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Gennelle
Questions (10)
A 6.3 g sample of solid NH4NO3 is dissolved in 50g of water, causing the temperature to drop from 24°C to 19°C. Calculate the
2 answers
2,130 views
The specific heat of a copper metal is 0.385J/g-°K. How many kJ of heat are needed to raise the temperatue of 1.1 kg block of
2 answers
1,119 views
Water, compared to other substances, has one of the highest specific heat values. What is the advantage of this fact for the
1 answer
2,151 views
Write the standard equation of the ellipse:
1. F1 (-4,0) and F2 (4,0), passing through (4,1)
7 answers
3,392 views
1. x-2/3-x>0
2. 3x-1/x+2-1<0 3. 1/x-2+x/x+1>equal to 0 Thank you! :)
1 answer
329 views
Find the solution of the given equations.
x-1/x^2-9+1/x-3=2/x+3 Thank you! :)
1 answer
311 views
A court is to be surrounded by plastic stripping 30m long. One side of the court does not need the stripping because it is a
1 answer
593 views
Find two numbers which have a difference of 7, and a product that is a minimum. Thank you! :)
1 answer
1,428 views
The volume V of gas varies inversely as the pressure P on it. If the volume is 240 cm^3 under pressure of 30 kg/cm^2, what
4 answers
4,435 views
It has been observed that a particular plant's growth is directly proportional to time. It measured 2 cm when it arrived at the
1 answer
1,855 views
