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Cerrena [4.2K]
2 years ago
8

1.1

Physics
1 answer:
podryga [215]2 years ago
7 0

  • Biosphere: The living spaces of living and non-living things are called habitats.
  • Ecosystem: They are natural areas where living and non-living interactions occur.
  • Hydrosphere: Water is sphere. It is the layer formed by water bodies such as oceans and seas in the world.
  • Lithosphere: It is a stone sphere. It is the layer formed by rock and terrestrial regions in the world.
  • Atmosphere: Air is sphere. It is the layer on Earth where we can breathe and absorb ozone rays. The troposphere consists of the stratosphere, the mesosphere, and the thermosphere.
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A 6kg rock rolls down a hill with a momentum of 12kg m/s . Work out the velocity of the rock
Nat2105 [25]

Answer:

if you need to get the work=force×displacement or if you need the velocity=displacement÷time taken

7 0
2 years ago
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You have two windlasses (winches) named X and Y. Windlass X drum diameter is 50cm and windlass Y drum diameter is 75cm. Both are
Blababa [14]

You have two windlasses  named X and Y. Windlass X drum diameter is 50cm and windlass Y drum diameter is 75cm. Both are hoisting a 50kg weight, Hence, X will lift faster and easier than Y

<h3>What is windlasses (winches) will lift faster?</h3>

Generally, the equation for the Torque is  mathematically given as

Torque(X)=weight x radius of drum

T=50x9.81x0.25

T=122.625 Nm

For, Torque (Y)

T=50x9.81x0.375

T=183.93 Nm

Generally, the equation for the Equation of Power is  mathematically given as

P= Torque * Angular velocity

Angular velocity (w)= 2 x pi x N/60

As a consequence, torque has an inverse relationship to speed. Because of this, the torque will decrease as the speed rises.

According to the previous statement, windlass X has a speed of lift that is at its maximum, but windlass Y has a speed that is very low.

Additionally, power is exactly proportional to torque, which means that the highest possible torque required the highest possible amount of energy and vice versa.

Therefore, X should raise at the highest possible speed while using the least amount of energy.

In conclusion, X will lift faster and easier than Y

Read more about windlasses

brainly.com/question/14289204

#SPJ1

4 0
1 year ago
You send a beam of light from a material with index of refraction 1.21 into an unknown material. In order to help identify this
White raven [17]

Answer:

refractive index of the unknown material is 1.33.

Explanation:

μ₁ = 1.21

incidence angle (i) = 41.9°

refraction angle (r) = 37.3°

Let us assume μ be the refractive index of the unknown material

according to snell's law of refraction.

μ₁ sin i = μ₂ sin r

1.21 × sin 41.9° =  μ × sin 37.3°

μ = 1.33

hence the refractive index of the unknown material comes out top be 1.33

6 0
3 years ago
Cosmologists study ______.
____ [38]

Your answer is:

<em>The origin, structure, and future of the universe</em>

You can just search up the definition of Cosmology and receive your answer. Hopefully this helps at least a little :3

6 0
3 years ago
Read 2 more answers
What is the total current for the circuit? (must include unit - A) I WILL GIVE BRAINLIEST!
Iteru [2.4K]

Answer:2 amperes

Explanation:

Voltage=120v

Total resistance=15+15+30

Total resistance=60 ohms

Current=voltage ➗ resistance

Current=120 ➗ 60

Current=2 amperes

3 0
3 years ago
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