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olga2289 [7]
3 years ago
5

What an object is made of and the color of light that strikes it determine the

Physics
1 answer:
Aliun [14]3 years ago
4 0
D. <span>apparent color of the object</span>
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The peak magnetic field strength in a residential microwave oven is 9. 2 x 10-5 t. what is the intensity of the microwave?
Alexandra [31]

The intensity of the microwave is 10.09 × 10⁵ W/m².

The unit of magnetic induction is the tesla (T). The magnetizing force, which induces the lines of force through a material, is called the field intensity, H (or H-field), and by convention has the units ampere per meter (A m−1) .

The portion of a material's magnetic field that results from an external current and is not intrinsic to the material itself is known as the magnetic field strength, also known as magnetic intensity or magnetic field intensity. It is measured in amperes per meter and represented as the vector H.

Magnetic Field, B = 9.2 × 10⁻⁵ T

I_{avg} = \frac{CB_0^2}{2\mu _0}

       = \frac{(2.998*10^8 m/s) (9.2 * 10^-^5 T)^2}{2 ( 4\pi  * 10^-^7)}

      = 10.09 × 10^5 \frac{W}{m^2}

Therefore, the intensity of the microwave is 10.09 × 10⁵ W/m².

Learn more about intensity here:

brainly.com/question/24319848

#SPJ4

7 0
2 years ago
C
Ivahew [28]

Explanation:

Speed = distance / time

v = 560 m / 25 s

v = 22.4 m/s

8 0
4 years ago
Because the __ signal changes smoothly, like a sine wave, it can closely mimic a human voice. However, part of the signal can ea
Naya [18.7K]

Answer:

Analog,Noise,Digital,less

Explanation:

Analog signal changes continuously with time and moves smoothly.

Due to this analog signal can easily disturbed by noise.

Since digital signal are like square wave due to this digital signals are less affected by noise.

Because the Analog signal changes smoothly, like a sine wave, it can closely mimic a human voice. However, part of the signal can easily get lost to Noise. Because Digital signals are on or off, like a square wave, they best carry information that can easily be converted into numbers. These signals are less affected by noise.

7 0
3 years ago
Anyone taking IB Physics?
Andreas93 [3]

Yes, how can I help you?

3 0
3 years ago
The car was initally traveling at 25 m/s. The car slows with a negative acceleration as shown. How long does it take the car to
Karolina [17]

Answer:

<h2>t = 2.35s</h2>

Explanation:

Using one of the equation of motion expressed as v = u+at where;

v is the final velocity = 2.0m/s

u is the initial velocity = 25m/s

a is the acceleration = -a (since the acceleration is negative)

t is the time taken

Substituting the given parameters into the formula above;

2.0 = 25-9.81t

subtract 25 from both sides

2.0 - 25 = 25-9.81t - 25

-23 = -9.81t

Divide both sides by -9.81

-23/-9.81 = -9.81t/-9.81

t = 23.0/9.81

t = 2.35s

<em>Hence it took the car 2.35s to slow to a final velocity of 2.0 m/s</em>

4 0
3 years ago
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