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yanalaym [24]
3 years ago
6

1

Physics
1 answer:
s344n2d4d5 [400]3 years ago
8 0

Answer:

\large \boxed{\mathrm{40 \ Nm}}

Explanation:

\sf Moment \ (Nm) = Force \ (N) \times Distance \ from \ pivot \ (m)

M=20 \times 2

M=40

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Using a horizontal force of 200N,we intend to move a wooden cabinet across a floor at constant velocity.What is the friction for
IgorLugansk [536]

Answer:

-200 N

Explanation:

The cabinet moves at constant velocity, so that means there's no acceleration.

Applying Newton's second law to the cabinet:

∑F = ma

F + 200 = 0

F = -200

The friction force is 200 N in the opposite direction.

8 0
3 years ago
An overhead electric power line carries a maximum current of 125 A. What is the magnitude of the maximum magnetic field at a poi
BARSIC [14]

Answer:

B= 55.6×10^(-7) Tesla

Explanation:

B= μoI/(2πr)

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μo: permeability of free space and is equal to  4π×10^(-7) T.m/A

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3 0
3 years ago
Because the pressure falls, water boils at a lower temperature with increasing altitude. Consequently, cake mixes and boiled egg
AlexFokin [52]

Answer:

1) The boiling point of water reduces by 3.28°C at 1,000 m above sea-level

2) The boiling point of water reduces by 6.56°C at 2,000 m above sea-level

Explanation:

The variation of the boiling point of water with elevation is given as follows

The boiling point reduces by 0.5°C for every 152.4 meter increase in elevation

At sea-level, the boiling point temperature of water = 100°C

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Therefore, the boiling point of water reduces by 100° - 96.72° = 3.28°C at 1,000 m above sea-level

2) At 2,000 m elevation, the boiling point temperature, T = 100 - (2,000/152.4) × 0.5 ≈ 93.44°C

The boiling point of water reduces by 100° - 93.44° = 6.56°C at 2,000 m above sea-level

7 0
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Liters

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7 0
3 years ago
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yes it does it because the material cause it to refract and the stronger it is the more it will refract

4 0
3 years ago
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