Use your equation sheet for this one. The mass of this 747 plane is 187,000 kg. A force of 561,000 Newtons is used to bring the plane to a halt once it touches down. At what rate did the plane decelerate?

104,907,000,000 m/s2
374,000 m/s^2
3 m/s^2
0.3333 m/s2

b. latent learning (the word "latent" itself means something that exists but isn't obvious, only under certain conditions! )

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form