What is the mass in kilograms of a copper pipe that weighs 12.5 pounds? (1 lb = 453.6 g)?

To solve this problem we will apply the concepts of conversion. We will simply carry the value of pounds to kilograms, so from the statement we have the equivalent:

Now if 1 lb is equivalent to that value, 12.5 lb would be

Note that the values are available in this order and the units are also canceled and the kilograms are maintained.

not moving. pos accel,

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle