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r-ruslan [8.4K]
3 years ago
9

An electromagnetic wave is produced by:

Physics
1 answer:
Ray Of Light [21]3 years ago
4 0
A. an accelerating charged charged particle or changing magnetic fields
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In the process of changing a flat tire, a motorist uses a hydraulic jack. She begins by applying a force of 48 N to the input pi
erik [133]

Answer:

Force that the output plunger applies to the car; F2 = 3888N

Explanation:

For a hydraulic device, the relationship between the force and the area using Pascal's principle is;

F1/A1 = F2/A2

Where;

F1 is force applied to the input piston

F2 is force that the output plunger applies to the car

A1 is Area of input piston

A2 is area of larger piston

We are given;

R2/R1 = 9

So,R2 = 9R1

F1 = 48N

Area of input piston;

A1 = π(R1)²

Area of output piston;

A2 = π(9R1)²

Since, (F1/A1) = (F2/A2)

Thus;

F1/(π(R1)²) = F2/(π(9R1)²)

If we simplify, π(R1)² will cancel out to give;

F1 = F2/9²

Thus;

F2 = 9² x F1

Plugging in 48N for F1, we have;

F2 = 9² x 48

F2 = 81 x 48

F2 = 3888N

8 0
3 years ago
If frequency increases, then wavelength _________.
marshall27 [118]

Answer

decreases

Explanation

Frequency and wavelength are inversely proportional to each other. And if wavelength increases, its frequency decreases.

7 0
3 years ago
Read 2 more answers
What kind of thermal radiation does the earth emit?
Alex

I would think it's generated by thermal motion of charged particles in matter

7 0
4 years ago
Mr. Rosa’s foot has an area of 0.4 meters squared. His kick can generate pressure up to 3567 Pa. How much force does one kick fr
yanalaym [24]

Answer:

1426.8 N

Explanation:

Pressure, P = 3567 Pa

The area of Mr. Rosa’s foot, A = 0.4 m²

We need to find the force does one kick from Mr. Rosa create. The pressure acting due to force is given by :

P=\dfrac{F}{A}

where

F is force

F=P\times A\\\\F=3567 \times 0.4\\\\F=1426.8\ N

So, the required force is 1426.8 N.

6 0
3 years ago
The amount of heat an object can give off depends on ______
LenKa [72]

Answer:

it's temperature and how big it is because it depends on temperature difference, nature of a substance and mass of a body

Explanation:

so u can answer based on this

5 0
3 years ago
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