Answer:
A) D = 146.34m
B) α = 33.07° south of west
Explanation:
In the diagram you can see the position after each displacement.
Point A will be at (-180,0) in rectangular coordinates
Point B will be at (-180,0) + (230*cos(45), -230*sin(45))=(-17.365, -162.635)
Point C will be at Pb + (280*sin(30), 280*cos(30)) = (122.635, 79.852)
The fourth displacement will therefore be: (-122.635, -79.852).
The module of this vector is 146.34m
And the angle is 33.07° south of west
The answer is 3 elliptical, spiral, and irregular.
Answer:
f = 687.85 Hz
Explanation:
Given that,
The wavelength of sound wave,
We need to find the frequency of the sound wave. The relation between wavelength and frequency is given by :
v is speed of sound at T = 35°C = 308.15 K
So,
So, the frequency of the sound is 687.85 Hz.
The radar device determines the vehicle's instantaneous speed.
I would argue that the purpose of the device is not to determine
whether individuals are driving safely. They only determine whether
individuals are driving within legal speed limits. There's much more
to 'safe' driving than that, but the radar gun can't detect it.
Answer:
Joule is the answer
Please give me brainleast