What formula can be used to calculate [H30+]?
Answers
[H3O+] is just the same with [H+]. There are quite a few relationships between [H+] and [OH−] ions. And because there is a large range of number between 10 to 10-15 M, the pH is used. pH = -log[H+] and pOH = -log[OH−]. In aqueous solutions, [H+ ][OH- ] = 10-14.
Related Questions
What leads to the development of the theory?
Which of the following is not one of the observed characteristics of our solar system?all planets go in the same circular direction all planets look as though they lie along a flattened circular plane or disk the Sun and planets rotate in the same direction all moons orbit planets in a counterclockwise direction
How much force is needed to accelerate a 1000-kg car at a rate of 3 m/s2
fastest humans can reach speeds of about 11 m/s. part a in order to increase his gravitational potential energy by an amount equal to his kinetic energy at full speed, how high would such a sprinter need to climb? express your answer to two significant figures and include the appropriate units.
elastic potential energy
kinetic energy
radiant energy
thermal energy
Answers
When a spring is compressed, its potential energy is increased. Specifically, the form of potential energy that increases is called elastic potential energy. The correct answer is "elastic potential energy."
When a spring is compressed, work is done to compress the spring, and this work is stored in the spring as potential energy. The potential energy is stored in the spring in the form of potential energy associated with its deformation, which is called elastic potential energy. When the spring is released, the stored potential energy is converted back into kinetic energy, which causes the spring to expand or oscillate.
To learn about Kinetic Energy click:
#SPJ7
Answers
Second year profit: $12,000 * 1.06
Third year profit: $12,000 * 1.06^2
Fourth year profit: $12,000 * 1.06^3
Fith year profit: $12,000 * 1.06^4 =$15,149.72
:
In this exercise we have to use the knowledge of finance to calculate the profits that Korey expect to make is $15,149.72.
So organizing the information given in the statement we find that:
- average $1,000 of profit
- 6% each year for the next 4 years
Doing these calculations we find that:
See more about fiances at brainly.com/question/10024737
Answers
You put a spoon into a cup of really hot coffee. After a couple of minutes,
the top of the spoon is too hot to handle. The spoon CONDUCTED the heat
from the hot liquid up to the other end.
No material moved. The heat just flowed through the material.
Convection . . . . .
You put a pot of cold water on the stove and turn on the heat. The flame
heats the water at the bottom of the pot. The heated water rises from the
bottom, and cold water from the top sinks to the bottom. Hot fluid rising,
cold fluid sinking, that's CONVECTION.
Material moved, carrying heat from place to place with it.
Radiation . . . . .
-- You come into the house on a cold day, and there's a fireplace burning
across the room. Looking at the fire, you feel heat on your face, but not on
your back, and the room is still cold.
-- The sun produces a lot of heat. Somehow, it gets to the Earth, although
there's nothing in space to carry it.
-- Heat, light, and radio don't need anything to carry them. They can RADIATE
through empty space, as electromagnetic waves.
When the waves are heat, they're called Infrared waves.
Answers
The magnetic field strength will allow the electron to pass between the plates without being deflected is 0.0033 T.
Electric field strength
The electric field strength of the electron is calculated as follows;
E = V/d
E = 200/(0.01)
E = 20,000 V/m
Magnetic field strength
The magnetic field strength is related to electric field in the following formula;
qvB = qE
vB = E
B = E/v
B = (20,000)/(6 x 10⁶)
B = 0.0033 T
Thus, the magnetic field strength will allow the electron to pass between the plates without being deflected is 0.0033 T.
Learn more about magnetic field here: brainly.com/question/7802337
Answer:
3.3 mT
Explanation:
First of all, we need to find the strength of the electric field between the two parallel plates.
We have:
(potential difference between the two plates)
(distance between the plates)
So, the electric field is given by
Now we want the electron to pass between the plates without being deflected; this means that the electric force and the magnetic force on the electron must be equal:
where
q is the electron charge
E is the electric field strength
v is the electron's speed
B is the magnetic field strength
In this case, we know the speed of the electron: , so we can solve the formula to find B, the magnetic field strength:
gravity
friction
weight
Answers
The Correct Answer Is Friction.
Answers
(output work) = (output force) x (distance)
450 N-m = (output force) x (3 meters)
Divide each side
by 3 meters: Output force = (450 N-m) / (3 m)
= 150 newtons .
With all the information given about the output work, we don't need
to know anything about the input work, or even the fact that we're
dealing with a machine.
It's comforting, though, to look back and notice that the output work
(450 N-m) is not more than the input work (500 N-m). So everything
is nice and hunky-dory.
___________________________________
Well, my goodness !
I didn't even need to go through all of that.
Given:
-- The input force to the machine is 50 newtons.
-- The mechanical advantage of the machine is 3 .
That right there tells us that
-- The output force of the machine is 150 newtons.
We don't need any of the other given information.