A solenoid passes through the center of a wire loop, as shown in (Figure 1). The solenoid has 1200 turns, a diameter of 2.0 cm,
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Answer:
The speed of the mouse relative to the factory floor is 5 m/s.
Explanation:
Given that,
A factory conveyor belt rolls at 3 m/s,
A mouse sees a piece of cheese directly across the belt and heads straight for the cheese at 4 m/s,
To find,
The mouse's speed relative to the factory floor.
Solution,
The resultant velocity of the mouse is given by the resultant of two velocities. It is given by :
v = 5 m/s
So, the speed of the mouse relative to the factory floor is 5 m/s.
As we know that work done due a force F is given by formula
here F = applied force due to which work is done
d = displacement of object
now here we will have
W = 588 J
d = 1.4 m
now we can find force by above formula
So applied force by milkman is F = 420 N
The centripetal force : F = 293.3125 N
<h3>Further explanation</h3>Given
mass = 65 kg
v = 9.5 m/s
r = 20 m
Required
the centripetal force
Solution
Centripetal force is a force acting on objects that move in a circle in the direction toward the center of the circle
F = centripetal force, N
m = mass, Kg
v = linear velocity, m / s
r = radius, m
Input the value :
F = 65 x 9.5² / 20
F = 293.3125 N
Answer:
Approximately .
Explanation:
The refractive index of the air is approximately
.
Let denote the refractive index of the glass block, and let
denote the angle of refraction in the glass. Let
denote the angle at which the light enters the glass block from the air.
By Snell's Law:
.
Rearrange the Snell's Law equation to obtain:
.
Hence:
.
In other words, the angle of refraction in the glass would be approximately .