How much horsepower would a car need to tow a boat up the Davis
Dam Grade Climb?
Pro Tips
Davis Dam assumed grade = 7%
Air density is sea level conditions (.002377 slugs/f^t3)
w(weight) of the boat + trailer + car = 3,922,000 + 150,000 +
4451 Lbs
Crr = coefficient of rolling resistance = .015
Assume Combined CDA is 1555 ft^2
SAE J2807 (Davis Dam Grande Climb) - min speed is 40mpg (59
ft/s)
F(drag) = 1/2p x V^2...
How much horsepower is needed, in a vehicle described below, to
travel a distance of 1 statute mile in 35 seconds, from a standing
start, with the following information:
Air density @ sea level, 59 degrees, no wind = p = .002377
slugs/ft^3
Coefficient of drag (flat plate, NASA) = C(d) = 1.28
Weight = W = 4451 lbs
Area = A = 197.5" long x 78.2" wide x (1 ft^2/ 144 in^2) ( Size
of vehicle)
How much horsepower would a Challenger SRT® Hellcat Redeye
Widebody need to tow the SS Delphine up the industry standard:
Davis Dam Grade Climb? Pro Tips Davis Dam assumed grade = 7% Air
density is sea level conditions (.002377 slugs/f^t3) w(weight) of
the SS Delphine + trailer + Redeye = 3,922,000 + 150,000 + 4451 Lbs
Crr = coefficient of rolling resistance = .015 Assume Combined CDA
is 1555 ft^2 SAE J2807 (Davis Dam Grande Climb) - min speed is...
Would the speed of sound in a monatomic gas like helium be the
same as it would be in air (primarily a diatomic gas)? Why? Assume
that both gases have the same density and exist at the same
pressure.
Yes. If the pressure and density of both gases are the same,
then the speed of sound must be the same.
No. The energy that goes into molecular bonds in the diatomic
gas makes the effective spring constant of the gas...
How much time, on average, would a server need to spend on a
customer to achieve a service rate of 8 customers per hour? (Round
your answer to 2 decimal places.)
How much time on average would a server need to spend on a
customer to achieve a service rate of 30 customers per hour? (round
answer to 2 decimal places)
If collected when products are sold, how much would the fee need
to be to pay for end-of-life recycling, if your state can invest
this fee at an interest rate of 3.5%? If collected at end-of-life,
the fee would be the direct cost to recycle.
Assume that consumers keep devices on the following schedule:
Cell phones, tablets, small laptops (screen size: 4”-15”): 2 years,
costs $3.50 on average to recycle
Large laptops, desktop monitors, small TVs (screen size: 15”-35”):
3...
How much would you need to gift to the university today to
establish a scholarship fund that pays out $10000 in scholarships
in one year and grows the scholarship payout by 1% per year? Assume
that the university endowment earns 8% per year on its
investments.