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suter [353]
3 years ago
8

Three balls with the same radius 21 cm are in water. Ball 1 floats, with

Physics
1 answer:
Masteriza [31]3 years ago
7 0

Answer:

Explanation:

A )

The ball floats with half of it exposed above the water level . So it must have density half that of water . In other words its density must have been 500 kg / m³

B )

Tension in the ball will be equal to net force acting on the ball

Net force on the ball = buoyant force - weight .

4/3 x π x .21³ x 10⁻⁶ x 9.8 ( 1000 - 893 )

= 40.65 x 10⁻⁶ N .

C )Tension in the 3 rd  ball will be equal to net force acting on the ball

Net force on the ball =  weight  - buoyant force

= 4/3 x π x .21³ x 10⁻⁶ x 9.8 ( 1320 - 1000  )

=  121.6  x 10⁻⁶ N .

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Carbon capture is the safest way to capture emission.

<u>Explanation:</u>

Emission of green house gases is one of the most lurking threat above humans. So one of the best ways to reduce emission is to capture the gases like carbon di-oxide or carbon monoxide, nitrous oxide etc. So mostly, the carbon di-oxide gas which is produced as waste is captured using adsorption, absorption, chemical looping etc.

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3 years ago
Difference between displacement time graph and velocity time graph.​
marishachu [46]

Answer:

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2 years ago
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3 years ago
What is the period of a pendulum that takes 3 seconds to move forward, and another 3 seconds to come back?
Serga [27]

The period of the pendulum is 6 seconds.

<h3>What is period?</h3>

Period is the time taken for a simple pendulum to move to(forward) and fro(backward). The s.i unit of period is seconds(s).

Note: When a simple pendulum moves to and fro. it completes one cycle.

From the question, The period of the pendulum is calculated using the formula below.

<h3>Formula</h3>
  • T = a+b.............. Equation 1

Where:

  • T = Period of the pendulum
  • a = Time taken for the pendulum to move forward
  • b = Time taken for the pendulum to move backward.

From the question,

Given:

  • a = 3 seconds
  • b = seconds

Substitute the values above into equation 1

  • T = 3+3
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Hence, The period of the pendulum is 6 seconds.

Learn more about period here: brainly.com/question/21924087

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3 years ago
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Elena-2011 [213]

Answer:

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Explanation:

hope this helped ✨

8 0
4 years ago
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