energy. It will not disrupt the picture developing process by overexposing too much light on the film.
Explanation:
the weight of the people inside the bus
Answer:
a) ![v=4.0m/s](https://tex.z-dn.net/?f=v%3D4.0m%2Fs)
b) ![B=2.958T](https://tex.z-dn.net/?f=B%3D2.958T)
Explanation:
From the question we are told that:
Wire Length ![l=10cm=>0.10m](https://tex.z-dn.net/?f=l%3D10cm%3D%3E0.10m)
Resistance ![R=0.35](https://tex.z-dn.net/?f=R%3D0.35)
Force ![F=1.0N](https://tex.z-dn.net/?f=F%3D1.0N)
Power ![P=4.0W](https://tex.z-dn.net/?f=P%3D4.0W)
a)
Generally the equation for Power is mathematically given by
![P=Fv](https://tex.z-dn.net/?f=P%3DFv)
Therefore
![v=\frac{P}{F}](https://tex.z-dn.net/?f=v%3D%5Cfrac%7BP%7D%7BF%7D)
![v=\frac{4.0}{1.0}](https://tex.z-dn.net/?f=v%3D%5Cfrac%7B4.0%7D%7B1.0%7D)
![v=4.0m/s](https://tex.z-dn.net/?f=v%3D4.0m%2Fs)
b)
Generally the equation for Magnetic Field is mathematically given by
![B=\frac{\sqrt{PR}}{vl}](https://tex.z-dn.net/?f=B%3D%5Cfrac%7B%5Csqrt%7BPR%7D%7D%7Bvl%7D)
![B=\frac{\sqrt{4*0.35}}{4*0.10}](https://tex.z-dn.net/?f=B%3D%5Cfrac%7B%5Csqrt%7B4%2A0.35%7D%7D%7B4%2A0.10%7D)
![B=2.958T](https://tex.z-dn.net/?f=B%3D2.958T)
Vertical forces:
There is a force of 579N acting upward, and a force of 579N
acting downward.
The vertical forces are balanced ... they add up to zero ...
so there's no vertical acceleration.
Not up, not down.
Horizontal forces:
There is a force of 487N acting to the left, and a force of 632N
acting to the right.
The net horizontal force is
(487-left + 632-right) - (632-right - 487-right) = 145N to the right.
The net force on the car is all to the right.
The car accelerates to the right.
Acceleration = (change in speed) / (time for the change)
change in speed = (speed at the end) - (speed at the beginning)
change in speed = (37 km/hr) - (89 km/hr) = -52 km/hr
Acceleration = (-52 km/hr) / (6 sec)
Acceleration = (-26/3) km/(hr·sec)
Units: (1/hr·sec) · (hr/3600 sec) = 1 / 3600 sec²
(-26/3) km/(hr·sec) = (-26/3) km/(3600 sec²)
= -26,000/(3 · 3600) m/s²
<em>Acceleration = -2.41 m/s²</em>