If we were to set 80 % of the mass of the photon rocket

If a photon rocket begins its journey in low earth orbit, then one year of thrusting may be required to achieve an earth escape velocity of 11. 2 km / s if the vehicle is already in orbit at a velocity of 9, 100 m / s, and 400 m / s additional velocity is obtained from the east to west rotation of the earth.

If the rocket or aircraft is moving at about a constant speed, then distance divided by time is just speed, so power is thrust times speed:

If a rocket is launched to deliver a payload from a planetary surface into space it is called a launch vehicle.

After being chosen to be the first teacher in space, McAuliffe was a guest on several television programs, including Good Morning America ; the CBS Morning News ; the Today Show ; and The Tonight Show Starring Johnny Carson, where, when asked about the mission, she stated, " If you ’ re offered a seat on a rocket ship, don ’ t ask what seat.

If done by direct propulsion, the rocket equation dictates that a large fraction of the spacecraft mass must be fuel.

If even more speed is needed than available from gravity assist alone, the most economical way to utilize a rocket burn is to do it near the periapsis ( closest approach ).

If the rocket does not launch within the " window ", it has to wait for the next window.

If the manoeuvre from GTO to GEO is to be performed with a single impulse, as with a single solid rocket motor, apogee must occur at an equatorial crossing.

If all went well the rocket would reroute the fuel for this engine to the other engines and have the rocket burn longer to compensate for the loss of acceleration.

If the cycle happens to match a resonance frequency of the rocket then dangerous oscillations can occur through positive feedback, which can in extreme cases tear the vehicle apart.

If the rocket is never lit then SpaceShipOne can glide down to the ground.

If aerodynamic drag and transient changes in pressure are neglected, a closed-form approximation for the peak height of a rocket fired vertically can be expressed as follows:

If the centre of mass is placed forward of the fins, the rocket will nose dive.

If the force is too much, no metal will hold it and the ship will blow up, so imposing a strict limit on how fast a rocket can accelerate ) and people using oxygen pills to survive unprotected in the vacuum of space ( which would suck their blood out through their skin and the air from their lungs as well as popping their eyes ), Space Patrol was better up on science.

If the rocket failed during the first phases of the flight, the Emergency Detection System ( EDS ) would automatically give the command to abort.

* Pad abort: If the rocket failed in the last five minutes before launch, the CM and the launch escape system ( LES, see figure ) would separate from the remainder of the rocket below with the LES propelling itself and the CM beneath it upward and eastward to the sea using a small solid-fuelled engine ( the pitch control motor ) at the top of the tower on the launch escape system.

If he does not contact them by that time, then they can launch the rocket.

If a stable or circular orbit is needed, once the payload reaches the highest part of its trajectory then an on-board rocket engine (" kick motor ") or other means is needed to circularize the trajectory to the appropriate Earth orbit.

If any of the worldlines bends away from a geodesic path in some region, we can think of the observers as test particles that accelerate by using ideal rocket engines with a thrust equal to the magnitude of their acceleration vector.

If the hand value exceeds 21 points, it busts, and all bets on it are immediately forfeit.

If the ambient temperature exceeds T < sub > m </ sub >, the homologous pairing of the sticky ends would not be stable because the high temperature disrupts hydrogen bonding.

If the minibus exceeds 100 km / h, the beeping will turn into a sustained tone.

If the quantity of powder stored for personal use exceeds 75 kg, then a Propellant Magazine Licence ( Type P ) is required.

If the number of tricks exceeds the number of players, players who bid nil ( zero ) score 20 if they take no tricks, otherwise-10.

If the number of dies — the integrated circuits that will eventually become chips — etched on a wafer exceeds a failure threshold ( i. e. too many failed dies on one wafer ), the wafer is scrapped rather than investing in further processing.

If the mass of the core exceeds the Chandrasekhar limit, electron degeneracy pressure will be unable to support its weight against the force of gravity, and the core will undergo sudden, catastrophic collapse to form a neutron star or ( in the case of cores that exceed the Tolman-Oppenheimer-Volkoff limit ), a black hole.

If made very pure, tungsten retains its hardness ( which exceeds that of many steels ), and becomes malleable enough that it can be worked easily.

If the demand for power exceeds the supply, generation plants and transmission equipment can shut down which, in the worst cases, can lead to a major regional blackout, such as occurred in the US Northeast blackouts of 1965, 1977, 2003, and in 1996 and 2011.

If the sender does not receive an acknowledgment before the timeout, it usually re-transmits the frame / packet until the sender receives an acknowledgment or exceeds a predefined number of re-transmissions.

If the clearance from the nearest anticipated path position, over the expected range of Earth radius k-factor, exceeds 0. 6 of the first Fresnel zone radius, the feature is not normally considered an obstruction.

If the pressure exceeds design limits, the plug pops out to depressurize the pot.

If actual spending for a given year exceeds the spending target for that year, reimbursement rates are adjusted downward by decreasing the Conversion Factor ( CF ) for RBRVS RVUs.

If the energy absorbed exceeds this potential, then the electron is emitted as a free electron.

Recently, it has been suggested that patients be screened for iron overload using serum ferritin as a marker: If serum ferritin exceeds 1000 ng / mL, iron overload is very likely the cause.

If liability exceeds assets, negative equity exists.

If a population exceeds the size outlined by its cognitive limitations, the group undergoes a schism.

If their combined mass exceeds the Oppenheimer-Volkoff limit then the two will collapse into a black hole, resulting in a supernova that disperses the outer layers of the star.

If the thermal resistance of the fluid / sphere interface exceeds that thermal resistance offered by the interior of the metal sphere, the Biot number will be less than one.

If the number of errors within a code word exceeds the error-correcting code's capability, it fails to recover the original code word.

If the pressure exceeds the limit of the safety valve, water in the form of gas is lost.

If the POSITIVE balance exceeds the agreed terms, then additional fees may be charged and higher interest rates may apply.

If a train crew's route, or tour of duty, exceeds a single shift, or is in conflict with any rules pertaining to a legal or contractual limit to the number of hours that can be worked, more than one crew may be assigned, each with its own conductor, while onboard service crew members aboard passenger trains normally remain on duty for the entire run, including their assigned meal and sleep breaks.

If the torque applied to one of the drive wheels exceeds the threshold of traction, then that wheel will spin, and thus only provide torque at each other driven wheel limited by the sliding friction at the slipping wheel.

If the luminosity exceeds the Eddington limit, then the radiation pressure drives an outflow.