The answer is “B” hope I helped
High frequency this is due to the wavelength of the frequency
Answer:
angle of twist of the bar is 3.32 × degree
Explanation:
given data
torque t = 571 lb-ft = 774.172 Nm
g = 18,431, 356 lb/ in² = 1.27 × Pa
d1 = 8.1 in = 0.205 m
d2 = 1.8 in = 0.045 m
L = 3.1 ft = 0.944 m
to find out
angle of twist of the bar
solution
first we get here polar moment that is express as
polar moment = ...........1
here do is outer diameter that is 0.205 m and d1 is inner diameter i.e 0.045 m
put here value we get
polar moment =
polar moment = 173.006 ×
now we get here angle that is
angle = ..............2
here T is torque and L is length and J is polar moment and G is share modulus
put these value in equation 2 we get
angle =
angle = 3.32 × degree
Answer:
Kitchen B
Explanation:
This all boils Down to the phenomenon of convection current of àir where warmer air rises up and is replaced by cooler air, the fan is placed higher up in B and because hot air rises higher up it will remove more hot air here
Answer:
B. silicate rocks and metals