They are equal and opposite (action and reaction)
Answer:
Answer:
The reason why the B-2 "stealth" bomber has no vertical fins (or stabilizers) at all, is because by design, the vertical fins are not required to provide stability; the stability for yaw movement is provided through a computer that controls the B-2 stealth bomber; hence the B-2 stealth bomber does not need a vertical stabilizer in order to fly.
Assuming the cannonball is fired horizontally, its horizontal velocity stays at a constant 76 m/s. At the point it hits the ground, it has a speed of 89 m/s, so if its vertical velocity at that moment is
, we have

(taking the negative square root because we take the downward direction to be negative)
Recall that

where
and
are the initial and final velocities, respectively;
is the acceleration; and
is the change in position of a body. In the cannonball's case, it starts with 0 vertical velocity and is subject to a downward acceleration with magnitude
. So we have

(which is negative because we take the cannonball's starting position at the top of the cliff to be the origin) so the cliff is about 109 m high.
Answer : The maximum current will be, 
Explanation :
The relationship between power, resistance and current is:

where,
P = power = 0.5 watts
I = current = ?
R = resistance = 6 kohms = 6000 ohms
Now put all the given values in the above formula, we get:


Thus, the maximum current will be, 