How large a force F is needed in the figure to pull out the 6.0kg block with an acceleration of 1.50 m/s2
if the coefficient of friction at its surfaces is 0.40?​

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).

Bring the fraction a/a-4 to a denominator of 16-a^2