A hot brass plate is having its upper surface cooled by impinging jet of air at temperature of 15°c and convection heat transfer
1 answer:
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The motion of the buoy consists of two independent motions on the horizontal and vertical axis.
On the horizontal axis, the motion of the buoy is a uniform motion with constant speed
. On the vertical axis, the motion of the buoy is a uniformly accelerated motion with constant acceleration 
. The vertical position of the buoy at time t is given by
where h is the initial heigth of the buoy when it is released from the plane. At the time t=21 s, the buoy reaches the ground, so y(21 s)=0. If we substitute these two numbers inside the equation, we can find the value of h, the vertical displacement from the plane to the ocean:
On the horizontal axis, the motion of the buoy is a uniform motion with constant speed
where h is the initial heigth of the buoy when it is released from the plane. At the time t=21 s, the buoy reaches the ground, so y(21 s)=0. If we substitute these two numbers inside the equation, we can find the value of h, the vertical displacement from the plane to the ocean:
Answer:
Electron will travel to a distance of 0.189 m before its velocity is 0
Explanation:
We have initial speed of the electron
Electric field
Charge on electron will be
Mass of electron
We know that Columbus force is equal to F = qE and according to newtons law force is equal to F = ma , here m is mass and a is acceleration
These two forces will be equal
So ma = qE
According to third equation of motion
So
s = 0.189 m
So electron will travel to a distance of 0.189 m before its velocity is 0