The ball has a weight of 15 lb and is fixed to a rod having a negligible mass. If it is released from rest when theta = 0 deg., determine the angle theta at which the compressive force in the rod becomes zero (see attachment for an illustration)
answer should be 48.2 deg. Not sure how to get there though.
*Please see attachment for diagram.
Question:
The ball has a weight of 15 lb and is fixed to a rod having a negligible mass. If it is released from rest when theta = 0 deg., determine the angle theta at which the compressiveforce in the rod becomes zero.
Rectangular beam has cross sectional area of 2" x 4". The beam is subjected to a longitudinal compressiveforce of 6000 lbs. The unit strain is 1 x 10-6 ft/ft. What is the original length if the beam is compressed 1 x 10-6 ft?
A circular cross sectional bar with a diameter of 3.25 inches is loaded with a uniform axial compressive load of 22,750 pounds. What is the compressive stress along a cross section of the bar?
A. Cannot be determined because the length of the bar is unknown
B. Over 10,000 psi
C. Less than 1,000 psi
D. Between 2,000 and 9
1) Which material would have the strongest compressive strength?
i) egg shell 11) a ream of paper 111) pile of dry sand iv) rope v)shopping bag
2) Hydrogen is to a proton as helium is to.
a) an alpha particle. b) a beta particle c) a gamma particle
d) an electron e) a neutron
3) A high -energy Physic
A force of 1.0 * 10^3 N is applied to a steel rod of length 1 m and a circular cross-section of area 10 cm^2. Find the elongation of the rod. Young's modulus for steel is 2.0 * 10^11 Pa.
A uniform metal rod, with a mass of 3.1 kg and a length of 1.2m, is attached to a wall by a hinge at its base. A horizontal wire bolted to the wall 0.51 m above the base of the rod holds the rod at an angle of 25 degrees above the horizontal. The wire is attached to the top of the rod.
(a) Find the tension in the wire.
A circular cross section solid steel shaft 3" in diameter and 4 feet long is fixed at one end and free at the other. As shown in the figure below, the shaft is subjected to an axial tensile load of 50,000 lbs. If the force P = 390 lbs, what is the combined stress at point A and point B. Indicate whether they are compressive o
1. The figure below shows the forces acting on a tibia when a person stands on the ball of one foot in equilibrium. As shown, the force of the tibia on the ankle joint for a person (of weight 750 N) standing this way is 2800 N. The tibia has a length of 0.4 m, an average inner diameter of 1.3 cm, and an average outer diameter
See attached file for diagram. Provide step by step calculations for the problem.
Parallel conducting tracks, separated by 2.17 cm, run north and south (the figure below ). There is a uniform magnetic field of 1.25 T pointing upward (out of the page). A 0.0404-kg cylindrical metal rod is placed across the tracks and a batter
