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
m_a_m_a [10]
3 years ago
12

the statement that current is equal to the voltage difference divided by the resistance is known as what

Physics
1 answer:
dangina [55]3 years ago
3 0

Answer:it is known as (Ohm's law)

Explanation:

You might be interested in
Research the main categories of mental disorders and their evaluation and assessments. For example, you can use your favorite In
Reil [10]

Answer:

D

Explanation:

It’s D

3 0
3 years ago
9. Luke is an astronaut that moves his position in the space shuttle by climbing a
BartSMP [9]

Explanation:

Remember that power is defined as how much Work is done per unit of time.

P = \frac{dW}{dt}

Work is defined as the amount of force applied across a certain distance.  

W = F*d

Since in both cases of climbing the ladder (on Earth and the moon), Luke coveres the same amount of <em>distance </em>in the same amount of <em>time</em>, we are only left with one difference between the two cases - gravity.

If you were to carry your backpack on the moon with the same load of text books, it would take less force to pick it up on the moon. Therefore, Luke expends less effort on the environment with less gravity - the moon.

To find the difference factor - you would want to divid the gravitational contants between earth and the moon.

6 0
3 years ago
Read 2 more answers
A 7.5 cm object is 14 cm from a concave lens, which has a focal length of –7 cm. Its image is 5 cm in front of the lens. What is
Rama09 [41]
Given conditions:
height of object = 7.5cmdistance of object from mirror  = 14 cmfocus length = -7 cmimage distance =  ?
Using mirror formula: 
1/(focus length) = 1/(object distance) + 1/(image distance)
or, -1/7 = 1/14 + 1/(image distance)
or, image distance = -4.66cm (the image formed is a virtual image)


Also, magnification of image is:
image height /height of object = - image distance /object distance
or, image height = - image distance / object distance * height of object
or, image height = -(-4.66) / 14 * 7.5 = 2.49 = 3(nearest whole number)
3 0
3 years ago
Read 2 more answers
A block of mass 4 kg slides down an inclined plane inclined at an angle of 30o with the horizontal. Find the acceleration of the
Nataly [62]

Answer:

a) a = 4.9 m/s²

b) a = 1.5 m/s²

Explanation:

no friction

F = ma

gsinθ = ma

a = gsinθ

a = 9.8sin30

a = 4.9 m/s²

friction

gsinθ - μmgcosθ = ma

a = g(sinθ - μcosθ)

a = 9.8(sin30 - 0.4cos30)

a = 1.5051...

8 0
3 years ago
What is the maximum number of lines per centimeter a diffraction grating can have and produce a complete first-order spectrum fo
Pachacha [2.7K]

Answer:

14,300 lines per cm

Explanation:

Answer:

14,300 cm per line

Explanation:

λ400 nm to 400nm

We can find the maximum number of lines per centimeter, which is reciprocal of the least distance separating two adjacent slits, using the following equation.

mλ = dsin (θ)

In this equation,

m is the order of diffraction.

λ is the wavelength of the incident light.

d is the distance separating the centers of the two slits.

θ is the angle at which the mth order would diffract.

To find the least separation that allows the observation of one complete order of spectrum of the visible region, we use the maximum wavelength of the visible region is 700 nm.

d =  mλ / sin (θ)

As we want the distance d to be the smallest then sin (θ) must be the greatest, and the greatest value of the sin (θ) is 1. For that we also use the longest wavelength because using the smallest wavelength, the longest wavelength would not be diffracted.

d =  mλ / sin (θ)

d =  1 x 700nm / 1

  = 700 nm

So, the least separation that would allow for the possibility of observing complete first order of the visible region spectra is 700 nm, and knowing the least separation we can find the maximum number of lines per cm, which is the reciprocal of the number of lines per cm.

n = 1/d

   = 1 / 700 x 10^{-9}

  = 1, 430,000 lines per m  

  =  14,300 lines per cm

<u>The maximum number of lines per cm, that would allow for the observation of the complete first order visible spectra.</u>

5 0
3 years ago
Other questions:
  • Compared to the mass and charge of a proton, the electron has
    14·1 answer
  • a scientist spends most her time observing the motion of an object and how they behave which branch of science is she studying ?
    11·1 answer
  • What linear speed must an earth satellite have to be in a circular orbit at an altitude of 159 km?
    6·1 answer
  • Which one of these is a chemical property of a substance?
    14·1 answer
  • Electrical current is inversely proportional to which of the following quantities?
    7·1 answer
  • Consider an LC circuit in which L = 490 mH and C = 0.116 �F.
    8·1 answer
  • Definiti: a)Marimile Fizice Vectoriale <br> b)Fortele Concurente
    7·1 answer
  • How can you say that joule and Newton are derived units​
    7·1 answer
  • 4. An archer pulls a bowstring back 0.440 m, and the spring constant of the bow is 545 N/m.
    10·1 answer
  • A stone ‘X’ of mass 2 kg is at the height of 20m in two minutes, calculate the power delivered. [g=10 m/s-2]
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!