<span>Which statement best describes wavelength?
C. Wavelength is the length of one complete wave cycle.
As demonstrated by the Doppler effect, why does sound increase in pitch as a sound source approaches you?
B. The waves are closer together because the object is moving toward you.
Which statement best describes frequency and pitch?
A. Pitch is how frequency is perceived.
Hope these answer the question. Have a nice day.</span>
Explanation:
u= 0 ( because car start rest)
v=400
t=3.5
v-u/t
400-0/3.5
400/3.5
114m/s
f= 12000
f=ma
12000=m*114
m=12000/114
105 kg approx
Arrows point away from north and toward south.
and
Field lines loop around the magnet starting at the north pole and ending at the south pole.
Answer:
Part (a) - 1.42 rev/s
Part (b) - 5.78s
Part (c) - 6.90s
Part (d) - 33.81 rev
Explanation:
The solution to this problem requires the knowledge of constant angular acceleration motion. The equations used here are similar to those used in constant linear acceleration motion. The detailed solutio is presented in the attachment below.