A baseball players runs 10 meters north towards first base, but gets out and turns
and runs 4 meters east to his dugout, what
is the magnitude of his displacement?
a. 20 meters
b. 116 meters
C. 10.8 meters
d. 14 meters

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.

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?