I think it is D but im not sure
The traveler's total displacement is 53.2 km.
The shortest distance between a particle's starting position and destination is referred to as its displacement vector. Displacement has a distinct physical magnitude than distance. Let's use the motion of a particle making a complete circle as an example. The displacement in this motion is zero, yet the distance traveled is equal to the circle's circumference. The individual displacement vectors are as follows: d1
=22^ikm→d2
= (29.7cos45i29.7sin45) kmd3=104jkm
The traveler's complete disadvantage is,
→d=→d1+→d2+→d3→d
=22^ikM+29.7
cos45^−29.7sin45o) km−10.4^j km→
d=(43^i−31.4^j) km
The magnitude of the total displacement is,
d=√432+31.4/2Km d≈53.2km
The direction is,
θ=tan−1(−31.4/43)
θ=−36.1or 36.1 south of east.
Learn more about displacement here-
brainly.com/question/11934397
#SPJ9
The question is not well presented.
There is ______ shift in sound frequency for observers towards whom the source is approaching.
Answer:
The gap should be filled with an apparent upward
Explanation:
The Doppler effect (also referred to as the Doppler shift) is the difference in frequency of a wave when related to an observer who has a relative movement to the wave source
The Doppler effect can be observed to occur with all types of waves - most notably water waves, sound waves, and light waves
The Doppler effect describes sound as an effect which is produced from a moving source of wave.
According to the Doppler effect;
When the source of waves in which there is an apparent upward shift in frequency for observers towards whom the source is approaching.
Q= calories
m = mass
c = specific heat
∆t = temperature difference
Also, Qin = Qout
(as in the amount of energy lost by the iron equals the energy gained by water. the water) so the calories lost is as stated in pict.
