4. A plane traveling at 200 m/s drops supplies from 1500 m above the ground. If it reaches
1 answer:
Answer:
3500 m
Explanation:
To find the horizontal displacement of the box of supplies, we just need to analyze its horizontal motion.
The horizontal motion of the box is a uniform motion with constant velocity, since there are no forces acting along this direction. Therefore, the horizontal displacement is given by
where
is the horizontal velocity
t is the time
The horizontal velocity of the supplies is the same as the plane, therefore
So, since the time of flight is
t = 17.5 s
The horizontal displacement is
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To place the poles of a 1. 5 v battery to achieve the same electric field is 1.5×10−2 m
The potential difference is related to the electric field by:
∆V=Ed
where,
∆V is the potential difference
E is the electric field
d is the distance
what is potential difference?
The difference in potential between two points that represents the work involved or the energy released in the transfer of a unit quantity of electricity from one point to the other.
We want to know the distance the detectors have to be placed in order to achieve an electric field of
E=1v/cm=100v/cm
when connected to a battery with potential difference
∆v=1.5v
Solving the equation,we find
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