This diagram shows a 40-kg object being pulled in one direction while friction acts on it in the opposite direction. Friction
20 N
Pull
140 N
40 kg
What is the net force on the object?
A 140 N
B. 20 N
C. 160 N
D. 120 N
Sign ou

What must occur for air masses to form fronts

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?

The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as