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Wewaii [24]
4 years ago
11

Name 2 ways that sound waves and electromagnetic waves are different. Describe specifically.

Physics
1 answer:
Vlad1618 [11]4 years ago
6 0

Answer:Sound waves are longitudinal waves that is, are transmitted in the same direction of oscillation of the particles in the medium. Electromagnetic waves are transverse ie, the electric and magnetic fields, which are perpendicular to each other, oscillate perpendicularly to the direction of wave propagation.

Explanation:

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Dr. Potter provides vaccinations against polio and measles.
vaieri [72.5K]

Answer:

hi zzayn i will solve this later

Explanation:

Let's establish that x= number of polio vaccinations and y=number of measles vaccinations.

Since Dr. P gave a total of 60 VACCINATIONS, we know that x+y=60. (This is equation #1)

We also know that Dr. P gave a total of 184 DOSES of the vaccinations and that the polio vaccine has 4 doses, while the measles vaccine has 2 doses. This means that our second equation is 4x+2y=184. (This is equation #2)

You can get either variable (x or y) by itself from equation #1. I always choose x.

x+y=60

-y.     -y

x=60-y

Now we can plug our x value into equation #2.

4x+2y=184

4(60-y)+2y=184

240-4y+2y=184

240-2y=184

-240    -240

-2y=-56

/-2 /-2

y=28 measles vaccines

So we know that Dr. P administered 28 measles vaccines. We need to plug our y value back into equation #1 (or, to make it easier, our switched around equation) to find the number of polio vaccines.

x=60-y

x=60-28

x=32 polio vaccines

3 0
3 years ago
Read 2 more answers
A solenoid field is:
Bumek [7]

increased with an increased current flow

7 0
3 years ago
A coil of wire that is carrying a current and produces a magnetic field is
snow_tiger [21]
Answer:

Solenoid is the correct answer
4 0
4 years ago
Read 2 more answers
(15 points) :^|
mihalych1998 [28]
That is FALSE. The equation to calculate the charges has a distance component that is in the denominator which means that it is inversely proportional (as the distance os greater the force is smaller)
7 0
3 years ago
A cat, which mass 2.5 kg walks on a uniform plank of 4.0m long and mass 6.0kg. Two sawhorses at 0.3m and 2.4m from its right end
Soloha48 [4]

Answer:

Explanation:

Let when cat reaches the point L distance from the right end , the plank starts turning about the left sawhorse.

The weight of the plank will at at middle point , ie at 2 m from the right end .

The plank will turn about the left sawhorse . Taking torque about this point of weight of the plank and weight of the cat , we have

2.5 g x ( L - 2.4 ) = 6 x g x ( 2.4 - 2.0 )

2.5 L - 6 = 14.4 - 12

2.5 L = 8.4

L = 3.36

position from left sawhorse = 3.36 - 2.4 = .96 m to the left of left sawhorse.

8 0
4 years ago
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