Based on the type of medium, what can you assume about the speed of sound in glass?

question 10 options:

it will be more than the speed of sound waves in air at 20*c and water at 20*c

it will be less than the speed of sound waves in air at 20*c

it will be less than the speed of sound waves in air.

it will be between the speed of air at 20*c and water at 20*c.

"It will be more than the speed of sound waves in air at 20*C and water at 20*C."

Explanation:

Speed of sound in a medium depends upon the density and elasticity of the medium.

If the elasticity of a medium is greater and the density of that medium is lower, sound will travel faster. Although density is also a factor but the major factor is Elasticity.

Hence, sound travel faster in solids than in liquids and even slower in gases due to elasticity difference.

That is why the speed of sound in glass will be more than the speed of sound waves in air at 20*C and water at 20*C.

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

a.   mass number from atomic number