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lozanna [386]
3 years ago
10

Which types of electromagnetic waves have wavelengths that are longer than those of visible light but shorter than those of micr

owaves?
gamma rays
X-rays
infrared light
radio waves
Physics
2 answers:
abruzzese [7]3 years ago
7 0

Answer: The correct option is infrared light.

Explanation:

Electromagnetic wave is the wave in which both magnetic field and the electric field are mutually perpendicular to the direction of the propagation of the wave. It travels with the speed of the light.

It is transverse in nature. It does not need any medium to travel.

The infrared light of electromagnetic wave has wavelength that is longer than the visible light but shorter than the microwave.

The range of the wavelength of the infrared light is 700 nm to 1 mm.

Therefore, the correct option is infrared light.

Kaylis [27]3 years ago
5 0
The answer C) Infrared light
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A rock is lifted by a machine to a height of 10m. If it has a mass of 22 kilograms
zmey [24]

Answer:

2156J

Explanation:

Given parameters:

Height of lift  = 10m

Mass  = 22kg

Unknown:

Work done by the machine  = ?

Solution:

Work done is the force applied to move a body through a certain distance.

So;

        Work done  = Force x distance

Here;

       Work done  = mass x acceleration due to gravity x height

      Work done  = 22 x 9.8 x 10  = 2156J

5 0
3 years ago
A circular loop of wire with radius r=0.0250 m and resistance r=0.390 ohms is in a region of spatially uniform magnetic field. t
slavikrds [6]

Answer:

0.0133 A

Explanation:

The time at which B=1.33 T is given by  

1.33 = 0.38*t^3  

t = (1.33/0.38)^(1/3) = 1.52 s  

Using Faraday's Law, we have  

emf = - dΦ/dt = - A dB/dt = - A d/dt ( 0.380 t^3 )  

Area A = pi * r² = 3.141 *(0.025 *0.025) = 0.00196 m²

emf = - A*(3*0.38)*t^2  

thus, the emf at t=1.52 s is  

emf = - 0.00196*(3*0.38)*(1.52)^2 = -0.0052 V  

if the resistance is 0.390 ohms, then the current is given by  

I = V/R = 0.0052/0.390 = 0.0133 A

3 0
3 years ago
A student's blaring trumpet<br> Is what type of energy
bixtya [17]

Answer:

a blaring trumpet is sound energy

Explanation:

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2 years ago
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3 years ago
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There is less oxygen in air at higher altitudes than at sea level. Scientists have shown that people living at sea level have 5
Ivanshal [37]

Answer with Explanation:

"Red Blood Cells" <em>(RBCs)</em> contain <em>Hemoglobin</em> that is responsible for carrying oxygen into the body. When people are exposed to higher altitudes, <u>the number RBCs in the body increases</u>. This is because the body has a hard time taking in oxygen due to <u>low atmospheric pressure</u>. It makes it hard for oxygen to pass through the lung membranes. This is called "hypoxia." Such condition deprives the body from oxygen, thus, it creates more red blood cells in order to compensate the condition.

When it comes to people living at sea level,<em> the oxygen can easily pass through the lung membranes</em> due to <u>higher atmospheric pressure.</u> This doesn't require the body to build new RBCs. Therefore, the numbers of RBCs needed by people to thrive is lower than living at higher altitudes.

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3 years ago
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