20. A body of mass 20kg lies on a horizontal floor
and is acted on by constant forces of
magnitudes 100N and mN in the directions
180° and 060° respectively, where m is a
constant. The body begins to move in the
direction 090°. If there is also a resistance of
per kg to the motion of the body,
(a) calculate the value of m and the magnitude
of the resultant force acting on the body.
(b) Find the acceleration of the body.

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red

Let x = a + bi and y = c + di and z = f + gi. which statements are true?