The canadian oil sands industry has generated one billion (109) m3 of contaminated fine tailings. these tailings are a mixture of fine solid particles and water. the solids, which have an average specific gravity of 2.67, account for 32% of the weight of the tailings. (a) how much will it cost, in canadian dollars, to remediate all of the tailings. assume that it costs $1.5 us to remediate 1 ft3 (i. e. one cubic foot) of tailings, and that $1.00 can is worth $0.75 us a foot is 30.48 cm. (b) calculate the volume of solid particles (c) calculate the total mass of tailings

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

a skateboard rolling across the street - apex