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Verdich [7]
3 years ago
15

What type of wave is sound? A.Gamma B.electromagnetic C.light D.pressure

Physics
2 answers:
daser333 [38]3 years ago
8 0
The answer is b)electromagnetic
Mademuasel [1]3 years ago
7 0
I think it is electromagnetic wave if im not mitaken..
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When charged objects are brought close (not touching) to uncharged objects, what occurs?
seraphim [82]
They will become equally negative charges, I believe.
6 0
3 years ago
If a car has a velocity of 85 km/hr, how long will it take to accelerate to 45 km/hr if the acceleration is -3 km/hr/sec?
weqwewe [10]

Answer:

Time, t = 13.34 seconds.

Explanation:

Given the following data;

Initial velocity, u = 85km/hr to meters per seconds = 85*1000/3600 = 23.61 m/s

Final velocity, v = 45km/hr to meters per seconds = 45*1000/3600 = 12.5 m/s

Acceleration, a = -3 km/hr/sec to meters per seconds square = -3*1000/3600 = -0.833m/s²

To find the time;

Acceleration = (v - u)/t

-0.833 = (12.5 - 23.61)/t

-0.833t = -11.11

t = 11.11/0.833

Time, t = 13.34 seconds.

6 0
3 years ago
What is the number “4” in SiCl4? a subscript a coefficient a product a reactant
Svetlanka [38]

Answer: 4 is the subscript in SiCl_{4}.

Explanation:

We know that,

Subscript: The number of atom present in a given compound.

In SiCl_{4}, 4 represents the number of chlorine atom in 1 mole of Silicon tetra chloride.

Coefficient: Number of atom which is used in reaction.

For example: In 3SiCl_{4}, 3 is the coefficient of silicon tetra chloride.

A Product : In the balance equation, right hand side is called product.

A reactant : In the balance equation, left hand side is called reactant.

For example: the balance equation is

2Mg+O_{2}\rightarrow 2MgO

In this equation, 2Mg+O_{2} is the reactants and 2MgO is products.

Hence, 4 is the subscript in SiCl_{4}.

4 0
3 years ago
Read 2 more answers
The 3 states of mater are
lesantik [10]

Answer:

if u are talking about science this is the answer solid, liquid, or gas

4 0
3 years ago
Read 2 more answers
10. Draw the vector V and find the magnitude and direction, counter clockwise from the +x-axis.
Harman [31]

Answer:

v3784x/^&435 88888888888

7 0
3 years ago
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