Answer:
The value is
Explanation:
From the question we are told that
The operating temperature is
The emissivity is
The power rating is
Generally the area is mathematically represented as
Where is the Stefan Boltzmann constant with value
So
Answer:
0.64 m
Explanation:
The first thing is calculate the center of mass of the system.
now multiplying every coordinate x by the mass of each object (romeo, juliet and the boat) and dividing all by the total mass taking by reference the position of juliet.
X_cm = 1.4589 m
When the forces involved are internals, the center of mass don't change
After the movement the center of mass remains in the same distance from the shore, but change relative to the rear of the boat.
X_cm= 2.10 m
this displacement is how the boat move toward the shore.
2.10-1.46= 0.64 m
Answer : The total electric charge of electrons is,
Explanation:
Answer : The number of electrons transferred are,
Explanation :
First we have to calculate the number of electrons.
Number of electrons =
Mass of 1 electron =
Total mass of electron = 2.5 kg
Number of electrons =
Number of electrons =
Now we have to calculate the total electric charge of electrons.
Formula used :
where,
n = number of electrons transferred =
Q = charge on electrons = ?
e = charge on 1 electron =
Now put all the given values in the above formula, we get:
Thus, the total electric charge of electrons is,