physics

The average speed of an orbiting space shuttle is 20100 mi/h. The shuttle is orbiting about 196 mi above the Earth’s surface. Assume the Earth’s radius is 3963 mi.

How long does it take to circle the Earth? Answer in units of h ( hours)

  1. 👍 0
  2. 👎 0
  3. 👁 230
  1. I am not providing further assistance unless you show work. Start by calculating the circumference of the orbit.

    1. 👍 0
    2. 👎 0
  2. Time = orbit circumference divided by speed.

    It might be of some interest to you is the fact that a spacecraft's orbital speed at 196 miles altitude is
    V = sqrt[1.407974x10^16/(3963+196)(5280)] = 25,321fps = 17,265mph.

    1. 👍 0
    2. 👎 0
  3. So would I take the answer from the formula for a circumference of a circle(24900.26337) and divide it by 17,265 to get 1.442239408(~1.44h)?

    How I got the circumference: 2 x pi x 3963=24900.26337

    1. 👍 0
    2. 👎 0
  4. Yes, that is correct, but I would verify the units. radius is in miles, so circumference is in miles, speed is in miles per hour, so time is in hours.

  5. I tried 1.44 h, but I got the answer wrong. Can you please tell me what I may be doing incorrectly with the significant figures? thanks

    1. 👍 0
    2. 👎 0
  6. 78

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    The De-orbit Burn The Shuttle must reduce its velocity at a pre-calculated point in its orbit in order to return to Earth. In order to reduce the velocity and change the orbit of the Shuttle, a maneuver called the de-orbit burn is

    asked by Rory on December 28, 2011
  2. Physics

    You are explaining why astronauts feel weightless while orbiting in the space shuttle. Your friends respond that they thought gravity was just a lot weaker up there. Convince them and yourself that it isn't so by calculating the

    asked by Dan on July 8, 2012
  3. Physics

    A 97kg astronaut and a 1100kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.13m/s directly away from the shuttle. Seven and a half seconds later the astronaut

    asked by Arr-chan on May 27, 2014
  4. trig

    A space shuttle 200 miles above the earth is orbiting the. Earth once every 6 hours. how far does the shuttle travel in one hour? Note the radius of earth about 4000 miles.

    asked by Ali on September 17, 2011
  1. physics

    The space shuttle has a mass of 2.0 × 106 kg. At lift-off the engines generate an upward force of 30 × 106 N. a. What is the weight of the shuttle? b. What is the acceleration of the shuttle when launched? c. The average

    asked by Anonymous on August 17, 2011
  2. physics

    One hazard of space travel is debris left by previous missions. There are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint.

    asked by mathew on October 1, 2014
  3. Velocity and Displacement

    The Space Shuttle travels at a speed of about 7.60 103 m/s. The blink of an astronaut's eye lasts about 120 ms. How many football fields (length = 91.4 m) does the Shuttle cover in the blink of an eye?

    asked by Fainah on September 1, 2011
  4. calculus (gr 12)

    The forward motion of a space shuttle, t seconds after touchdown, is described by s(t) = 189t − t^3 , where " is measured in metres. a) What is the velocity of the shuttle at touchdown? b) How much time is required for the

    asked by PLEASE HELP ME! on April 19, 2013
  1. Physics

    Which of the following exhibits parabolic motion? a. a stone thrown into a lake b. a space shuttle orbiting Earth c. a leaf falling from a tree d. a train moving along a flat track what is parabolic motion? which would be a good

    asked by y912f on February 5, 2009
  2. related rates

    After blast-off, a space shuttle climbs vertically and a radar-tracking dish, located 1000 meters from the launch pad, follows the shuttle. How fast is the radar dish revolving 10 sec after blast-off if at that time the velocity

    asked by :) on May 20, 2012
  3. Math 8th Grade Please help

    The radius of Earth is 6,371 kilometers. A space shuttle orbits 315 kilometers above the surface of Earth. The space shuttle completes 240° of a revolution around Earth in one hour. What is the average speed of the space shuttle?

    asked by Chris on December 5, 2012
  4. Science

    During a space shuttle landing, a parachute deploys from the back of the shuttle as it taxis down the runway. In addition to the speed brake, the parachute helps the shuttle come to a complete stop. How does the parachute help

    asked by Connie on May 18, 2015

You can view more similar questions or ask a new question.