Shows a boom and tie-rod arrangement supporting a load of 6 kn. the tie-rod is made of steel having a tensile yield strength of 400 mpa. (a) what is the safety factor of the tie-rod with respect to static yielding? (b) what is the safety factor of the tie-rod if the vertical rod is rotated 180° so that the 6-kn load acts upward?

Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c