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
kenny6666 [7]
4 years ago
8

The true brightness of an object is called its

Physics
2 answers:
g100num [7]4 years ago
8 0
<span>The true brightness of an object is called its luminosity. It is the total amount of energy emitted by bright or meteorological objects over a period of time. It has the SI unit of joules per second or watts. So the answer is letter A. Intensity is the measure of how strong the substance or object is when it projects something. Magnitude is a measure of how great is the size the object produces. Viscosity is the measure of flow of a substance.</span>
schepotkina [342]4 years ago
7 0

The answer is A.luminosity

You might be interested in
A car has a mass of 1.00 × 103 kilograms, and it has an acceleration of 4.5 meters/second 2. What is the net force on the car?
Elodia [21]

Newton #2:     F = M a

               (1 x 10³ kg) (4.5 m/s²)  =  4,500 newtons  
3 0
3 years ago
Define investigation to show its scientific meaning.
Murrr4er [49]

Answer:

the action of investigating something or someone; formal or systematic examination or research.

Explanation:

This definition is provided by Oxford Languages

7 0
4 years ago
Two wires, both with current out of the page, are next to one another. The wire on the left has a current of 1 A and the wire on
Soloha48 [4]

Answer:

C. The left wire attracts the right wire and exerts as much force as the right wire does.

Explanation:

To know what is the answer you first take into account the magnetic field generated by each current, for a distance of d:

B_1=\frac{\mu_oI_1}{2\pi d}=\frac{\mu_o}{2\pi d}(1A)\\\\B_2=\frac{\mu_oI_2}{2\pi d}=\frac{\mu_o}{2\pi d}(2A)=2B_1\\\\

Next, you use the formula for the magnetic force produced by the wires:

\vec{F_B}=I\vec{L}\ X \vec{B}

if the direction of the L vector is in +k direction, the first wire produced a magnetic field with direction +y, that is, +j and the second wire produced magnetic field with direction -y, that is, -j (this because the direction of the magnetic field is obtained by suing the right hand rule). Hence, the direction of the magnetic force on each wire, produced by the other one is:

\vec{F_{B1}}=I_1L\hat{k}\ X\ B_2(-\hat{j})=I_1LB_2\hat{i}=(2A^2)\frac{L\mu_o}{2\pi d}\hat{i}\\\\\vec{F_{B2}}=I_2L\hat{k}\ X\ B_2(\hat{j})=I_2LB_1\hat{i}=-(2A^2)\frac{L\mu_o}{2\pi d}\hat{i}

Hence, due to this result you have that:

C. The left wire attracts the right wire and exerts as much force as the right wire does.

6 0
4 years ago
What kind of substance can you pour from one container into another without
NISA [10]
I believe the answer is liquid.
8 0
3 years ago
"Light traveling in a medium with a refractive index 1.11 is incident on a plate of another medium with index of refraction 1.66
Kamila [148]

Answer:

56°

Explanation:

Brewsters angle can be simply derived from

n1sin theta1= n2sintheta2= n2costheta1

because the reflected light will be 100% polarized if it is reflected at an angle 90o to the refracted light. Hence, Brewsters angle is

Tan theta= n2/n1

1.66/1.11= 1.495

Theta = 56°

Explanation:

7 0
4 years ago
Other questions:
  • Two concentric conducting spherical shells produce a radially outward electric field of magnitude49,000 N/C at a point 4.10 m fr
    9·1 answer
  • suppose you increase your walking speed from 7 m/s to 15 m/s in a period of 2 s. what is your acceleration
    5·1 answer
  • What is the mass of a book that weighs 234 N?
    7·1 answer
  • Helpppp meeee pleaseeee
    13·1 answer
  • How’d the turtle cross the road
    15·2 answers
  • Three blocks are sliding together to the right along a surface of negligible friction when a force with magnitude Fext is exerte
    5·1 answer
  • Which of the following are possible units for a spring constant?
    13·2 answers
  • Can anyone please tell me the properties of image formed in a spherical mirror?
    7·2 answers
  • The accepted value for the specific heat of water is 4186 J/kg°C. Based on your calculations, what sources of error could accoun
    13·1 answer
  • Can anybody write a short poem about friction
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!