emitted

  1. B

    Im travelling 30m/s I shine a torch in front of me, does the light emitted...

    ...travel at light speed plus 30m/s? or... does the frequency of the light change?? or both
  2. C

    are there dangerous toxins emitted from laser printers?

    i have a laser printer in my room (its a brother hl 2270 DW). I just got it and I use it around once a week, and at times, i print over 500 pages of documents. The printer itself is very efficient, but it emits a lot of air that smells like burnt rubber. Is there a hazard to having the...
  3. C

    Calculate the mass of CO2 emitted into the atmosphere upon accelerating the SUV

    from 0.0 to 67.0 mph? Assume that the required energy comes from the combustion of octane with 30% efficiency. (Hint: Use KE=1/2mv^2 to calculate the kinetic energy required for the acceleration.) A large sport utility vehicle has a mass of 2700g
  4. M

    Was there a focused beam emitted from a round deflector dish on any Star Trek ship?

    I have an image in my mind of a deflector dish, with light moving from the top down both "sides", meeting at the bottom, forming a cone and then a focused beam from the point of the cone. I am NOT talking about the Death Star in Star Wars. If there is one, which ship, which episode of which...
  5. F

    Calculate the mass of CO2 emitted into the atmosphere upon accelerating the SUV

    from 0.0 to 67.0 mph? Assume that the required energy comes from the combustion of octane with 30% efficiency. (Hint: Use KE=1/2mv^2 to calculate the kinetic energy required for the acceleration.) A large sport utility vehicle has a mass of 2400g
  6. F

    Calculate the mass of CO2 emitted into the atmosphere upon accelerating the SUV

    from 0.0 to 67.0 mph? Assume that the required energy comes from the combustion of octane with 30% efficiency. (Hint: Use KE=1/2mv^2 to calculate the kinetic energy required for the acceleration.) A large sport utility vehicle has a mass of 2400g
  7. F

    Calculate the mass of CO2 emitted into the atmosphere upon accelerating the SUV

    from 0.0 to 67.0 mph? Assume that the required energy comes from the combustion of octane with 30% efficiency. (Hint: Use KE=1/2mv^2 to calculate the kinetic energy required for the acceleration.) A large sport utility vehicle has a mass of 2400g
  8. F

    Calculate the mass of CO2 emitted into the atmosphere upon accelerating the SUV

    from 0.0 to 67.0 mph? Assume that the required energy comes from the combustion of octane with 30% efficiency. (Hint: Use KE=1/2mv^2 to calculate the kinetic energy required for the acceleration.) A large sport utility vehicle has a mass of 2400g
  9. T

    An alpha particle (mass 6.6 x 10^-24 g) emitted by radium travel at 3.4

    x10^7 +/- 0.1x10^7 mi/h? (i) what is its de Broglie wavelength (in meters)? (ii) What is the uncertainty in its position?
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