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liberstina [14]
2 years ago
14

Calculate the mechanical advantage if a machine allows you to move a 60 newton rock by only exerting 15 newtons of force.

Physics
2 answers:
murzikaleks [220]2 years ago
6 0

Answer:

4 Newtons

Explanation:

  • I think it's 4 because mechanical advantage = output force/input force
  • So, it would be 60/15, which is 4 newtons
allochka39001 [22]2 years ago
5 0

Answer:

4

Explanation:

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A small fan has blades that have a radius of 0.0600 m. When the fan is turned on, the tips of the blades have a tangential accel
zhuklara [117]

Answer:

α = 395 rad/s²

Explanation:

Main features of uniformly accelerated circular motion

A body performs a uniformly accelerated circular motion   when its trajectory is a circle and its angular acceleration is constant  (α = cte). In it the velocity vector is tangent at each point to the trajectory and, in addition, its magnitude varies uniformly.

There is tangential acceleration (at) and is constant.

at = α*R     Formula (1)

where

α  is the angular acceleration

R is the radius of the circular path

There is normal or centripetal acceleration that determines the change in direction of the velocity vector.

Data

R = 0.0600 m   :blade radius

at = 23.7 m/s² : tangential acceleration of the blades

Angular acceleration of the blades (α)

We replace data in the formula (1)

at = α*R  

23.7 = α*(0.06)

α = (23.7) / (0.06)

α = 395 rad/s²

7 0
2 years ago
Must new substances be formed when you observe a chemical property? Explain
castortr0y [4]
Yes. It is rather a natural phenomenon. If you search and understand the process of chemical change or reaction that results to its chemical property outcome, it has a new formed substance. Unlike physical change or reaction it only changes in shape or form but the substance, compound or element in the matter is till the same. Furthermore, when chemical change is undergoing you notice the change in shape, size and from like the physical change but there is a change in the element, compound or substance. When you lit a fire on a paper the fire disorients, disorganizes and disturb the former positions of the atoms and because of the fire as catalyzer the atoms did its behavior –changing both intrinsic and extrinsic.



5 0
2 years ago
When you jump,you push the earth downward.Why can’t you tell that the earth has moved?
Nonamiya [84]

The movement of the earth is so small, especially compared to you, that you don't realize it. This is because the earth's mass is so much greater than your mass.

4 0
2 years ago
A 20 gram bullet exits the rifle at a speed of 985 m/s. The gun barrel is 0.8 m long. What
borishaifa [10]

Answer:

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Explanation:

7 0
2 years ago
Don’t get it hsnnakslldioksksk
bogdanovich [222]

Answer:

D. momentum

Explanation:

Momentum is the product of velocity and mass which is the two variables the paragraph talked about.

7 0
2 years ago
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