A very small sphere with positive charge 5.00uC is released from rest at a point 1.20cm from a very long line of uniform linear
1 answer:
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We know that
• The mass of the elevator is 5000 kg.
Let's draw a free-body diagram.
As you can observe, there are just two forces involved, the weight of the elevator and the tension force. Let's use Newton's Second Law.
But, W = mg = 5000kg*9.8m/s^2 = 49,000 N, and m = 5000 kg, a = 0 (because the speed is constant).
The distance covered is 54.0 m
Explanation:
Since the motion of the car is a uniformly accelerated motion, we can use the following suvat equation:
where
u is the initial velocity
t is the time
a is the acceleration
s is the distance covered
For the car in this problem, we have
u = 0 (it starts from rest)
is the acceleration
t = 3.9 s is the time
Substituting, we find s:
Learn more about accelerated motion:
#LearnwithBrainly
.Answer:
491.4 nm
Explanation:
The distance between central and first maxima is,
And the distance between screen abnd grating is,
Now the angle can be find as,
Now the grating distance is,
Now with m=1 condition will become,
So,
Therefore the wavelength of laser light is 491.4 nm.
