Chemistry

posted by .

If the distance from the Earth to the moon is 3.84 x 105 km. How long would it take a radio wave with wavelength 413.8 m to travel from Earth to the moon?

C=(lanbda)v & E=(h)v

  • Chemistry -

    You don't need either of these equations.
    The speed of the radio wave is 3E8 m/s. You have a distance of 3.85E8 meters (note I converted from km to m).
    distance = rate x time.
    You have distance, you have rate (3E8 m/s), solve for time in seconds.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    The distance between earth and the moon can be determined from the time it takes for a laser beam to travel from earth to a reflector on the moon and back. If the round-trip time can be measured to an accuracy of 0.19 of a nanosecond …
  2. Physics please help!

    The distance between earth and the moon can be determined from the time it takes for a laser beam to travel from earth to a reflector on the moon and back. If the round-trip time can be measured to an accuracy of 0.19 of a nanosecond …
  3. Physics

    Consider a spaceship located on the Earth-Moon center line (i.e. a line that intersects the centers of both bodies) such that, at that point, the tugs on the spaceship from each celestial body exactly cancel, leaving the craft literally …
  4. physic

    How long will a radio wave, with a wave length of 200 m takes to travel to and for the moon from the earth?
  5. physics

    Help me with this problem i do not get it?
  6. science

    The pull of gravity keeps the Moon in orbit around Earth. The distance between the Earth and Moon is about 380,000 kilometers. A crew of astronauts leaves Earth on a Monday and lands on the Moon on a Thursday. They land on the side …
  7. science

    How long would it take a radio wave with a frequency of 5.1 × 105 Hz to travel from Mars to Earth if the distance between the two planets is approximately 8.00 × 107 km?
  8. Calculus Physics

    Imagine a spaceship on its way to the moon from the earth. Find the point, as measured from the center of the earth, where the force of gravity due to the earth is balanced exactly by the gravity of the moon. This point lies on a line …
  9. Physics

    Many astronomers argue that the Earth and Moon should be considered a double planet,since the gravitational force by the sun on the Moon is approximately as big as that by the Earth on the moon.Using the data below for the Earth and …
  10. Moon Science

    What causes the phases of the moon as observed from the Earth?

More Similar Questions