There are longitudinal and transverse. Both types of mechanical waves require a medium, transport energy, and have defined wavelengths, frequencies, and speeds.
Differences are that transverse waves oscillate along a direction perpendicular to the direction of travel (like shaking a rope up and down). Longitudinal waves like oscillations along a spring and sound waves, oscillate back and forth along the direction of travel.
Answer:
A. velocity and wavelength
Explanation:
- When a wave travels from one medium to another it undergoes a change in direction and this is referred to as refraction.
- Refraction is the bending of a wave or a change in direction of a wave as it travels from one medium to another. Refraction is accompanied by change in velocity and wavelength of a wave.
- Velocity of a wave is proportional to the wavelength of the wave therefore, if the velocity of a wave changes the the wavelength will also change proportionally to the velocity.
Answer:
part A ⇒ u = 1.28 m
part B ⇒v = 0.43 m
Explanation:
for u is the distance to the object from the mirror and v is the distance from the mirror to the image.
Part A:
the mirror equation is given by:
1/f = 1/v + 1/u
but we told that, v = 1/3u:
1/f = 3/v + 1/u = 4/u
1/f = 4/u
f = u/4
u = 4f
= 4×(32×10^-2)
= 1.28 m
Therefore the distance from the mirror to the object is 1.28 m.
part B:
v = 1/3×u = 1/3×(1.28) = 0.43 m
Answer:
0.00851 volts
Explanation:
radius r1= 1.30 cm with ns= 260 turns/cm
radius r2= 4.60 cm and Nc= 23 turns
constant rate from zero to Is= 1.90 A
time interval of 88.0 ms
Area of the solenoid
![A_1=\pi*r_1^2](https://tex.z-dn.net/?f=A_1%3D%5Cpi%2Ar_1%5E2)
![=\pi*0.013^2](https://tex.z-dn.net/?f=%3D%5Cpi%2A0.013%5E2)
![A_1=5.31*10^-^4 m^2](https://tex.z-dn.net/?f=A_1%3D5.31%2A10%5E-%5E4%20m%5E2)
Mututal Inductance
M=uo*n*N*A1
![M=(4\pi*10^-^7)*23*(260*10^2)*(5.31*10^-^4)](https://tex.z-dn.net/?f=M%3D%284%5Cpi%2A10%5E-%5E7%29%2A23%2A%28260%2A10%5E2%29%2A%285.31%2A10%5E-%5E4%29)
![M=3.99*10^-^4 H](https://tex.z-dn.net/?f=M%3D3.99%2A10%5E-%5E4%20H)
a)
EMF induced in the outer coil
E=M(dIs/dt)
![E=(3.99*10^-^4)*(1.9/88*10^-^3)](https://tex.z-dn.net/?f=E%3D%283.99%2A10%5E-%5E4%29%2A%281.9%2F88%2A10%5E-%5E3%29)
![E=0.00861 Volts](https://tex.z-dn.net/?f=E%3D0.00861%20Volts)