If you have a string that is fixed on both ends the amplitude of the oscillation must be zero at the beginning and the end of the string. Take a look at the pictures I have attached. It is clear that our fundamental harmonic will have the wavelength of:
All the higher harmonics are just multiples of the fundamental:
Three longest wavelengths are:
Answer:
3.83 s
Explanation:
Initially for 50 m A falls with acceleration equal to g ie 9.8 m /s².In this journey his initial velocity u = 0 , a = 9.8 , v = ? , t = ?
h = ut + 1/ 2 g t²
50 = .5 x 9.8x t²
t = 3.19 s
v = u +gt
= o + 9.8 x 3.19
= 31.26 m /s
For motion under deceleration
initial speed u = 31.26 m/s
Final speed v = 14 m/s
deceleration a = - 27 m/s²
v = u - at
14 = 31.26 - 27 t
t = 0.64 s
So total time in the air
= 3.19 + .64 = 3.83 s
Answer:
Hot water will take longer to freeze into solid ice cubes than cold water, because the hot water molecules have to slow down more than cold water molecules to enter the solid state and become ice. ... All “cold” water must be at the same i
Explanation:
Hot water will take longer to freeze into solid ice cubes than cold water, because the hot water molecules have to slow down more than cold water molecules to enter the solid state and become ice. ... All “cold” water must be at the same i
