Answer:
Semiconductors
Explanation:
Semiconductors are materials whose main characteristic is that they can act as conductors or as insulators depending on some conditions such as temperature or the electric field.
There are also chemical elements that have semiconductor capacity, for example silicon.
For this property, semiconductors are widely used for in electronics, among these applications is the manufacture of devices such as transistors, which are electronic divices that allow or disable current flow.
We call it a "green" leaf because green light bounces off of it and enters our eyes. Other colors of light are absorbed by the leaf and stop right there.
If there's no green light to bounce off of the leaf, then no light at all comes from it.
When we look at an object that has no light coming from it, we describe the object as "black". We only know it's there because of its background and surroundings.
(Choice - A)
Answer:
The self-inductance is
Explanation:
From the question we are told that
The number of loops is
The length of the rod is
The radius of the rod is
The self-inductance for the solenoid is mathematically represented as
Now the cross-sectional of the solenoid is mathematically evaluated as
substituting values
and is the permeability of free space with a value
substituting values into above equation
Answer:
16 m/s
Explanation:
First, find the displacement in the east direction.
x = (15 m/s sin 45°) (3600 s) + (18 m/s cos 5°) (3600 s)
x = 102,737 m
Next, find the displacement in the north direction.
y = (15 m/s cos 45°) (3600 s) + (18 m/s sin 5°) (3600 s)
y = 43,831 m
Find the magnitude of the displacement.
d = √(x² + y²)
d = √((102,737 m)² + (43,831 m)²)
d = 111,697 m
Finally, find the resultant velocity.
v = d / t
v = (111,697 m) / (7200 s)
v = 15.5 m/s
Rounded to the nearest whole number, the resultant velocity is 16 m/s.