23. Find the perimeter of the polar curve r = 4 sin 0. a. 4π b. 8 c. 16x d. 2π 24. A helical spring with a modulus of 100 N/cm has a natural length of 1 m. How much work is required to compress the spring from a length of 80 cm to 60 cm? a. 600 N.m b. 1400 N.m c. 1000 N.m d. 800 N.m

23. Find the perimeter of the polar curve r = 4 sin 0. a. 4π b. 8 c. 16x d. 2π 24. A helical spring with a modulus of 100 N/cm has a natural length of 1 m. How much work is required to compress the spring from a length of 80 cm to 60 cm? a. 600 N.m b. 1400 N.m c. 1000 N.m d. 800 N.m

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Beams

In structural engineering, a beam is a component made of a variety of materials (including steel alloys, and wood) that can resist loads applied laterally to the beam axis. Members, elements, rafters, shafts, and purlins are all terms used to describe beams.

Question

23. Find the perimeter of the polar curve r = 4 sin 0.
a. 4n
b. 8
d. 2π
с. 1 бл
24. A helical spring with a modulus of 100 N/cm has a natural length of 1 m. How much work is required to
compress the spring from a length of 80 cm to 60 cm?
a. 600 N.m
b. 1400 N.m
c. 1000 N.m
d. 800 N.m

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