Answer:
Terminal velocity of object = 12.58 m/s
Explanation:
We know that the terminal velocity is attained when drag force and gravitational force are of the same magnitude.
Gravitational force = mg = 80 * 9.8 = 784 N
Drag force = 
Equating both, we have
So v = 12.58 m/s or v = -15.58 m/s ( not possible)
So terminal velocity of object = 12.58 m/s
Answer:
7A
Explanation:
Current I = potential difference V ÷ Resistance R
I = V/R ........1
The overall resistance of parallel resistors is;
1/Rt = 1/R1 + 1/R2 ........2
Given;
V = 10V
R1 = 2 ohms
R2 = 5 ohms
Substituting the values into equation 2, to calculate the overall resistance;
1/Rt = 1/2 + 1/5
1/Rt = 7/10
Rt = 10/7 ohms
From equation 1, we can solve for the total current;
I = V/Rt = 10/(10/7)
I = 7A
The total current I flowing through a system is 7A
Answer:
Time seem to flow in only one direction because it's from entropy. In tiny physics, time is directionally neutral.
Explanation:
