1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leona [35]
2 years ago
13

Which two statements correctly describe the role of a semiconductor in a

Physics
1 answer:
KIM [24]2 years ago
7 0

Answer:

It's A and C

You might be interested in
If you went to a planet that had the twice the radius as Earth, but the same mass, a 1 kg pineapple would have a weight of
kicyunya [14]

Use the law of universal gravitation, which says the force of gravitation between two bodies of mass <em>m</em>₁ and <em>m</em>₂ a distance <em>r</em> apart is

<em>F</em> = <em>G m</em>₁ <em>m</em>₂ / <em>r</em>²

where <em>G</em> = 6.67 x 10⁻¹¹ N m²/kg².

The Earth has a radius of about 6371 km = 6.371 x 10⁶ m (large enough for a pineapple on the surface of the earth to have an effective distance from the center of the Earth to be equal to this radius), and a mass of about 5.97 x 10²⁴ kg, so the force of gravitation between the pineapple and the Earth is

<em>F</em> = (6.67 x 10⁻¹¹ N m²/kg²) (1 kg) (5.97 x 10²⁴ kg) / (6.371 x 10⁶ m)²

<em>F</em> ≈ 9.81 N

Notice that this is roughly equal to the weight of the pineapple on Earth, (1 kg)<em>g</em>, where <em>g</em> = 9.80 m/s² is the magnitude of the acceleration due to gravity, so that [force of gravity] = [weight] on any given planet.

This means that on this new planet with twice the radius of Earth, the pineapple would have a weight of

<em>F</em> = <em>G m</em>₁ <em>m</em>₂ / (2<em>r</em>)² = 1/4 <em>G m</em>₁ <em>m</em>₂ / <em>r</em>²

i.e. 1/4 of the weight on Earth, which would be about 2.45 N.

7 0
3 years ago
Omparing Technological Design and Scientific Investigation
djyliett [7]

Answer:

杰恩斯克克斯克奇沃伊斯克克斯克什德布德克什恩克恩德恩克恩茨克杰兹姆克斯恩斯姆斯姆德恩德姆德武伊乔奥斯克斯杰德布德赫德夫赫富伊什杰吉迪赫德赫夫赫德

6 0
2 years ago
What is the frequency of this wave<br> 1<br> 2<br> 3<br> 4
viva [34]
The frequency of this wave is 3
3 0
3 years ago
An object that is completely or partially submerged in fluid experience an upward force called?​
romanna [79]
The buoyant force or upward buoyancy force
8 0
2 years ago
What steps are involved in creating hydroelectric power?
Mama L [17]

Answer:

Water falls from a reservoir through a channel to a turbine. The water turns the turbines, which allows the generator to make electricity.

It is falling instead of flowing, because elavation is an important part of the hydroeletric power plant, since gravity is a thing, and there was elevation, than it would be falling and not flowing.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement correctly describes the relationship between frequency and wavelength?
    14·2 answers
  • Exercising with a friend or partner will enhance your safety. true or false
    15·2 answers
  • Which of the following actions would decrease the energy stored in a parallel plate capacitor when a constant potential differen
    13·1 answer
  • For a given Prandtl-Meyer expansion, the upstream Mach number is 3 and the pressure ratio across the wave is P2/P1 = 0.4. Calcul
    6·1 answer
  • Formulate and write a computer program to determine the effects of pressure ratio, minimum/maximum temperature ratio, compressor
    12·1 answer
  • uniform mementum mas is 90g is pivoted at 40cm mark if the metra rula ia in equilibrium with an mark unknown mass m place at the
    11·1 answer
  • Liquid pressure does not depend on
    6·1 answer
  • Pls help me all dew in 5 minutes!
    10·2 answers
  • Which statement is true about the thermal energy of an object? Choose the correct answer. 1). Thermal energy is the internal pot
    11·1 answer
  • Thank you for helppp
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!