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
RoseWind [281]
1 year ago
5

Which of the following is not an SI unit. A. pound B. Newton C. Meter D. kilogram

Physics
1 answer:
Hunter-Best [27]1 year ago
3 0

Answer:

pound

Explanation:

Pound is an SAE  or imperial unit not SI

You might be interested in
Explain Rutherford's experiment?
Ipatiy [6.2K]

Answer:

Rutherford bombarded aluminum foil with beam of light known as alpha particles. The mass of this alpha particle is equivalent to helium atom.

Explanation:

Rutherford bombarded aluminum foil with beam of light known as alpha particles. The mass of this alpha particle is equivalent to helium atom.

When this alpha particles were made to strike the aluminum foil, some passed through the foil, some were reflected and speed others changed.

The ones reflected encountered heavier particle known as the nucleus, preventing them from passing through it. The whole observations indicated that atom is not is uniformly charged sphere as proposed by J.J Thomson.

Rutherford proposed new model known as the Planetary model of atom, which described atom as containing a nucleus which is revolved by electron, just like planets revolve round the sun. And this nucleus contains opposite charge to electron which is proton, to balance the motion.

7 0
3 years ago
A low orbit satellite at 100 km altitude had a camera that resolved a car location to within 0.3 meter. Find the minimum diamete
NeX [460]

Answer:

Minimum diameter of the camera lens is 22.4 cm

The focal length of the camera's lens is 300cm

Explanation:

y = Resolve distance = 0.3 m

h = Height of satellite = 100 km

λ = Wavelength = 550 nm

Angular resolution

tan\theta\approx \theta =\frac{y}{h}\\\Rightarrow \theta=\frac{0.3}{100\times 10^3}=3\times 10^{-6}

From Rayleigh criteria

sin\theta=1.22\frac{\lambda}{D}\\\Rightarrow D=1.22\frac{\lambda}{sin\theta}\\\Rightarrow D=1.22\frac{550\times 10^{-9}}{sin3\times 10^{-6}}=0.2236\ m=22.4\ cm

Minimum diameter of the camera lens is 22.4 cm

Relation between resolvable feature, focal length and angular resolution

d=f\Delta \theta\\\Rightarrow f=\frac{d}{\Delta \theta}\\\Rightarrow f=\frac{9\times 10^{-6}}{3\times 10^{-6}}=3\ m=300\ cm

The focal length of the camera's lens is 300cm

3 0
3 years ago
Please help !! In the diagram, q1 = +0.00200 C, q2 = 0.00180 C, and q3 = +0.00830 C. the net force on q2 is zero. how far is q2
VikaD [51]

Answer:

2.03715

Explanation:

32364=8.99\cdot 10^9\cdot \frac{0.00180\cdot 0.00830}{2.03715^2}

4 0
3 years ago
Is the color spectrum simply a small segment of the electromagnetic spectrum?
ch4aika [34]

Answer:

yup, u r correct

Explanation:

3 0
2 years ago
You drop a rock down a well and hear a splash 3 s later. As Charlie Brown would say, the well is 3 seconds deep. How fast is the
vampirchik [111]
Since it was dropped, it should be the speed of gravity which is 9.8 meters/second
5 0
2 years ago
Other questions:
  • A wire with radius 23 cm has a current of 7 A which is distributed uniformly through its cross sectional area. If you were to us
    9·1 answer
  • Which of the following takes place in the combustion chamber of a gas turbine engine?
    10·2 answers
  • Which words help you to determine the meaning of the word decelerate in paragraph 3
    6·1 answer
  • Carbon dioxide being released from a fire extinguisher a good example of how volume __________.
    15·1 answer
  • In a discussion person A is talking 1.2 dB louder than person B, and person C is talking 3.2 dB louder than person A. What is th
    5·1 answer
  • Block A can slide relative to block B which, in turn, can slide on a perfectly smooth horizontal plane. If the initial velocity
    12·1 answer
  • Air that enters the pleural space during inspiration but is unable to exit during expiration creates a condition called a. open
    6·1 answer
  • A positively charged object will attract an object that has
    13·1 answer
  • Please help me!
    13·1 answer
  • PLEASE HELP ME I DONT UNDERSTAND THIS AND THIS IS TIMED
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!