Which of these causes seasons on earth? a. tilt of earth on its axis and movement of sun over time b. movement of earth around sun and tilt of earth on its axis c. movement of sun over time and spinning of earth on its axis d. spinning of earth on its axis and movement of earth around sun

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

Which articulations allow for greatest range of motion?