So now, we can say that one square metre is equal to 10000 square centimetres. So to change 460000 square centimetres into square metres, we take our value of 460000. And we divide by 100 squared. This is the same as 460000 divided by 10000, which is 46 square metres.
Answer: 0.16
Explanation:
Newton's second law states that the resultant of the forces exerted on the bookcase is equal to the product between the mass (m) and the acceleration (a):

where
F = 58 N is the force applied
Ff is the frictional force
Substituting, we find the frictional force

The frictional force has the form:

where
is the coefficient of kinetic friction. Re-arranging the formula, we can find the coefficient:

The wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
Answer:
4N
Explanation:
a = (7-3)/5 = 0.8m/s^2
F = ma = (5)(0.8) = 4 Newtons