Answer:
2.17 Mpa
Explanation:
The location of neutral axis from the top will be
Moment of inertia from neutral axis will be given by
Therefore, moment of inertia will be
Bending stress at top=
Bending stress at bottom= Mpa
Comparing the two stresses, the maximum stress occurs at the bottom and is 2.17 Mpa
Red shift of star is defined as its wavelength. Star with smaller red shift have smaller wavelength, while star with greater red shift have greater wavelength. We can say that, Star X have smaller wavelength, while star Y have greater wavelength.
Yes light travels at 3.00
The maximum height of the ball during this interval is 4.9 m (Option A)
<h3>How to determine the time to reach maximum height</h3>
The time taken to reach the maximum height can be obtained as follow:
- Time for the entire trip (T) = 2 s
- Time to reach maximum height (t) = ?
T = 2t
2 = 2t
Divide both side by 2
t = 2 / 2
t = 1 s
<h3>How to determine the maximum height reached by the ball</h3>
The maximum height reached by the ball can be obtained as follow:
- Acceleration due to gravity (g) = 9.8 m/s²
- Time to reach maximum height (t) =?
- Maximum height (h) =?
h = ½gt²
h = ½ × 9.8 × 1²
h = ½ × 9.8 × 1
h = 4.9 m
Thus, the maximum height reached by the ball is 4.9 m (Option A)
Learn more about motion under gravity:
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Answer:
The average power of this wave is 5.42 Watts.
Explanation:
The transverse wave on a rope is given by :
The general equation of the transverse wave is :
Let the mass per unit length of the rope is 0.0500 kg/m.
The average power of this wave is given by :
Where
is the linear mass density,
A = 0.75 cm = 0.0075 m
Propagation constant,
Angular velocity,
f = 125 Hz
Velocity,
Average power of the wave is :
P = 5.42 Watts
So, the average power of this wave is 5.42 Watts. Hence, this is the required solution.