30 kg m/s
momentum = mass x velocity = 10 x 3 m/s =30 kg m/s
D) burning magnesium ribbon, as combustion is a chemical reaction so causes chemical change. The other 3 options do not involve reactions so there isn't a chemical change.
My calculations say it'll take 600 hours???
Answer:
The change in temperature of a coffee cup calorimeter is 8.87°C.
Explanation:
Volume of the water = V = 150 g
Density of the water , d =1.0 g/mL
Mass of the water = M

Mass of solution = m = M = 150.0 g

Moles of NaOH = 
Energy released when 0.125 moles of NaOH added in water = Q

1 kJ = 1000 J
Heat gained by water = Q' = -Q ( conservation of energy)

Specific heat of solution = c = 4.184 J/g°C
Change in temperature of the solution = 



The change in temperature of a coffee cup calorimeter is 8.87°C.