Answer:
B
Explanation:
I need 20 characters to answer
Answer:
Answer in Explanation
Explanation:
Whenever we talk about the gravitational potential energy, it means the energy stored in a body due to its position in the gravitational field. Now, we know that in the gravitational field the work is only done when the body moves vertically. If the body moves horizontally on the same surface in the Earth's Gravitational Field, then the work done on the body is considered to be zero. Hence, the work done or the energy stored in the object while in the gravitational field is only possible if it moves vertically. This vertical distance is referred to as height. <u>This is the main reason why we require height in the P.E formula and calculations.</u>
The derivation of this formula is as follows:
Work = Force * Displacement
For gravitational potential energy:
Work = P.E
Force = Weight = mg
Displacement = Vertical Displacement = Height = h
Therefore,
P.E = mgh
Answer:
Bubbles paused
Explanation:
the air bubble doesn't rise because it is no lighter than the water around it—there's no buoyancy. The droplet doesn't fall from the leaf because there's no force to pull it off. It's stuck there by molecular adhesion.
for instance, onto the International Space Station, gravity becomes negligible, and the laws of physics act differently than here on Earth
On Earth, the buoyancy of the air bubbles causes them to rise to the top together, creating a segregation between air and water. However, in microgravity, nothing forces the air bubbles to interact and thus rise together, Green said.
Answer:
a thing or things belonging to someone; possessions collectively.
Explanation:
Answer:
A. N = L/πD
B. N = 389 turns
C. L₂ = DN
D. L₂ = 17.5 m
E. B = 2.3 x 10⁻⁴ Web
Explanation:
A.
For each number of turn a length of wire equal to the circumference of tube. Therefore, the no. of turns can be given as:
N = L/2πr
<u>N = L/πD</u>
where,
N = No. of turns
D = Diameter of tube
L = Length of wire
B.
using values in the equation, we get:
N = 55 m/π(0.045 m)
<u>N = 389 turns</u>
C.
Since, there is only one layer of loop. Therefore, the length of solenoid can be easily found out by adding the diameter of wire for each turn. Hence:
L₂ = DN
where,
L₂ = Length of the solenoid
D = diameter of wire
N = No. of Turns
D.
using values in the equation we get:
L₂ = (0.045 m)(389)
<u>L₂ = 17.5 m</u>
<u></u>
E.
The magnitude of magnetic field inside solenoid is given by the formula:
B = μ₀NI/L₂
where,
B = Magnetic field inside solenoid
μ₀ = permeability = 4π x 10⁻⁷ T/A.m
I = current = 8.5 A
Therefore,
B = (4π x 10⁻⁷ T/A.m)(389)(8.5 A)/17.5 m)
<u>B = 2.3 x 10⁻⁴ Web</u>