Complete Question
The complete question is shown on the first uploaded image
Answer:
The value is 
Explanation:
Generally for an n-type semiconductor the current density is mathematically represented as

Here
is mathematically represented as

=> 
=> 
So

From the diagram 
=> 
So


So from 
substitute
for q and
and from the diagram
So


Answer:
245 m
Explanation:
v = at + v₀
50.0 m/s = a (9.8 s) + 0 m/s
a = 5.10 m/s²
x = x₀ + v₀ t + ½ at²
x = 0 m + (0 m/s) (9.8 s) + ½ (5.10 m/s²) (9.8 s)²
x = 245 m
<span>5,778 K is how hot the sun is. ( ty will be receiving my brainliest now :) </span>
Gravity acts to accelerate the ball downward, and air resistance acts in a way to slow the ball along it's instantaneous velocity (no matter which way it's moving air applies a force in the opposite direction)
Answer:
6840 N
Explanation:
The force acting on the car can be found by using Newton's second law:
F = ma
where
F is the net force on the car
m is the mass of the car
a is its acceleration
For the car in this problem,
m = 1800 kg

Substituting,
