Answer:
Explanation:
Given
velocity of driver 
=25 m/s w.r.t ground towards north
driver observes that rain is making an angle of 
with vertical
While returning 
=25 m/s w.r.t. ground towards south
suppose 
=velocity of rain drop relative car while car is going towards north
=velocity of rain drop relative car while car is going towards south
z=vector sum of 
Now from graph
therefore magnitude of z is given by
Thus rain drops make an angle of w.r.t to ground
Answer:
The wavelength of the water is 
Explanation:
From the question awe are told that
The distance between the two boats are 46 m
Now we are told that a the time the Jenny's boat is at a crest,Melissa's boat is at its lowest point, and there are 4 additional crests between them which can be mathematically represented as
Number of wavelength = 4 + 0.5(this accounts for the difference in position crest and lowest point)
= 4.5
Now the wavelength of the water is 
Gravitational force is given by the following formula:
F = GMm/r^2
Where;
F = Gravitational force, G = Gravitational constant, M & m = masses of two bodies which are constant in this case, and r = distance between the masses.
It can be seen that F α 1/r^2.
Therefore, the far the two masses are from each other, the smaller the gravitational force and vice versa.
It is indicated that:
AB = 300 km
BC = 400 km
CA = 100 km
Therefore,
gravitational force will largest between C and A due to smaller distance between them.<span />
Okay so an object gets thrown upwards so the half way point of the trip would be the maximum height (before it starts coming back down). if the object stays in the air for a total of 5.6s, then that is the time it takes to go up and come back down. to find the time to maximum height, half the time of the whole trip
5.6s/2 = 2.8s
