Answer: λ = 4.23mm
t (time taken till bat hears echo) = 5.9ms
Explanation:
The velocity of sound waves at temperature T is given by
v = √yRT/M
Substituting the values we get
v = √(1.4) (8.314 J/mol K )(283 K)/(28.8x10^-3kg/mol)
=338.2 m/s
The wavelength is given by,
λ = v/n
λ = 338.2 m/s/80.0x10^3 Hz
= 4.23 x10^-3m
= 4.23 mm
The time taken is given by,
t=d/v
We will multiply d by factor 2 because of the reflection of waves.
= (2)(1m)/ 338.2 m/s
= 0.00591s
=5.9 ms
Answer:
Eelas = 5 [J]
Explanation:
Elastic energy is associated with the ability that has a spring or any other material with elastic properties.
We can calculate the elastic energy by means of the following equation:
where:
k = constant spring = 2.5 [N/m]
x = distance stretched = 2 [m]
Answer: I organized the data collected from the lab by using a table for each test. Table A contains the data collected from the table tennis ball and the golf ball, Table B contains the data collected from the inflated football and the deflated football, and Table C contains data collected from the question baseball and the data from Table C helps to find out whether or not the baseball is legitimate or altered.
Explanation:
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