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3 years ago

Which of the following is not a wave of the electromagnetic spectrum?

Physics

2 answers:

Musya8 [376]3 years ago

8 0

<h3>Answer;</h3>

Surface waves

<h3>Explanation;</h3>

Electromagnetic waves are those waves that do not require a material medium for transmission. These waves include; radio waves, x-rays, gamma rays, microwaves, etc.
These waves possess no mass, and despite having no mass they carry energy just like any other wave. They also travel at a velocity equivalent to the speed of light (3.0 × 10^8 m/s).
Together the electromagnetic waves form electromagnetic spectrum which consists of electromagnetic waves arranged in the order of varying frequencies and wavelengths. The waves in the electromagnetic spectrum includes, X-rays, Gamma rays, micro waves, infrared, ultraviolet radiation, visible light, and radio waves.

djyliett [7]3 years ago

6 0

The correct answer is surface wave

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A 2.00 kg block hangs from a spring balance calibrated in Newtons that is attached to the ceiling of an elevator.(a) What does t

tresset_1 [31]

Answer:

Part a)

$Reading = 2.00 kg$

Part b)

$Reading = 2.00 kg$

Part c)

$Reading = 4.04 kg$

Part d)

from t = 0 to t = 4.9 s

so the reading of the scale will be same as that of weight of the block

Then its speed will reduce to zero in next 3.2 s

from t = 4.9 to t = 8.1 s

The reading of the scale will be less than the actual mass

Explanation:

Part a)

When elevator is ascending with constant speed then we will have

$F_{net} = 0$

$T - mg = 0$

$T = mg$

So it will read same as that of the mass

$Reading = 2.00 kg$

Part b)

When elevator is decending with constant speed then we will have

$F_{net} = 0$

$T - mg = 0$

$T = mg$

So it will read same as that of the mass

$Reading = 2.00 kg$

Part c)

When elevator is ascending with constant speed 39 m/s and acceleration 10 m/s/s then we will have

$F_{net} = ma$

$T - mg = ma$

$T = mg + ma$

Reading is given as

$Reading = \frac{mg + ma}{g}$

$Reading = 2.00\frac{9.81 + 10}{9.81}$

$Reading = 4.04 kg$

Part d)

Here the speed of the elevator is constant initially

from t = 0 to t = 4.9 s

so the reading of the scale will be same as that of weight of the block

Then its speed will reduce to zero in next 3.2 s

from t = 4.9 to t = 8.1 s

The reading of the scale will be less than the actual mass

3 0

3 years ago

How much force is required to move a sled 5 meters if a person uses 60 j of work? 300N 12N 65N 30N

maksim [4K]

The answer is b 12N because
We know that
W = F × d × c o s(θ)
assuming theta=0 we then solve and have
F=W/d
substitute known values to get:
F=60J/5m=12N

4 0

3 years ago

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andrey2020 [161]

Answer:

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Explanation:

It's correct :)

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3 years ago

How long does it take anya to cover the distance of 5.00 miles ?

sammy [17]

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the calculation would be:

t = d / s 
t = 2.5 (half of the total distance) / 8.5 (speed of running) 
This is .294 hours which is about 1058s... 

for the walking part... 

t = d / s 
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3 years ago

What are dot diagrams in Physical Science?

s344n2d4d5 [400]

Answer:

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Explanation:

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3 years ago