-- reduce the length of a wire to 1/2 . . . cut the resistance in half
-- reduce the diameter to 1/4 . . . reduce the cross-section area by (1/4²) . . . increase the resistance by 16x .
-- R2 = (R1) · (1/2) · (16) = 8 · R1
<em>-- R2 / R1 = 8</em>
Answer:
4.5 meters is your Answer goood luck please give 5 star
Explanation:
Answer:
option D
Explanation:
The correct answer is option D
Potential energy of an object is because of its location.
Expression of potential energy
P E = m g H
where H is the height of the object.
g is acceleration due to gravity, 9.8 m/s²
m is the mass of the object.
Potential energy is directly proportional to the location of the object.
If the height of the object is more than the potential energy of the object will also increase.
Force is equal to weight, F= ma acceleration "a", is now due to gravity g = 9.8 m/s²
Given: Mass m = 1,000 Kg
F =ma W = mg = (1,000 Kg)(9.8 m/s²)
F = 9,800 N
