How many MPH do I need to go on my elliptical machine to have it considered a "moderate" workout?

The intensity has nothing to do with the speed of a workout. Intensity is subjective and changes from person to person. The best indicator for intensity is heart rate. The harder you work, the higher the heart rate. Anything under 126 BPM is considered low intensity 125-150 Moderate intensity Above 150 is high intensity For the vast majority, aiming for a heart rate of 140-160 is ideal. Though the higher the heart rate, the harder you are working. the harder you are working, the more calories burned.

How many MPH does a plane go at takeoff?

They are all different and depend on wind speed, temperature and weight of the plane. Here are some specifications for many private jets: http://www.jets.com/private_jets.aspx

What are the survival rates for a 75 mph head-on car crash?

Depends on being head on with what. Under test situations many car accidents where it hits a solid wall at 75mph have some survivability. See the link below for a video of something similar. So being head on with another car travelling at 75mph is a closing speed of 150mph unlike the video at 75mph. I doubt that would be survivable.

How do I get MPH from the circumference and the RPM of the motor?

if i'm wrong let me know but, you wont be able to get that from that info.

How do I find mph if my time is in seconds?

D = distance in feet T = time in seconds S = speed in miles per hour S = (D/5280)/(T/3600) = (D/T)*(3600/5280) = (15/22)D/T You can use this formula in a spreadsheet to generate a table with the ranges of times and distances of interest to you. For instance, in Excel, a formula like =15/22*$B3/C$2 can be used to generate a table like 1 2 3 4 5 6 7 ------------------------------------------------------------- 1 0.682 0.341 0.227 0.170 0.136 0.114 0.097 2 1.364 0.682 0.455 0.341 0.273 0.227 0.195 3 2.045 1.023 0.682 0.511 0.409 0.341 0.292 4 2.727 1.364 0.909 0.682 0.545 0.455 0.390 5 3.409 1.705 1.136 0.852 0.682 0.568 0.487 6 4.091 2.045 1.364 1.023 0.818 0.682 0.584 7 4.773 2.386 1.591 1.193 0.955 0.795 0.682 8 5.455 2.727 1.818 1.364 1.091 0.909 0.779 9 6.136 3.068 2.045 1.534 1.227 1.023 0.877 10 6.818 3.409 2.273 1.705 1.364 1.136 0.974 11 7.500 3.750 2.500 1.875 1.500 1.250 1.071 12 8.182 4.091 2.727 2.045 1.636 1.364 1.169 13 8.864 4.432 2.955 2.216 1.773 1.477 1.266 14 9.545 4.773 3.182 2.386 1.909 1.591 1.364 15 10.227 5.114 3.409 2.557 2.045 1.705 1.461 16 10.909 5.455 3.636 2.727 2.182 1.818 1.558 where the numbers across the top are seconds and the numbers at the left are feet. Going 11 feet in 3 seconds comes out to 2.5 miles per hour.

What heading and airspeed are required to fly 340 mph due south if a wind of 50 mph is blowing from 30 degrees?

poorly framed question, as any pilot will tell you there is no direct correlation between wind speed and lateral progress it is approximate and will have more effect on a light aircraft than a heavy passenger jet, who thinks up these questions?

What is the likelihood of observing a vehicle traveling 80 mph or more?

Assuming we are not talking about Illinois drivers; the average is 63 MPH with a 15 MPH deviation? That's a range from 78 to 48 MPH. If all drivers stayed within the standard deviation of 15 MPH your odds of seeing a vehicle going greater than 80 or less than 45 MPH are zero! In real life (and my personal driving experience) we know this isn't the case as I've seen dozens of drivers doing 80+MPH. Statistically speaking though, I'd say less than (<) 1%.

How can an MPH help me practice better medicine as a physician?

Your credentials won't determine your ultimate career path, you will. And your MD will carry more weight than whichever Masters you decide to pursue. Have to you looked into the National Health Service Corps? http://nhsc.bhpr.hrsa.gov/

How many mph will a suzuki quadzilla go with a hole new exhaust and muffler system?

Top speed, no. Get there quicker, yes. To get more top speed, you must change the gearing.

Mph......?

drink green tea. NO LIE GIRL!!