A student is applying the scientific method to a study of the effect of temperature on plant growth. Each day he writes down the
1 answer:
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Answer:
a) A1 =
b) A1 = 2.688 cm
c) Q1 = A1 x v1
d) v1 = 3.1994 m/s
e) A2 =
f) A2 = 0.7963cm
Explanation:
a) Area =
r =
thus,
area =
A1 =
A1 =
A1 = 2.688 cm
c) Flow rate = Area x velocity ( refer brainly.com/question/13997998)
Q1 = A1 x v1
d) From the above equation,
v1 = =
= 319.94 cm/s = 3.1994 m/s
e) Since the flow rate Q1 is constant throughout the hose, Av is a constant.
i.e. A1 x v1 = A2 x v2
thus,
A2 =
f) v2 = 10.8 m/s.
substituting the values in the above equation,
A2 = = 0.7963cm