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:




<span>The relative hardness of a mineral
can be tested by the Moh’s scale or the mineral hardness. The Moh’s scale can
be characterized by the ability of the mineral to resist scratch resistance by
scratching a harder or softer mineral. It has a scale of 1 to 10 where 1 being
the softest and 10 being the hardest. The relative hardness of a mineral can
best be tested by scratching the mineral across a glass plate. The answer is
letter A. </span>
Yes..............................
1950 g This is the answer due to the kilograms of lead being distributed