how many grams of water at 20 degrees celcius are necessary to change 800.0g of water at 90.0 degrees celsius to 50.0 degrees celcius?
tn = (-1)n(n) A. -1, -2, -3, -4 B. -1, 2, -3, 4 C. 1, ½, 2/3, ¾ D. 1, 2, 3, 4
Jane needs $30,000 to buy another new car in eight years. How much should she deposit at the end of each half year into an account that earns 4% interest compunded semianually?
just let me know what ones are wrong if any. please and thank you.
1. The natural vegetation regions of sub-Saharan Africa A. are heavily impacted by human activity. B. don't correspond closely to climatic regions. C. only correspond to climatic conditions in areas of West Africa. D. are all characteristic of equatorial latitudes. 2. Acc...
1.d 2.c 3.b 4.d 5.b 6.a 7.b 8.c 9.b 10.a 11.c 12.d 13.d 14.d 15.c 16.a 17.b 18.a 19.b 20.c
Latin America and North America 1. The _______ were responsible for the forced migration of more people from Africa than any other colonial power. A. Portuguese B. Dutch C. Spanish D. British 2. Regarding tropical rainforests, the term evapotranspiration refers to the fact tha...
Aaron (mass 60 kg) catches his running cat (mass 5 kg) moving horizontally at 1.5 m/s. What is the speed of Aaron and his cat after the catch?
The spring of the pressure gauge shown in the figure below has a force constant of 1,080 N/m, and the piston has a radius of 1.43 cm. As the gauge is lowered into water, what change in depth causes the piston to move in by 0.750 cm?
If you can do just one for me I can used it as a template to do the rest. Thank you in advance For each reaction, calculate the mass (in grams) of the product formed when 10.3 of the underlined reactant completely reacts. Assume that there is more than enough of the other reac...