i-beams are the choice for structural skyscrapers because of their high functionality.
the shape of i-beams makes them excellent for unidirectional bending parallel to the web.
the horizontal flanges resist the bending movement, while the web resists the shear stress.
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Answer:
-30m
Explanation:
displacement = final position - initial position, or d = -20-10
Answer:
<em>(a)The period will increase by 2 times</em>
<em>(b)The period will increase by 2.45 times</em>
Explanation:
(a)
When the mass increased by a factor of 4 then;
=×
The period is doubled by 2 times
(b) if the pendulum is taken to the moon where the force of gravitation is about g/6 then
=2.45
The period will increase by 2.45 times
Answer:
Velocity of throwing = 34.335 m/s
Explanation:
Time taken by the tennis ball to reach maximum height, t = 0.5 x 7 = 3.5 seconds.
Let the initial velocity be u, we have acceleration due to gravity, a = -9.81 m/s² and final velocity = 0 m/s
Equation of motion result we have v = u + at
Substituting
0 = u - 9.81 x 3.5
u = 34.335 m/s
Velocity of throwing = 34.335 m/s
Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced or sinks due to gravity into the mantle. Regions where this process occurs are known as subduction zones.