Astudent runs 100 meters in 11 seconds. what is the speed of the student?
use the following formulas: speed = distance/time; 1 mile = 1609 meters

a.) 9.1 miles per hour
b.) 16 miles per hour
c.) 20.3 miles per hour
d.) 24 miles per hour

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

Aswimmer is determined to cross a river that flows due south with a strong current. initially, the swimmer is on the west bank desiring to reach a camp directly across the river on the opposite bank. in which direction shoud the swimmer head? a. the swimmer should swim southeast. b. the swimmer should swim south. c. the swimmer shuold swim northeast. d. the swimmer should swim due north. e. the swimmer should swim due east.

Resistivity of a material is the resistance of a cm long sample of the material of 1 cm2 cross-sectional area.