Vector A→ A
→
, having magnitude 2.5m
2.5
m
, pointing 37∘
37
∘
south of east and vector B→
B
→
having magnitude 3.5m
3.5
m
, pointing 20∘
20
∘
north of east are added. What is the magnitude of the resultant vector?

Acylindrical specimen of a nickel alloy having an elastic modulus of 207 gpa (30 × 106psi) and an original diameter of 10.2 mm (0.40 in.) experiences only elastic deformation when a tensile load of 8900 n (2000 lbf) is applied. compute the maximum length of the specimen before deformation if the maximum allowable elongation is 0.25 mm (0.010 in.)

Answer quickly (15 points) a comet is approaching earth. describe earth’s gravitational pull as the comet gets closer to it. a. remain constant b. increase c. decrease d. reversed

Work = force × a. work b. energy c. distance d. momentum