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deff fn [24]
2 years ago
8

Question 1 of 5 In which way are electromagnetic waves different from mechanical waves?

Physics
2 answers:
Lina20 [59]2 years ago
8 0

Answer:

Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

Explanation:

WINSTONCH [101]2 years ago
7 0

Answer:

In which way are electromagnetic waves different from mechanical waves?Electromagnetic waves can travel through empty space

Explanation:

I took A P E X Quiz.

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A passenger train left station A at 6:00 p.m. Moving with the average speed 45 mph, it arrived at station B at 10:00 p.m. A tran
marishachu [46]
<h2>Average speed of transit train is 60 mph</h2>

Explanation:

Average speed of passenger train = 45 mph

Time taken from station A to station B for passenger train  = 10:00 - 6:00 = 4 hours

Distance between station A to station B = 45 x 4 = 180 miles.

Time taken from station A to station B for transit train  =  4 - 1 = 3 hours

Distance between station A to station B = Average speed of transit train x Time taken from station A to station B for transit train

180 = Average speed of transit train x 3

Average speed of transit train = 60 mph

Average speed of transit train is 60 mph

8 0
3 years ago
What is the measure of a specific material’s ability to insulate charges from each other?
Elodia [21]
B.dielectric constant
3 0
3 years ago
Read 2 more answers
A 50.0-kg girl stands on a 9.0-kg wagon holding two 13.5-kg weights. She throws the weights horizontally off the back of the wag
Kobotan [32]
Do you still need help with this question??
5 0
2 years ago
A(n) 0.49 kg softball is pitched at a speed of 13 m/s. The batter hits it back directly at the pitcher at a speed of 23 m/s. The
garik1379 [7]
<h2>Impulse  = 4.9 kgm/s</h2>

Explanation:

Impulse is given by change of momentum.

Mass of softball = 0.49 kg

Initial velocity of softball = 13 m/s

Initial momentum = 0.49 x 13 = 6.37 kgm/s

Final velocity of softball = 23 m/s

Final momentum = 0.49 x 23 = 11.27 kgm/s

Change of momentum = Final momentum - Initial momentum

Change of momentum = 11.27 - 6.37

Change of momentum = 4.9 kgm/s

Impulse = Change of momentum

Impulse  = 4.9 kgm/s

4 0
2 years ago
A wind is blowing a small ice fishing shed along the ice to the east with a 800N force. The shed weighs 2,200N. What would the l
e-lub [12.9K]

Answer:

0.36

Explanation:

The maximum force of friction exerted by the surface is given by:

F_f = \mu N (1)

where

\mu is the coefficient of friction

N is the normal reaction

The shed's weight is 2200 N. Since there is no motion along the vertical direction, the normal reaction is equal and opposite to the weight, so

N = 2200 N

The horizontal force that is pushing the shed is

F = 800 N

In order for it to keep moving, the force of friction (which acts horizontally in the opposite direction) must be not greater than this value. So the maximum force of friction must be

F_f = 800 N

And substituting the values into eq.(1), we can find the maximum value of the coefficient of friction:

\mu = \frac{F_f}{N}=\frac{800}{2200}=0.36

6 0
3 years ago
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