Scott

Questions

Newest questions posted by Scott
  1. Chemistry

    If 25.0 g S8 (molar mass = 256.56 g/mol) is made to react with 2.0 L O2 at 25 oC and 1.0 atm, what is the maximum amount (in grams) of SO3 produced?
  2. Math

    Solve? 5 sqrt 2^3x * 64^2x+2 =32768^x
  3. Math

    1. A car is worth $23000 in Jan 2017 in the first year the car depreciates by 15 percent per annum and then 7 percent every year after that. a) what will the car be worth in Jan 2023? b) when will the car be worth $5000? 2. In 2017 the population of a
  4. Math

    1. Iodine-131 is used to find leaks in water pipes it has a half life of 8.14 days. If 36 days have passed and there is now 2.34g left. What is the initial amount? 2. Sr-85 is used in bone scans and has a half life of 64.9 days. If there is 23 percent of
  5. Chemistry

    If a gas effuses 1.618 times faster than Kr (molar mass = 83.8 g/mol) what is the molar mass of the gas?

Responses

Newest responses posted by Scott
  1. Physics

    so an 8 kg pendulum bob has been created momentum is conserved ... so the momentum of the bob equals the momentum of the missle ... this gives the immediate velocity of the bob the centripetal force necessary (to keep the bob moving in a circle) is ... m
  2. Physics

    the surface area of the sphere is ... π d^2 a cubic meter of water has a mass of 1000 kg (a metric ton) ... 11,000 m^3 of water has a mass of ... 1.1E7 kg the force of the water (pressure) is ... 1.1E7 * g Newtons/m^2 ... multiply by the surface area to
  3. Math 7th grade

    sounds like they want a table of widths and lengths W = 1 ... L = 20 W = 2 ... L = 10 just make a table
  4. Math 7th grade

    rate = distance / time = (44 / 5 mi) / (4 / 3 hr) = 33 / 5 = 6.6 mph time = distance / rate to find the time for any distance , just divide by 6.6 mph
  5. Science

    there is no decimal point , so the "4" is the only significant digit non-zero digits are significant zeroes are significant in some cases ... between non-zero digits ... 2001 , 4 sig fig ... trailing zeroes with a decimal point ... 400 , 1 sig