The incline is frictionless, this means we can use the conservation of energy: the initial kinetic energy of the block
is converted into gravitational potential energy
where h is the height reached by the block as it stops. By equalizing the two formulas, we get
However, this is the maximum height reached by the block. The distance along the surface of the plane is given by:
Hey there!
<span>Which statement best summarizes Gregor Mendel’s contribution to science?
Mendel is considered the "father of genetics". He did NOT increse the number of peas </span>
<span>produced by a single plant using cross-breeding techniques, discover grean peas and yellow peas, or invent the green pea by cross-breeding thousands of pea plants.
This means your answer is option D.
Hope this helps
Have a great day (:
</span>
Answer:
f. Force acting down and constant
Explanation:
At the highest point, the coin will start to free fall and in free fall only force of gravity act, which is always acted downward and its magnitude is mass times g. g=9.81 m/s^2. which makes the force constant.
therefore, the correct answer will be f. Force acting down and constant
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>
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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>