Answer:
(a)
(b)
Explanation:
(a) The linear speed in a circular motion is defined as the distance traveled in one revolution divided into the time taken to complete one revolution. So, we have:
Here r is the radius of the circular motion, that is, the distance from the central shaft to the blade tip. As can be seen this time is the period, which is defined as:
is the angular speed. Replacing this in the linear speed equation:
(b) The radial acceleration is given by:
Answer:
1.) Employee Driven Machines
2.) Self Driven Machines
Explanation:
A machine is a mechanical device that utilizes the application of forces to carry out an operation. It's operation can be "employee driven" (i.e it is operated by a person) or "self driven" (i.e it is operated by itself).
Answer:Magnitude of the butterfly's displacement is 11.4 m
Explanation:
from the above figure x distance is from center of the garden to edge = 7 m
height of the tree is y= 9 m
magnitude of the butterfly's displacement is
=
=
=11.4 m
Answer:
The answer is = 5.81*10-7 N/m
Explanation:
From the above question, the first step to take is to find the magnitude of the net force per unit length acting on wire 3 due to the currents in the other wires
Solution
Given
The magnitude of the net force per unit length moving on wire 3 due to the currents in the other wires is
= I₃* B
= I₃*[-μ₀I₁/(2π*2d) + μ₋₀I₂/(2πd) + μ₀I₄/(2πd) + μ₀I₅/(2π*2d)] (+y direction)
Thus,
= μ₀I₃/(2πd) * (-I₁/2 + I₁ + I₄ + I₅/2)
Therefore, the magnitude of the net force per unit length acting on wire 3 due to the currents in the other wires is = 5.81*10-7 N/m
1) Time to get the highest point of it pathway>
Vf = Vo - g*t
Vf = 0 (condition of maximum height)
Vo = 5.33 m/s
g = 9.81 m/s
=> t = Vo / g = 5.33 m/s / 9.81 m/s = 0.543 s
2) Time to return from the highest point = time to get to the highest point = 0.543 s
Total time = 0.543s + 0.543 s = 1.086 s ≈ 1.09 s
Answer: 1.09 s