A goose is flying south for the winter at a constant speed. Keep in mind that one mile is 1.61 km, and one pound is 454 g.The go
1 answer:
Answer:
kinetic energy = 84.0260 joules
Explanation:
given data
one mile = 1.61 km
one pound = 454 g
mass = 20.1 lb = 9.1172 kg
flying velocity = 9.60 miles/h = 9.60 × 1.61 × = 4.2933 m/s
solution
we get here kinetic energy that is express as
kinetic energy = 0.5 × m × v² .........................1
put here value and we get
kinetic energy = 0.5 × 9.1172 × 4.2933²
kinetic energy = 84.0260 joules
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Answer:
30 Liters of 40% acid solution and 10 L of 60% acid solution is needed.
Explanation:
Let volume of the 40% acid solution be x.
Let volume of the 60% acid solution be y.
Volume of solution formed after mixing both solution = 40 L
x + y = 40 L..[1]
Volume of acid 40% solution = 40% of x= 0.4x
Volume of acid 60% solution = 60% of y= 0.6y
Volume of acid formed = 45% of 40 L =
..[2]
Solving [1] and [2]
x = 30 L , y = 10 L
30 Liters of 40% acid solution and 10 L of 60% acid solution is needed.