Two stones, a and b, are thrown horizontally from
the top of a clift. stone a has an initial speed of 15
meters per sccond and stone b has an initial speed of
30 meters per second. compared to the time it takes
stone a to reach the ground, the time it takes stone
b to reach the raund is

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over

answer( sicar );