Explanation:
The relation between pressure and area is as follows;
Here, P is the pressure, F is the applied force and A is the area.
There is an inverse relationship between the pressure and area.
If the area is less then the pressure is more. If the area is more then the pressure is less.
It is given in the problem that It is much easier to slice a piece of pie with the edge of a sharp knife than with the edge of a pencil. The area of the edge of a pencil is more than the area of the edge of the knife. Then, less pressure is applied in case of using the edge of the pencil.
More force is required to cut the slice of pie by using pencil.
Answer:
a)
b)
c)
d)
Explanation:
From the question we are told that:
Diameter
Conductivity
Electron mobility
Electric field
a)
Generally the equation for Charge Density is mathematically given by
Therefore
b)
Generally the equation for current density is mathematically given by
c)
Generally the equation for current in wire is mathematically given by
d)
Generally the equation for electron draft velocity. is mathematically given by
Answer:
The acceleration will decrease/reduce
Explanation:
Newton in his second law of motion states that the acceleration of an object is dependent on the force and mass applied on the object. Using the equation as follows:
F = m × a
Where;
F = force (N)
m = mass (kg)
a = acceleration (m/s²)
Acceleration (a) is directly proportional to the force (F) applied but inversely proportional to the mass (m).
According to this question, a friend drops 50 pounds of dog food into a cart being pushed with speed. This means that the mass/weight of the cart was increased. Since the acceleration is inversely proportional to the mass of an object, this means that the acceleration of the cart will DECREASE/REDUCE as the mass increases.
Answer:
a) 1.51Vm/s
b)Id=0.134A
Explanation:
(a) The time rate of change of electric flux between the plates can be computed by using:
where Ic is the current of the capacitor, e0 is the dielectric permittivity of vacuum and A is the area of the capacitor.
(b) The displacement current coincides with capacitor current:
Id = 0.134A
hope this helps!!