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Klio2033 [76]
3 years ago
10

Sound is a type of mechanical wave and must have a medium through which to travel. Sound will move at different speeds when whic

h of the following occurs?
A. The sound is fully absorbed in an object.

B. The sound moves from air to water.

C. The sound pitch increases.

D. The sound is reflected off a surface.
Physics
1 answer:
Alex787 [66]3 years ago
5 0
Hey there!

The answer would be B. The sound moves from air to water.

Sound travels through different mediums. It goes fastest in solids, a little slower in liquids, and slowest in air. Sound is a very fast wave, but remember that mediums can differ that. In a vacuum space, there is no sound at all. (ex. outer space)

Hope this helps !
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The gravitational force between a mass and the Earth is the object'sweight. Mass is considered a measure of an object's inertia, and its weight is the force exerted on the object in a gravitational field. On the surface of the Earth, the two forces are related by the acceleration due to gravity: Fg = mg.

Hoped this helped!
6 0
3 years ago
What is the volume of an irregularly shaped object that has a mass 3.0 grams and a density of 6.0 g/mL
pogonyaev

Answer: The volume of an irregularly shaped object is 0.50 ml

Explanation:

To calculate the volume, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

Density of object = 6.0g/ml

mass of object = 3.0 g

Volume of object = ?

Putting in the values we get:

6.0g/ml=\frac{3.0g}{\text{Volume of substance}}

{\text{Volume of substance}}=0.50ml

Thus the volume of an irregularly shaped object is 0.50 ml

4 0
3 years ago
Calculate the density of a material that has a mass of 52.457 and a volume of 13.5
Arte-miy333 [17]
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7 0
3 years ago
Operational definition for a messy person
tiny-mole [99]

Answer:

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Read 2 more answers
Two positive charges of magnitude 20 micro C and 100 micro C are placed at a distance of 150cm. Calculate the electric force of
Westkost [7]

Answer:800N

Explanation:

Force of repulsion = kq1q2/r^2

Q1= 20*10^-6

Q2=100*10^-6

R=150cm=0.15m

K= 9*10^9

F= 2*10^-5*1*10^-4*9*10^9/(0.15)^2

F= 2*1*9*10^-5-4+9/(0.15)^2

F= 18*10^0/(0.15)^2

F=18/0.0225

F=800N

7 0
4 years ago
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