After measurements or observations are made in a scientific investigation, it is most appropriate to A.
formulate a hypothesis.
B.
draw a conclusion.
C.
organize the data in a chart or table.
D.
propose a new scientific question.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

One number is said to be an "order of magnitude" larger than another number if choose one: a. it is 10 times larger. b. it is 5 times larger. c. it is 3 times larger. d. it is 100 times larger. e. it is 2 times larger.

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.