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m_a_m_a [10]
3 years ago
14

suppose a lever lets you lift a rock weighing 60 newtons when you apply an effort force of 12 newtons. what is the levers mechan

ical advantage
Physics
1 answer:
Furkat [3]3 years ago
7 0
Mechanical advantage = (output force) / (input force)

Mechanical advantage = (60 N) / (12 N)

Mechanical advantage = 5.0
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Otion
Scorpion4ik [409]

Answer:

SKID

Explanation:

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Let's use Newton's second law, let's set a reference frame with the horizontal x-axis and the vertical y-axis.

Y axis y

     N- W = 0

     N = W

X axis (radial)

        fr = m a

the acceleration in the curve is centripetal

         a = \frac{v^2}{r}

the friction force has the expression

        fr = μ N

we substitute

       μ mg = m v²/r

       v = \sqrt{\mu g r}

we calculate

      v = \sqrt{0.1 \ 9.8 \ 3}

      v = 1,715 m / s

to compare with the cyclist's speed let's reduce to the SI system

        v₀ = 18 km / h (1000 m / 1 km) (1 h / 3600 s) = 5 m / s

We can see that the speed that the cyclist is carrying is greater than the speed that the curve can take, therefore the cyclist will SKID

5 0
3 years ago
1. Our entire solar system orbits around the center of the about once every 230 million years. 2. The Milky Way and Andromeda ga
bekas [8.4K]

Answer: sorry mate but what's the question here tho?

Explanation:

7 0
3 years ago
The work-energy theorem states that a force acting on a particle as it moves over a ______ changes the ______ energy of the part
kifflom [539]
Over a DISTANCE 
Changes the KINETIC Energy
6 0
3 years ago
A standing wave is established on a string that is fixed at both ends.
oksano4ka [1.4K]

Answer:

d. The length of the string is equal to one-half of a wavelength.

Explanation:

For a standing waves vibrating with Fundamental Frequency will be vibrate in one loop so  Length 2 L =  λ    ⇒  L = 1/2 λ

7 0
3 years ago
Read 2 more answers
A water tank is in the shape of an inverted cone with depth 10 meters, and top radius 8 meters. Water is flowing into the tank a
Elis [28]

Answer:

The value of leaking rate in the question is repeated. By searching on the web I could find the correct value wich is 0.002h^2 m^3 /min.

The depth of the water has to be equal to 7.07 m in order to have a stationary volume.

Explanation:

In order to have a stationary water level the flow of water that comes into the tank (0.1 m^3/min) must be equal to the flow of water that goes out of the tank (0.002*h^2 m^3/min), therefore:

0.002*h^2 = 0.1

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h = sqrt(50) = 7.07 m

7 0
3 years ago
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