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
lyudmila [28]
3 years ago
12

What is the mass defect of lithium? Assume the following: Atomic number of lithium = 3 Atomic mass of lithium = 7.0144 atomic ma

ss units. Mass of 1 proton = 1.0073 atomic mass units. Mass of 1 neutron = 1.0087 atomic mass units.
(A)0.0043 atomic mass units
(B)0.0423 atomic mass units
(C)3.0219 atomic mass units
(D)4.0348 atomic mass units
(E)7.0567 atomic mass units
Physics
1 answer:
Mice21 [21]3 years ago
6 0

<span>3 protons x 1.0073amu = 3.022 </span>
<span>4 neutrons x 1.0087amu = 4.035 </span>

<span>mass = 7.0567amu </span>
<span>mass defect = 7.0567 - 7.0144 = 0.0423amu.....B with your mass of Li</span>
You might be interested in
A ship sets out to sail to a point 120 km due north. an unexpected storm blows the ship to a point 100 km due east of its starti
Pavel [41]
If you draw the problem, it would look like that shown in the attached picture. The total length the ship will now travel can be solved using the Pythagorean theorem. The solution is as follows:

d = √(120)²+(100)²
d = 156.2 km

So, the ship will have to travel 156.2 km to the northwest direction.

8 0
3 years ago
intial velocity is 45km/h, final velocity is 0, time taken is 3 seconds,calculate the retradation of the vehicle and distance tr
V125BC [204]

Answer:

v= u+at

0=45×1000×60×60+3a

_3a=16200045

a=5400015m per sec

4 0
3 years ago
Read 2 more answers
A penny is dropped off the top of the Stratosphere from rest and falls freely with the
Roman55 [17]

Answer:

S = 122.5m

Explanation:

Given the following data;

Acceleration due to gravity = 9.8m/s²

Time, t = 5 seconds

Since it's a free fall, initial velocity, u = 0

To find the displacement, we would use the second equation of motion given by the formula;

S = ut + \frac {1}{2}at^{2}

Where;

  • S represents the displacement or height measured in meters.
  • u represents the initial velocity measured in meters per seconds.
  • t represents the time measured in seconds.
  • a represents acceleration measured in meters per seconds square.

Substituting into the equation, we have;

S = 0*5 + \frac {1}{2}*(9.8)*5^{2}

S = 0 + 4.9*25

S = 122.5m.

3 0
3 years ago
Describe how a drug administered intravenously is absorbed​
Digiron [165]

Answer:

La rapidez con que el fármaco es absorbido en el torrente sanguíneo depende, en parte, del suministro de sangre al músculo: cuanto menor sea el aporte de sangre, más tiempo necesitará el fármaco para ser absorbido.

Para la administración por vía intravenosa se inserta una aguja directamente en una vena

Explanation:

7 0
3 years ago
What equation represents the law of conservation of energy in closed system
svetoff [14.1K]

The first option.

The total mechanical energy before an action (which makes up PE and KE) equals the total mechanical energy after an action.

So

KEi + PEi = KEf + PEf

8 0
3 years ago
Other questions:
  • In which state of matter are particles held together but still able to move around
    9·2 answers
  • Find the force of gravity between two physics students that have masses of 74.0 kg and 82.5 if they are sitting 0.95 m apart
    6·1 answer
  • A 50 kg skydiver is falling downwards and accelerating 6 m/s2 down. What is the net force on the skydiver?
    8·1 answer
  • In a photoelectric experiment, you shine light onto an electrode and record a current of 25 μA. When you apply +500 mV to the el
    12·1 answer
  • What is the sequence of energy transformations from the moment the ball is dropped to the moment the board is bent to its maximu
    15·1 answer
  • What is the kinetic energy of a 30 kg falling object when the object reaches a velocity of 20 m/s?
    7·1 answer
  • Calculate the period of a satellite orbiting the Moon, 98 kmkm above the Moon's surface. Ignore effects of the Earth. The radius
    7·1 answer
  • Arrange an 8-, 12-, and 16-Ω resistor in a combination that has a total resistance of 8.89 Ω pls with de work
    8·1 answer
  • Why should people pay attention to scientists when making decisions?
    5·1 answer
  • Progress of science has not caused any ill effect true or false?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!