Question

**1- Given that the human body is mostly made of water,
estimate the total amount of positive charge in a 69 kg
person.**

Express your answer to two significant figures and include the appropriate units

Please answer this question

Answer #1

Solution in the uploaded image

Problem 18.77: Potential in human cells.
Some cell walls in the human body have a layer of negative
charge on the inside surface and a layer of positive charge of
equal magnitude on the outside surface. Suppose that the charge
density on either surface is ± 0.50×10−3 C/m2, the cell wall is 5.0
nm thick, and the cell-wall material is air.
Part A Find the magnitude of E⃗ in the wall between the two
layers of charge. Express your answer...

Some cell walls in the human body have a layer of negative
charge on the inside surface and a layer of positive charge of
equal magnitude on the outside surface. Suppose that the charge
density on either surface is ± 0.50×10−3 C/m2, the cell wall is 5.1
nm thick, and the cell-wall material is air.
Notes about Problem 18.77 and a Hint for Part D: The cell
wall/membrane creates a separation of charge between the inside and
outside of a...

A
human body is mostly water it contains 2/3 hydrogen one for the
oxygen 1/10 carbon and less than 1% higher mass elements like iron
what is the total number of protons in your body from hydrogen
oxygen and carbon that is neglect higher mass trace elements total
number of neutrons total number of electrons and assume you’re mass
is 62 KG

Estimate the positive charge q present in an average human due
to molecular protons. (body is made of water)

Please show the steps
1) What is the magnitude of the electric field a distance 1.5 mm
from an electron?
E=?
2) Three point charges are placed on the x-axis as follows: 22
μC at x=0; 30 μC at x=0.60m;
and -10 μC at x=1.2m.
A) Find the net force on the 22 μC point charge. Assume
the direction of the x-axis as positive.
Express your answer to two significant figures and include the
appropriate units.
F1=?
B) Find the...

1- What is the current in amperes if 1300 Na+Na+ ions flow
across a cell membrane in 3.2 μsμs ? The charge on the sodium is
the same as on an electron, but positive.
Express your answer to two significant figures and include the
appropriate units.
2- What voltage will produce 0.45 AA of current through a
4800-ΩΩ resistor?
Express your answer to two significant figures and include the
appropriate units.
3- An electric device draws 4.60 AA at 240...

If 5.00 m3 of water at 0?C is frozen and cooled to -14 ?C by
being in contact with a great deal of ice at -14 ?C, estimate the
total change in entropy of the process.
Express your answer to two significant figures and include the
appropriate units.

A.)
calculate the heat change in kilocalories for condensation of 3.5
kg of steam at 100 Celsius.(Express your answer as a positive value
using two significant figures and include the appropriate units)
B.) calculate the heat change in kilojoules for condensation
of 185 g of steam at 100 Celsius.
(Express your answer as a positive value using three
significant figures and include the appropriate units)

A high diver leaves the end of a 6.0 m high diving board and
strikes the water 1.4 s later, 4.0 mbeyond the end of the board.
Considering the diver as a particle,
Determine the magnitude of her initial velocity,
v⃗ 0.
Express your answer to two significant figures and include the
appropriate units.
Determine the angle of her initial velocity,
v⃗ 0.
Express your answer to two significant figures and include the
appropriate units.
Determine the maximum height reached....

A 300 kg wooden raft floats on a lake. When a 75 kg man stands
on the raft, it sinks 4.0 cm deeper into the water. When he steps
off, the raft vibrates for a while.
Part A
What is the frequency of vibration?
Express your answer to two significant figures and include the
appropriate units.
f =
Part B
What is the total energy of vibration (ignoring damping)?
Express your answer to two significant figures and include the
appropriate...

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