Answer:
The magnitude of the velocity of boat w.r.t ground is 6.2015 m/s
Solution:
As per the question;
Width of the river, w = 216 m
Uniform speed of boat due east, 
Angle in north west direction, 
Velocity of the boat relative to water, 
Now,
Velocity of the boat relative to the water is given by:


Also, velocity of water w.r.t ground is 
Now,
Magnitude of the velocity of boat w.r.t ground is given by:




The equation v=rω says that the tangential speed v is proportional to the distance r from the center of rotation. ... This makes sense because a point farther out from the center has to cover a longer arc length in the same amount of time as a point closer to the center.
Answer:
0.066m
Explanation:
Step one:
given
frequency =512 Hz
The speed of sound is 340.0 m/s.
Required
The wavelength
Step two:
the formula for wavelength is


substitute the given data

50 N/cm^2. It is 75+525/4x3. Pls mark me brainliest
A colloid I think. Don’t hold it against me if I’m wrong my dude.