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Anton [14]
3 years ago
10

What is velocity ratio ?​

Physics
1 answer:
Rasek [7]3 years ago
5 0

The ratio of the distance moved by the point at which the effort is applied in a simple machine to the distance moved by the point at which the load is applied, in the same time. In the case of an ideal (frictionless and weightless) machine, velocity ratio = mechanical advantage. Velocity ratio is sometimes called distance ratio.

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A student performs an activity using a sheet of paper, a magnet, and a steel ball. The image shows the setup. The student observ
son4ous [18]

Answer:b

Explanation:

6 0
3 years ago
Read 2 more answers
Find the pressure exerted by a force 8000 newton's on an area of 25m^2. Give your answer in newton's/n^2
Vanyuwa [196]

The pressure exerted by this force is equal to 320 N/m^2.

<u>Given the following data:</u>

  • Force = 8000 Newton.
  • Area = 25 m^2.

To calculate the pressure exerted by this force:

<h3>How to calculate pressure.</h3>

Mathematically, pressure is given by this formula:

P=\frac{F}{A}

<u>Where:</u>

  • P is the pressure.
  • F is the force.
  • A is the area.

Substituting the given parameters into the formula, we have:

P = \frac{8000}{25}

P = 320 N/m^2.

Read more on pressure here: brainly.com/question/8033367

5 0
2 years ago
A wooden cylinder of length L and cross-sectional area A is partially submerged in a liquid with the axis of the cylinder orient
SCORPION-xisa [38]

Answer:

F=\rho_LAdg

Explanation:

The buoyant force F is equal to the weight of the displaced fluid. The weight of the displaced fluid is W=m_dg, where m_d is the mass of the displaced fluid. The mass of the displaced fluid is m_d=\rho_LV_d, where \rho_L is the density of the fluid and V_d is the displaced volume, which is equal to the submerged volume of the cilinder V_d=V_s=Ad.

Putting all together we have:

F=W=m_dg=\rho_LV_dg=\rho_LAdg

7 0
3 years ago
What is the net work done on the 20kg block while it moves the 4 meters?
Vinil7 [7]

Answer:

The answer to your question is 784.8 J. None of your answer, did you forget some information?

Explanation:

Data

mass = 20 kg

distance = 4 m

work = ?

Formula

Work = force x distance

Force = mass x gravity

Process

1.- Calculate the weight of the block

     Weight = 20 x 9.81

     Weight = 196.2 N

2.- Calculate the work done

     Work = 196.2 x 4

     Work = 784.8 J

5 0
3 years ago
What is the kinetic energy of an object moving 40m/s with a mass of 20kg?
Svet_ta [14]
KE = (1/2) (mass) (speed)²

KE = (1/2) (20 kg) (40 m/s)²

KE = (1/2) (20 kg) (1,600 m²/s²)

KE = (10 kg) (1,600 m²/s²)

KE = 16,000 Joules
7 0
3 years ago
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