Answer:
The pressure is .
Explanation:
Calculate the area of the rectangular container.
A=LB
Here, L is the length and B is the breadth.
Put L=0.125 m and B= 0.209 m.
A=(0.125)(0.209)
The expression for the pressure in terms of area and force is as follows;
Here, P is the pressure and F is the force.
Put and F= 4.47 N.
Therefore, the pressure of the given sample is .
Answer:
The maximum no. of electrons-
Solution:
As per the question:
Maximum rate of transfer of charge, I = 1.0 C/s
Time, t = 1.0 h = 3600 s
Rate of transfer of charge is current, I
Also,
Q = ne
where
n = no. of electrons
Q = charge in coulomb
I = current
Thus
Q = It
Thus the charge flow in 1. 0 h:
Maximum number of electrons, n is given by:
where
e = charge on an electron =
Thus
........loke above in the picture
The average force on the fist is 25 N
Explanation:
First of all, we need to calculate the acceleration of the fist, which is equal to the rate of change of its velocity:
where:
u = 0 is the initial velocity (it starts from rest)
v = 5 m/s is the final velocity
t = 0.1 s is the time elapsed
Substituting,
Now we can calculate the average force applied to the fist by using Newton's second law of motion, which states that the net force applied on an object is equal to the product between its mass and its acceleration:
where here we have:
m = 0.5 kg (mass of the fist)
(acceleration)
And solving for F, we find the force:
Learn more about force and acceleration:
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