Answers:
a) 10 m
b) time=1.6 s, frquency=0.625 Hz
c) 6.25 m/s
Explanation:
a) If there is a crest at each dock and another three crests between the two docks, and the wavelength is the distance between to crests; this means we have in :
Clearing :
b) This part can be solved by a Rule of Three:
If 10 waves ---- 16 s
1 wave -----
Then:
This is the period of the wave
On the other hand, the frequency of the wave has an inverse relation with its period :
This is the frequency of the wave
c) The speed of a wave is given by the following equation:
Finally:
Answer:
Lead, Ethyl alcohol and water.
Explanation:
Specific heat capacity of a substance can be define as the quantity of heat that is absorbed by a substance needed to change the temperature of a unit mass of one kilogram of the substance by one kelvin
Answer:
0.02 s
Explanation:
Take the (+x) direction to be up.
The average velocity v during a time interval Δt is the displacement Δx divided by Δt.
v=Δx/Δt
=x_f-x_i/t_f-t_i (1)
We assume that your height is 1.6m
Solving [1]
Δt=Δx/v
= 0.02 s