Answer:
Answer:
835.29 Hz
Explanation:
When moving towards the source of sound, frequency will be given by
f*=f(vd+v)/v
Where f is the freqiency of the source, vd is the driving speed, v is the speed of sound in air, f* is the inkown frequency when moving forward.
Substituting 800 Hz for f, 340 m/s for v and 15 m/s for vd then
f*=800(15+340)/340=835.29411764704 Hz
Rounded off, the frequency is approximately 835.29 Hz
ı hope ıts true
Step-by-step explanation:
Answer:
ans is 33
Step-by-step explanation:
2×5÷5-1+32
=10÷5-1+32
=2-1+32
=2+31
=33
$121 and $12 ok isn't available in your ma er bishal bishal bishal
There are no answer choices but if he drove 5 miles in 15 minutes and then traveled about at the same speed in 30 minutes which means he drove 5 more miles which makes it 10 so he is driving at 20mph
-hope it helps
Where’s the question or answer? is there a picture or something
