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Alenkasestr [34]
3 years ago
13

The resistivity of a certain semi-metal is 10-3 Ohm-cm. Suppose we would like to prepare a silicon wafer with the same resistivi

ty. Assuming we will use n-type dopants only, what dopant density would we choose

Physics
1 answer:
faltersainse [42]3 years ago
3 0

Complete Question

The complete question is shown on the first uploaded image

Answer:

  The dopant density is ND   ≈  8.135*10¹²  cm⁻³

Explanation:

The explanation is shown on the second , third ,fourth and fifth uploaded image

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6 0
3 years ago
Which most likely indicates a chemical change has occurred?
Marta_Voda [28]
A green liquid becoming a red liquid
3 0
3 years ago
A basketball player passes a ball to a teammate at a velocity of 6 m/s. The ball has a mass of 0.51 kg. If the original player h
Vilka [71]

We can solve the problem by using conservation of momentum.

The player + ball system is an isolated system (there is no net force on it), therefore the total momentum must be conserved. Assuming the player is initially at rest with the ball, the total initial momentum is zero:

p_i = 0

The total final momentum is:

p_f = p_p + p_b

where p_p is the momentum of the player and p_b is the momentum of the ball.

The momentum of the ball is: p_b = mv=(0.51 kg)(6 m/s)=3.06 kg m/s

While the momentum of the player is: p_p = Mv_p, where M=59 kg is the player's mass and vp is his velocity. Since momentum must be conserved,

p_f = p_i = 0

so we can write

p_f = Mv_p + p_b =0

and we find

v_p = -\frac{p_b}{M}=-\frac{3.06 kg m/s}{59 kg}=-0.052 m/s

and the negative sign means that it is in the opposite direction of the ball.

8 0
3 years ago
Read 2 more answers
Kendra lifts a box using a force of 80 N. She lifts the box a height of 0.5
Fynjy0 [20]

The work she on the box will be 40 J. Here the displacement due to the force is height.

<h2 /><h3>What is work done?</h3>

Work done is defined as the product of applied force and the distance through which the body is displaced on which the force is applied.

Given data;

Force,F = 80 N

height, h = 0.5 m

Work,W = ? J

Here the displacement is height;

W  = F × d

W = F × h

W = 80 N ×  0.5 m

W = 40 Nm

W=40 J

Hence work she on the box will be 40 J.

To learn more about the work done refer to the link;

brainly.com/question/3902440

#SPJ1

6 0
2 years ago
I was gone when we discussed this and I have no idea what ferromagnetic means. A furry magnet?
abruzzese [7]
Haha... no,

ferromagnetism is a substance with a high/natural susceptibility to magnetization. So those are your earth metals exhibiting unique magnetic behavior like iron, cobalt, and nickel.

Paramagnetism is when certain materials are weakly attracted by an external magnetic field, producing their own induced magnetic fields, aluminum is an example

Diamagnetism is when to magnetic things approach each other and there are repelling due to their electrons orbiting in opposite directions.

3 0
3 years ago
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