconds. Let it is denoted by v. It can be calculated using first equation of motion as :

v=u+a\times t

Here, a = -g, as the ball is ball is moving under the action of gravity.

v=u-g\times t

v=40-10\times 2

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So, the speed of the ball after 2 seconds is 20 m/s. Hence, this is the required solution.

8 0
4 years ago
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andrew-mc [135]

Answer:

2.16 x 10^7 years

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R = 6.9 x 10^20 m

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3 0
3 years ago
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