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
Andreas93 [3]
4 years ago
6

Three objects are brought close to each other, two at a time.When objects A and B are brought together, they repel. When objects

B and C are brought together, they also repel. Which of thefollowing are true? (Select all that apply.)a. additional experiments must be performed todetermine the signs of hte cahrges.b. objects A and C possess charges of the samesign.c. one object is neutral.d. objects A and C possess charges of theoppostite sign.e. all three objects possess charges of thesame sign.
Physics
1 answer:
ahrayia [7]4 years ago
5 0

Answer:

a. additional experiments must be performed to determine the signs of the charges

e. all three objects possess charges of the same sign.

Explanation:

When any two objects are brought close to each other and they repel each other then it is possible that they are having the same type of charge.

Here A and B when brought into proximity repel each other and also when B & C are brought close they repel each other that means all the three objects carry similar charge.

We do not know the nature of the charge and we need to perform further experiments with a known charge or a known magnetic field to determine the nature of charges on them.

You might be interested in
A star emits electromagnetic radiation which closely resembles the spectrum of a blackbody. The three star system named Albireo
aksik [14]

Answer:

A = 13000K has a maximum at lam = 1,9984 10⁻⁷ m = 199.84 nm , this star is visually separated from the other two by its constant emission spectrum and is not affected by the other two.

we have a fluctuation of the intensity emitted by the stars.   Consequently by this fluctuation the amateur astronomer can conclude that this system is made up of two stars.

Explanation:

The radiation of a black body is characterized by its temperature, with Wien's law of displacement we can find the maximum wavelength emitted by each star.

                  λ T = 2,898 10⁻³

therefore the emission the star of A = 13000K has a maximum at lam = 1,9984 10⁻⁷ m = 199.84 nm

The emission of the premiere is in the ultraviolet light range, as this star is visually separated from the other two by its constant emission spectrum and is not affected by the other two.

The burst with A = 4300K ​​has a bad emission maximum = 6.7395 10⁻⁷ m = 673.95 nm, which corresponds to an emission in the visible in the orange range, giving a blackbody spectrum of this range, but since the emission is formed by two stars, we see that when the two are placed one in front of the other the intensity of the emission must increase significantly and when they are placed next to each other the intensity reaches its minimum, consequently we have a fluctuation of the intensity emitted by the stars.

Consequently by this fluctuation the amateur astronomer can conclude that this system is made up of two stars.

7 0
3 years ago
Problem 4: a long wire carries current towards east. a positive charge moves westward and just north from the wire. what is the
Alex787 [66]
The direction of the force experienced by the positive charge is upward.

We can use the right-hand rule to understand the direction of the Lorentz force acting on the charge: let's put the thumb in the same direction of the current in the wire (eastward), while the other fingers "wrap themselves" around the wire. These other fingers give the direction of the Lorentz force in every point of the space around the wire. Since the charge is located north of the wire, in that point the fingers are directed upward, so the positive charge experiences a force directed upward.
(if it was a negative charge, we should have taken the opposite direction)
4 0
3 years ago
A helicopter lifts 35m vertically into the air and then comes back down to the ground.
Phoenix [80]

Explanation:

Distance = Total path length = 35m + 35m = 70m

Displacement = Final - Initial position = 0m

5 0
3 years ago
What is the purpose of the article physicists test telepathy in a cheat proof setting?
ryzh [129]
I'm guessing that the purpose of the article is to inform the
general public of the work that these Physicists did when they
attempted to detect the existence or non-existence of telepathy
in a controlled, scientifically acceptable setting.

The REASON the article was ever presented in a non-professional
publication was most likely in deference to the general public's interest
in telepathy, UFOs, aliens, flat Earth, Astrology, and all other forms of
weird garbage.  In other words, its publication was motivated more by
the desire to sell magazines than by any inclination to impart any real,
useful information to the general public.

7 0
3 years ago
An object is moving with constant non-zero velocity. Which of thw following statements about it must be true
hram777 [196]

Answer:

The net force on the object is zero.

Explanation:

An object is moving with constant non-zero velocity. If velocity is constant, it means that the change in velocity is equal to 0. As a result, acceleration of the object is equal to 0. Net force is the product of mass and acceleration. Hence, the correct option is (d) "The net force on the object is zero".

5 0
3 years ago
Other questions:
  • When a warm air mass moves into an area where a cold air mass is located, it is called a(n) _____?
    8·1 answer
  • The force of gravity acting on a child mass on earth is 190 N what is the child Mass
    10·1 answer
  • Water is boiling in a clear pot, as shown in the picture. Which takes place as water cycles from the bottom of the pot toward th
    15·2 answers
  • The heat loss from a boiler is to be held at a maximum of 900Btu/h ft2 of wall area. What thickness of asbestos (k= 0.10 Btu/h f
    6·1 answer
  • An Object is located 16 cm in front of a converging lens with focal length 12 cm. To the right of the converging lens, separated
    8·1 answer
  • Why would you not be able to hear a sound in space?
    5·1 answer
  • When 23Na is bombarded with protons, the products are 20Ne and A. a neutron B. an alpha particle C. a deuteron D. a gamma ray pa
    10·1 answer
  • Please help me if you can.
    6·1 answer
  • T or F: In situations of inhalation poisoning, you should call for help before you attempt a rescue.
    6·1 answer
  • What is the volume of 150g of a substance that has a density of 150g of a substance that has a density of 11.3g/cm3
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!