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
dsp73
3 years ago
9

What can be concluded about the atom from knowing that oxygen-18 has an atomic number of 8? A) An oxygen atom that includes 8 ba

ryons, 9 prions, and 10 neutrons. B) This oxygen isotope contains 8 electrons, 8 protons, and 10 neutrons. C) It's an oxygen allotrope incorporates 7 electrons, 7 protons, and 7 quarks. D) The oxygen configuration consists of 6 electrons, 8 photons, and 10 neutrons.
Physics
2 answers:
anyanavicka [17]3 years ago
4 0
B)

If it is known that the atomic number is 8, we know that the electrons are also 8. Since the atomic mass (O18) is 18, the neutrons are 18-8=10. Option B is the correct answer. 

Hope I helped :) 
Xelga [282]3 years ago
4 0

Answer:

B

Explanation:

You might be interested in
You have a string with a mass of 0.0133 kg. You stretch the string with a force of 8.89 N, giving it a length of 1.97 m. Then, y
Kazeer [188]

Answer:

(i) The wavelength is 0.985 m

(ii) The frequency of the wave is 36.84 Hz

Explanation:

Given;

mass of the string, m = 0.0133 kg

tensional force on the string, T = 8.89 N

length of the string, L = 1.97 m

Velocity of the wave is:

V = \sqrt{\frac{F_T}{M/L} } \\\\V = \sqrt{\frac{8.89}{0.0133/1.97} } \ = 36.29 \ m/s

(i) The wavelength:

Fourth harmonic of a string with two nodes, the wavelength is given as,

L = 2λ

λ = L/2

λ = 1.97 / 2

λ = 0.985 m

(ii) Frequency of the wave is:

v = fλ

f = v / λ

f = 36.29 / 0.985

f = 36.84 Hz

3 0
4 years ago
Cells that remain as sources of other cells are called
inna [77]
They are called stem cells. This cells are undifferentiated which means it can specialize in other types when it receives the right stimuli. They can divide through mitoses and become more stem cell or become a bone, muscle, blood cell, etc.

They can have 2 origins: embryos or some human tissue; their function is to regenerate or substitute damaged cells
8 0
3 years ago
water is pumped from a stream at the rate of 90kg every 30s and sprayed into a farm at a velocity of 15m/s. Calculate the power
nikitadnepr [17]

Answer:

340 W

Explanation:

Power = change in energy / change in time

P = ΔKE / Δt

P = ½ mv² / Δt

P = ½ (90 kg) (15 m/s)² / (30 s)

P = 337.5 W

Rounded to 2 significant figures, the power is 340 W.

7 0
3 years ago
What is the answer to this question?
dem82 [27]
Acceleration is a change in *speed* over time. In this case, the speed of the car increased by 90 km/hr in 6 s, giving it a rate of 90 km/hr/6s, or 15 km/hr/s. We’re asked for the acceleration in m/s^2, though, so we’ll need to do a few conversions to get our units straight.

There are 1000 m in 1 km, 60 min, or 60 * 60 = 3600 s in 1 hr, so we can change our rate to:

(15 x 1000)m/3600s/s, or (15 x 1000)m/3600 s^2

We can reduce this to:

(15 x 10)m/36 s^2 = 150 m/36 s^2

Which, dividing numerator and denominator by 36, gets us a final answer of roughly 4.17 m/s^2
3 0
3 years ago
What equation can be used to calculate either wavelength, frequency or speed?
lakkis [162]

Answer:

speed = wavelength * frequency

Explanation:

Thenks and mark me brainliest :)

7 0
3 years ago
Other questions:
  • An alpha particle (q = +2e, m = 4.00 u) travels in a circular path of radius 4.29 cm in a uniform magnetic field with B = 1.53 T
    15·1 answer
  • HELP ASAPP!!!! MARKING BRAINLIEST!
    15·2 answers
  • Please answer please please <br><br><br>Physics ​
    6·1 answer
  • The nuclear fuel distribution in a nuclear reactor is chosen so that when in operation the wall temperature of the reactor is a
    8·1 answer
  • Sedimentary rocks are the only rocks that can potentially containa.fossils.c.fractures.b.minerals.d.faults. Please select the be
    15·2 answers
  • ILL RATE YOU A 5, THANK YOU, AND MARK YOU AS BRAINLIEST! HURRY!
    13·2 answers
  • A particle with charge 8 µC is located on the x-axis at the point −10 cm , and a second particle with charge 3 µC is placed on t
    12·1 answer
  • Express the distance between the moon and earth in meters with a meter prefix (km).
    8·2 answers
  • What is the difference between mass density and weight density?
    6·1 answer
  • Tyler is in downtown San Antonio entertaining the tourists with amazing feats of physics. He carries a nickel
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!