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
marysya [2.9K]
2 years ago
6

Select the best answer for the question.

Physics
1 answer:
ryzh [129]2 years ago
4 0

Answer:

the correct answer is A

Explanation:

In an electrical circuit the switch can be of two types: unipolar and bipolar.

The bipolar switch refers to a three-contact switch that allows the polarity in the circuit to be reversed.

The unipolar switch has only two contacts so the polarity of the circuit is in one direction and the switch serves to interrupt the passage of electrons in the circuit.

Consequently the correct answer is A

You might be interested in
At what point in a waterfall, do the drops of water contain the most gravitational potential energy?
mr_godi [17]

Answer:

6y5uhthgtgthhthhdhd hdvdhvry r rug 5yr dj d bvb b hdb bgg rn vo ej ccx rhjtui fhc di juju uygur sun P egg grits srry yo idk nrdc fish

7 0
3 years ago
The force required to maintain an object at a constant speed while on frictionless ice is
lara [203]
If an object is on a frictionless surface, to keep it at a constant velocity you can’t apply any force because otherwise, the object will accelerate, and the velocity will change.
3 0
2 years ago
A manufacturer supplies plastic cups that are placed under the legs of the chair
777dan777 [17]

A manufacturer supplies plastic cups that are placed under the legs of the chair. The manufacturer's claim is that there will be no marks of chair due to pushing or pulling on the floor.

<h3>Who is a manufacturer?</h3>

A manufacturer is a person who converts his idea of developing and constructing any item using some set of machines.

A manufacturer supplies plastic cups that are placed under the legs of the chair.

When there is a relative motion between two objects, friction force causes the opposition to this motion. Between chair and floor, there will be high magnitude of force. But if we insert plastic cups in the legs of chair, then the friction between cup and floor will be less. This keeps the floor protected form any scratches.

Learn more about manufacturer.

brainly.com/question/15494518

#SPJ1

6 0
2 years ago
Will a seismic wave traveling through a solid go slower or faster than a seismic wave traveling through a liquid? Why?
Snezhnost [94]
You can't answer this question because you aren't giving the specific type of seismic waves. There is an s-wave a p-wave and an l-wave. Those are the basic waves. An S-wave cannot travel through a liquid at all. So, obviously it travels slower than any other seismic wave. 


<span>It would travel faster because their speed depends on the density and composition of material that they pass through.</span>
3 0
2 years ago
A car with a mass of 1380 Kg is traveling at 23 m/s to the north. A truck with a mass of 1625 Kg is traveling at 26 m/s to the s
trasher [3.6K]

Answer: -3.49 m/s (to the south)

Explanation:

This problem can be solved by the Conservation of Momentum principle which establishes the initial momentum p_{i} must be equal to the final momentum p_{f}, and taking into account this is aninelastic collision:

Before the collision:

p_{i}=mV_{o}+MU_{o} (1)

After the collision:

p_{f}=(m+M)V_{f} (2)

Where:

m=1380 kg is the mass of the car

V_{o}=23 m/s is the velocity of the car, directed to the north

M=1625 kg is the mass of the truck

U_{o}=-26 m/s is the velocity of the truck, directed to the south

V_{f} is the final velocity of both the car and the truck

p_{i}=p_{f} (3)

mV_{o}+MU_{o}=(m+M)V_{f} (4)

Isolating V_{f}:

V_{f}=\frac{mV_{o}+MU_{o}}{m+M} (5)

V_{f}=\frac{(1380 kg)(23 m/s)+(1625 kg)(-26 m/s)}{1380 kg+1625 kg} (6)

Finally:

V_{f}=-3.49 m/s The negative sign indicates the direction of the velocity is to the south

8 0
3 years ago
Other questions:
  • Consider two point charges located on the x axis: one charge, q1 = -11.5nC , is located at x1 = -1.685m ;the second charge, q2 =
    10·1 answer
  • Choose the most acidic substance in the group.
    8·2 answers
  • a. Convert 21.0 cm to inches. Show your dimensional analysis setup. b. Convert 29.7 cm to inches. Show your dimensional analysis
    11·1 answer
  • Physics includes the study of using radio waves to explore stars and identify other planets.
    7·2 answers
  • A square loop of side length a =4.5 cm is placed a distance b = 1.1 cm from a long wire carrying a current that varies with time
    11·2 answers
  • Do you think that individual health behaviors should be taken into consider for individuals whose healthcare costs are covered b
    5·1 answer
  • State Newton’s law of universal gravitation in words. Then do the same with one equation
    5·1 answer
  • When Marie sees the red traffic light, Marie brakes to a halt from a speed of 70 m/s in just 2 seconds. What is her deceleration
    6·1 answer
  • A battery supplies 22V to a circuit with a 20. Ω resistor. What is the current of the circuit?
    6·1 answer
  • give an example of how the law of inertia is demonstrated (a) for moving objects and (b) for objects at rest
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!