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lilavasa [31]
2 years ago
9

How does torque of rotating body relate to velocity

Physics
1 answer:
Fudgin [204]2 years ago
8 0

Answer:

We know that the torque can be calculated as follows:

T = rpsinα

With r being the distance of the body from the center of the circumference he has as trajectory, p being the momentum of the body and sinα being the sine of the angle between the 2 vectors: r and p.

It's pretty obvious that T is directly proportional to the momentum, that can be written as p = m·v, with m being the mass of the object and v the velocity of the object.

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What is the current in a series circuit that has two resistors (4.0 ohms and 7.5 ohms) and a power source of 9.0 volts?
Olin [163]

-- First, we have to decide how to handle the two resistors.

The effective resistance of resistors in series is the sum
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So in this question, the 4.0 ohms and the 7.5 ohms act like a
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-- The current in the circuit is

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                   =                (9.0 volts)  /  (11.5 ohms)

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3 0
3 years ago
Read 2 more answers
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Shalnov [3]

Answer:

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strain calculation

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strain for offset yield point

\varepsilon_{new} = \varepsilon_0 -0.002

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d) percentage elongation

\% Elongation = \dfrac{L-L_0}{L_0}\times 100 = \dfrac{67.3-50}{50}\times 100 = 34.6\%

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\% Area\ reduction = \dfrac{A-A_f}{A}\times 100=\dfrac{100-53}{100}= 47 \%                            

7 0
3 years ago
What is the mass of a cannonball if the force a force of 2500 N gives the cannonball an acceleration of 200 m/s^2??
vampirchik [111]

The answer is a.12.5kg because i just did the test and it was correct.

hope this helps


5 0
3 years ago
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andrezito [222]
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7 0
3 years ago
an ice skater applies a horizontal force to a 20.-kilogram block on frictionless, level ice, causing the block to accelerate uni
stiv31 [10]
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3 0
3 years ago
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