Vector is perpendicular to x axis or i component.
Hence i component is 0
j component is 63.5
Answer:
(a). Energy is 64,680 J
(b) velocity is 51.43m/s
(c) velocity in mph is 115.0mph
Explanation:
(a).
The potential energy of the payload of mass is at a vertical distance is
.
Therefore, for the payload of mass at a vertical distance of , the potential energy is
(b).
When the payload reaches the bottom of the shaft, all of its potential energy is converted into its kinetic energy; therefore,
(c).
The velocity in mph is
Answer:
The separation between the two lowest levels =
The values of n where the energy of molecule reaches 1/2 kT at 300K =
The separation at this level = 1.8 * J
Explanation:
Knowing the formula
En =
Mass of oxygen molecule
m (O2) = 32 amu *
So the energy diference between the two lowest levels:
E2 - E1 =
E2 - E1 =
Now we should find n where the energy of molecule reaches 1/2 kT
En = =
=
by the end is necessary to calculate the separation of the level
En - En-1 =
= 1.8 * J
Answer: 7291.2 joules
Explanation:
Work is done when force is applied on an object over a distance.
Thus, Workdone = Force X distance
Since Distance moved by box = 12 metres
mass of box = 62kg
Acceleration due to gravity when box was lifted is represented by g = 9.8m/s^2
Recall that Force = Mass x acceleration due to gravity
i.e Force = 62kg x 9.8m/s^2
= 607.6 Newton
So, Workdone = Force X Distance
Workdone = 607.6 Newton X 12 metres
Workdone = 7291.2 joules
Thus, 7291.2 joules of work was done.
The energy stored in the membrane is
Explanation:
The capacitance of a parallel-plate capacitor is given by
where
k is the dielectric constant of the material
is the vacuum permittivity
A is the area of the plates
d is the separation between the plates
For the membrane in this problem, we have
k = 4.6
Substituting, we find its capacitance:
Now we can find the energy stored: for a capacitor, it is given by
where
is the capacitance
is the potential difference
Substituting,
Learn more about capacitors:
brainly.com/question/10427437
brainly.com/question/8892837
brainly.com/question/9617400
#LearnwithBrainly