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
tangare [24]
3 years ago
13

A(n) ______ can act as an electronic switch that opens or closes the circuits for electrical charges.

Physics
1 answer:
uysha [10]3 years ago
8 0

Answer: diode

Explanation: A diode is an electronic device that has the ability to work in 1 direction of electric current.

At forward bias ( when the positive terminal of the diode is connected to the positive terminal of the source and negative terminal to the negative of the source) the diode allows current to flow thus acting as a close switch.

At reverse bias ( when the positive terminal of the diode is connected to the negative terminal of the source and the negative terminal of the diode to the positive terminal of the source) the diode stops question from flowing thus acting like an open circuit or an open switch

You might be interested in
You can see your image in a shiny, flat surface because the light waves are bouncing off the surface back at you. This is an exa
Alexxx [7]
I think it would be Reflection because the light in the ray reflects off of any flat or shiny object.... Hope this helps ^-^....
4 0
3 years ago
Read 2 more answers
A teacher discusses a scientific theory that has been in place for almost a century. which would present the greatest challenge
Umnica [9.8K]

Answer: The theory might have become Obsolete or Superseded

Explanation:

A theory becomes obsolete or superseded if it becomes inadequate, false or incomplete in how its describes reality. It does not matter if it was once accepted. There are some theories such as Lysenkoism that are currently described as being obsolete because it does not conform to current reality. Another example of a theory that was superseded is the phlogiston theory. It was replaced a different theory of energy.

3 0
3 years ago
Read 2 more answers
Can someone help me with this?
oksian1 [2.3K]

Answer:

Yes

Explanation:

5 0
3 years ago
In a elastic lab what did you change and why?
Vilka [71]

I changed my undershorts.  The elastic on the old ones I put on that day was deteriorated, and it completely failed when I dripped lab coffee on it, causing falldown.

7 0
3 years ago
Read 2 more answers
A car is moving at 19 m/s along a curve on a horizontal plane with radius of curvature 49m.
JulsSmile [24]

Answer:

\mu =0.75

Explanation:

<u>Frictional Force </u>

When the car is moving along the curve, it receives a force that tries to take it from the road. It's called centripetal force and the formula to compute it is:

F_c=m.a_c

The centripetal acceleration a_c is computed as

\displaystyle a_c=\frac{v^2}{r}

Where v is the tangent speed of the car and r is the radius of curvature. Replacing the formula into the first one

F_c=m.\frac{v^2}{r}

For the car to keep on the track, the friction must have the exact same value of the centripetal force and balance the forces. The friction force is computed as

F_r=\mu N

The normal force N is equal to the weight of the car, thus

F_r=\mu .m.g

Equating both forces

\displaystyle \mu .m.g=m.\frac{v^2}{r}

Simplifying

\displaystyle \mu =\frac{v^2}{rg}

Substituting the values

\displaystyle \mu =\frac{19^2}{(49)(9.8)}

\boxed{\mu =0.75}

7 0
4 years ago
Other questions:
  • A ball is launched upward at an angle from the ground. Which way does its velocity point at the top?
    6·1 answer
  • Explain the following statement: A concentrated acid is not necessarily a strong acid.
    10·2 answers
  • 10. Ron’s father finally installed cruise control on their flying car. He was having trouble because he kept of forgetting that
    10·1 answer
  • What is the potential energy of two charges of +4.6 μC and +1.0 μC that are separated by a distance of 10.0 cm?
    12·1 answer
  • Total distance divided by total time
    14·1 answer
  • After a laser beam passes through two thin parallel slits, the first completely dark fringes occur at 19.0 with the original dir
    9·1 answer
  • 35 POINTSS!!! PLSSSS HELLPPP!!!
    13·1 answer
  • A footballer kicks a ball from rest. The foot is in contact with the ball for 0.30s and the final velocity of the ball is 15ms-1
    7·1 answer
  • At 10 seconds, you used 55 Joules. Can you tell me the power?
    15·2 answers
  • R=1m.<br> Vt=+- 8m/s<br> atot (tan<br> √3)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!