Answer:
Velocity
Explanation:
Velocity is a speed with a direction.
My device will use either radio waves or light waves.
Those are the only EM waves I'm equipped to generate.
If I want to get elegant about it, I may use radio waves with
frequencies around 14.1 MHz, because those can be received
many thousands of miles away. I know how to build an effective
antenna to radiate at that frequency, and as a licensed ham-radio
operator, I can do it legally.
Answer:
Explanation:
velocity v = Δx/Δt
Δx is the change in displacement
Δt is the change in time
Δx = vΔt
Given v = 1100ft/s
Δt = t2-t1
Δt = 13-5.6
Δt = 7.4s
Δx = 1100*7.4
Δx = 8,140ft
Hence the distance of the airplane from the person at the instant of the bolt is 8,140ft
Since the air moves at constant speed, it means the speed is not chnaging hence the velocity of the air v is the same as the constant speed.
velocity of the airplane vp = Δx/Δt
Δx = 8,140ft
Δt = t2+t1
Δt = 13+5.6
Δt = 18.6s
Substituting the given values into the formula vp = Δx/Δt
vp = 8,140/18.6
vp = 437.63m/s
Hence the velocity of the airplane is 437.63m/s
Answer:
function is discontinuous
and
after 3 hours upto day 24 hours fix charge $10
so there are discontinuous at 1st hour, 2nd hours and 3rd hours
Explanation:
given data
charge = $3 for 1st hour
charge = $2 for each succeeding hour
maximum charge = $10 daily
to find out
Is this function continuous
solution
their function is 3 +2x
so function is discontinuous here
and
this is very clear for 1st hour or part of hour it mean charge a fix value in given time
anyone who park fix charge for 60 min up to the 3 hours
after that for day 24 hours fix charge $10
so there are discontinuous at 1st hour, 2nd hours and 3rd hours
Answer:
Change in momentum is 
Solution:
The momentum of any body is the product of its mass and the velocity associated with the body and is generally given by:

Now, as per the question:
Mass of the car, M = 1500 kg
The velocity in the east direction, 
The velocity in the north direction, 
Now, the momentum of the car in the east direction:

Now, the momentum of the car in the north direction:

Change in momentum is given by:

Now,



(Since,
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