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
jekas [21]
3 years ago
13

Si: A + B = C – D es una ecuación física donde A, B, C y D son magnitudes físicas entonces [ A ] = [ B ] = [ C ] = [ D ]

Physics
1 answer:
PilotLPTM [1.2K]3 years ago
8 0

Answer:

[A] = [B] = [C] = [D] por el Principio de Homogeneidad Dimensional y el uso de operaciones de adición y sustracción.

Explanation:

Por el Principio de Homogeneidad Dimensional, A, B, C y D deben tener las mismas magnitudes físicas para la realización de operaciones de adición y sustracción. Es decir:

[A] + [B] = [C] - [D], donde [A] = [B] = [C] = [D]

You might be interested in
Medical cyclotrons need efficient sources of protons to inject into their center. In one kind of ion source, hydrogen atoms (i.e
antoniya [11.8K]

Answer:

r=5.278\times 10^{-4}\ m

Explanation:

Given that:

  • magnetic field intensity, B=0.07\ T
  • kinetic energy of electron, KE=1.2\ eV= 1.2\times 1.6\times 10^{-19}\ J= 1.92\times 10^{-19}\ J
  • we have mass of electron, m=9.1\times 10^{-31}\ kg

<em>Now, form the mathematical expression of Kinetic Energy:</em>

KE= \frac{1}{2} m.v^2

1.92\times 10^{-19}=0.5\times 9.1\times 10^{-31}\times v^2

v^2=4.2198\times 10^{11}

v=6.496\times 10^6\ m.s^{-1}

<u>from the relation of magnetic and centripetal forces we have the radius as:</u>

r=\frac{m.v}{q.B}

r=\frac{9.1\times 10^{-31}\times 6.496\times 10^6 }{1.6\times 10^{-19}\times 0.07}

r=5.278\times 10^{-4}\ m

6 0
3 years ago
1.) A ball is thrown horizontally from the top of a building. What is the vertical velocity of the ball after 1 second?
BARSIC [14]
  1. 9.8
  2. zero
  3. 45
  4. not sure - 70
  5. Uniform accelerated motion
6 0
3 years ago
Read 2 more answers
A boat of mass 225 kg drifts along a river at a speed of 21 m/s to the west. what impulse is required to decrease the speed of t
zzz [600]
The impulse required to decrease the speed of the boat is equal to the variation of momentum of the boat:
J=\Delta p=m \Delta v
where
m=225 kg is the mass of the boat
\Delta v=v_f-v_i=15 m/s-21 m/s=-6 m/s is the variation of velocity of the boat
By substituting the numbers into the first equation, we find the impulse:
J=m\Delta v=(225 kg)(-6 m/s)=-1350 N s
and the negative sign means the direction of the impulse is against the direction of motion of the boat.
8 0
4 years ago
Read 2 more answers
The National Ambient Air Quality Standards (NAAQS) are maximum allowable levels for _____ harmful pollutants. sixteen six sixty
Harman [31]
6

I hope this helps (:

4 0
3 years ago
Read 2 more answers
Last one I swear, 50 points again! plz help this is schoolwork
Anit [1.1K]
It is a stretch of the atmosphere ranging from the upper mesosphere to the lower parts of the thermosphere. It’s useful to us in radio communication.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Is it true that newtons laws of universal gravitation states that every object in the universe attracts every other object
    15·1 answer
  • How are surface temperature and length of year on a planet related to the planet’s distance from the Sun?
    12·1 answer
  • How many nano-meters thick is a nickel
    5·1 answer
  • A skateboarder with mass ms = 54 kg is standing at the top of a ramp which is hy = 3.3 m above the ground. The skateboarder then
    14·1 answer
  • if the input force on a wheel and axle is 2 N and the output force is 20N what is its mechanical advantage
    8·1 answer
  • What is the velocity of a car that travels 556km northwest in 3.2 hours
    9·1 answer
  • Two Earth satellites, A and B, each of mass m = 940 kg , are launched into circular orbits around the Earth's center. Satellite
    9·1 answer
  • What orbital motion is the result of _______ and each satellite's forward inertia
    15·1 answer
  • A solid block of copper, which is a good conductor, has a cavity in its interior. Within the cavity, insulated from the conducto
    8·1 answer
  • You drop a penny from the top of the Salesforce building in San Francisco. If the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!