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
Fantom [35]
3 years ago
11

An atomic physicist determines that an atom is composed of 8 positively charged particles and has a mass of 15 amu. which is the

best conclusion that can be drawn? 1.the atom has 7 neutrons and 8 protons. 2. the atom has 7 electrons and 8 protons. 3. the atoms has 8 neutrons and 7 electrons. 4. the atoms has 8 electrons and 7 protons.
Physics
2 answers:
stellarik [79]3 years ago
5 0
<span> 1.the atom has 7 neutrons and 8 protons....

because the positively charged particles are the protons ...and 8 is also the atomic number ...so number of neutrons can be calculated by subtracting </span>atomic number from the mass number...which gives us the neutrons 7 ...

Hope it helps !!!
WARRIOR [948]3 years ago
3 0

Answer:

1.the atom has 7 neutrons and 8 protons.

Explanation:

In any atom positively charged particles are protons while the total mass of the atom is due to protons and neutrons both

So here we can say that

Number of protons in this atom is 8

Total number of neutron + protons = total mass

N + Z = 15

so we have

N + 8 = 15

N = 7

so correct answer will be

1.the atom has 7 neutrons and 8 protons.

You might be interested in
I need help doing this i don’t understand what to do
Hatshy [7]

Answer:

You need to write an essay with 800 to 1,200 words. That talks about the significance of one of the seminal works (Definition- a work that strongly influenced people. Example: Martin Luther King Jr's speech "I Have A Dream") in the unit and how it connects to current issues (Example- Politics). It should be clearly stated and should be well supported by research (Example- a trustworthy article talking about its influence). You should properly cite at least 3 good sources from different perspectives. (Example- a republicans view for one source, a democratic for another, and a neutral for the third) You should also use direct quotes (Example: "Let them eat cake." - Marie Antoinette) and paraphrase- put it in your own words. (Example: Marie Antoinette said that they should eat cake.) I hope this helps, good luck! :)

Explanation:

7 0
3 years ago
How much work is required to move
Nikitich [7]
The work is path independent since we have a conservative force.

Thus W=d\cdot\frac{q\cdot U}{d^2}=\frac{3.0\cdot9.0}{0.010}=\boxed{2700 J}

Answer (1)
6 0
4 years ago
a pillow , a textbook and a paper airplane are dropped from the top of a tall building at the same time. consider what you have
MAVERICK [17]

A textbook would hit the ground first


Factors:

-Textbook weighs most

-Pillow is flat and fluffy not very aerodynamic) also is very light

-Paper airplane will glide to the ground do to its wings and will hit the ground last

3 0
3 years ago
Read 2 more answers
Two spheres A and B are projected off the edge of a 1.0 m high table with the same horizontal velocity . sphere A has a mass of
Arte-miy333 [17]

Answer:

c. because A will land first becuase its heavier

Explanation:

3 0
3 years ago
Motor oil , with a viscosity of 0 . 250 Ns / m2 , is flowing through a tube that has a radius of 5 . 00 mm and is 25 . 0 cm long
Thepotemich [5.8K]

Answer:

1.1775 x 10^-3 m^3 /s

Explanation:

viscosity, η = 0.250 Ns/m^2

radius, r = 5 mm = 5 x 10^-3 m

length, l = 25 cm = 0.25 m

Pressure, P = 300 kPa = 300000 Pa

According to the Poisuellie's formula

Volume flow per unit time is

V=\frac{\pi \times Pr^{4}}{8\eta l}

V=\frac{3.14 \times 300000\times \left ( 5\times 10^{-3} \right )^{4}}{8\times 0.250\times 0.25}

V = 1.1775 x 10^-3 m^3 /s

Thus, the volume of oil flowing per second is 1.1775 x 10^-3 m^3 /s.

3 0
3 years ago
Other questions:
  • 2. A/An _______ is composed of two or more types of matter that can be present in varying amounts.
    12·2 answers
  • A small water pump is used in an irrigation system. The pump takes water in from a river at 10oC, 100 kPa at a rate of 5 kg/s. T
    11·1 answer
  • A cyclist rode an average speed of 10 miles per hour for 15 miles how long was the ride
    10·1 answer
  • Radio waves are the only type of electromagnetic wave that is a transverse wave.
    10·1 answer
  • In which electric circuit would the voltmeter read 10 volts ?
    15·1 answer
  • State any ten reasons why students in Uganda need to study physics.(use examples of the possible technological advancements whic
    9·1 answer
  • A Ferris Wheel, starting from rest, undergoes a constant angular acceleration of 0.033 rad/s2 to get to its final operating angu
    12·1 answer
  • Compare the signs of ƒ for lenses and mirrors.
    13·2 answers
  • What is the mechanical advantage of a lever that is 20 meters
    13·2 answers
  • A balloon is rubbed against a sweater. Which of the following describes the result of this interaction?(1 point)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!