PHYS 165: Module 6 problem set
A forty six.3-kg mass is attached to a spring and set in movement. If the mass bounces from
side to side precisely 7 times in eleven seconds, what's the spring consistent of the spring? -
ANS-(11 s)/(7) = 1.57 s
T=2pi(square root) (m/ok)
4pi^2(( forty six.Three kg)/ (1.Fifty seven)^2) = 742 N/m
A boy dips his finger into water at a regular fee. If he dips his finger inside the water 25
instances in exactly 10 s, what is the duration and frequency of the waves inside the water? -
ANS-t = 10 seconds
T = 10 s/ 25 revolutions = zero.4 s
T= 0.Four s
F= 1/zero.4s = 2.Five HZ
All waves also can be placed into one in every of three classes which are prominent with the aid
of the way they disturb the medium. What are they? - ANS-Transverse, longitudinal and floor
An unknown item is submerged in water. A ray of mild travels from the water into the unknown
substance, and the angles of occurrence and refraction are measured. If the angle of incidence
is forty five.Zero∘∘, and the perspective of refraction is 36.Three∘∘, what is the unknown item
fabricated from? - ANS-n1sin1=n2sin2
(1.33)sin (45.0)=(n2)sin(36.3)
zero.94 = 0.Fifty nine
zero.94/zero.59 = 1.59, plastic
Define Huygens' Principle - ANS-1) Each factor on a wavefront is the source of a spherical
wavelet that spreads out from that factor at the rate of the wave.
2) At a later time, the shape of the wavefront is the curve that is tangent to all the wavelets.
Give an example of an object in simple harmonic movement. - ANS-Pendulum
Give an example of an item that is transferring in periodic motion but no longer in SHM -
ANS-Doing pushups at a regular fee, going to lunch on the identical time every day
Give an example of resonance. - ANS-Any musical device uses resonance, the Tacoma
Narrows Bridge collapse, Rogue Waves
If an ice cube is three.Forty cm lengthy, how long does light take to tour via the ice cube? -
ANS-n = c/v , v= c/n = (3.00 x 10^8 m/s / 1.31 )
= 2.29 x 10^eight m/s
v = d/t, t= d/v = (0.0340 m)/ (2.29 x 10^8 m/s)
= 1.48 x 10^-10 s
A forty six.3-kg mass is attached to a spring and set in movement. If the mass bounces from
side to side precisely 7 times in eleven seconds, what's the spring consistent of the spring? -
ANS-(11 s)/(7) = 1.57 s
T=2pi(square root) (m/ok)
4pi^2(( forty six.Three kg)/ (1.Fifty seven)^2) = 742 N/m
A boy dips his finger into water at a regular fee. If he dips his finger inside the water 25
instances in exactly 10 s, what is the duration and frequency of the waves inside the water? -
ANS-t = 10 seconds
T = 10 s/ 25 revolutions = zero.4 s
T= 0.Four s
F= 1/zero.4s = 2.Five HZ
All waves also can be placed into one in every of three classes which are prominent with the aid
of the way they disturb the medium. What are they? - ANS-Transverse, longitudinal and floor
An unknown item is submerged in water. A ray of mild travels from the water into the unknown
substance, and the angles of occurrence and refraction are measured. If the angle of incidence
is forty five.Zero∘∘, and the perspective of refraction is 36.Three∘∘, what is the unknown item
fabricated from? - ANS-n1sin1=n2sin2
(1.33)sin (45.0)=(n2)sin(36.3)
zero.94 = 0.Fifty nine
zero.94/zero.59 = 1.59, plastic
Define Huygens' Principle - ANS-1) Each factor on a wavefront is the source of a spherical
wavelet that spreads out from that factor at the rate of the wave.
2) At a later time, the shape of the wavefront is the curve that is tangent to all the wavelets.
Give an example of an object in simple harmonic movement. - ANS-Pendulum
Give an example of an item that is transferring in periodic motion but no longer in SHM -
ANS-Doing pushups at a regular fee, going to lunch on the identical time every day
Give an example of resonance. - ANS-Any musical device uses resonance, the Tacoma
Narrows Bridge collapse, Rogue Waves
If an ice cube is three.Forty cm lengthy, how long does light take to tour via the ice cube? -
ANS-n = c/v , v= c/n = (3.00 x 10^8 m/s / 1.31 )
= 2.29 x 10^eight m/s
v = d/t, t= d/v = (0.0340 m)/ (2.29 x 10^8 m/s)
= 1.48 x 10^-10 s
