seanmarch58

Most popular questions and responses by seanmarch58
  1. Physics 2

    Explain briefly the workings of electrical transformer, both step-up and step-down In a step-up transformer, compare the secondary voltage and current to the corresponding primary values. Explain briefly how transformers minimize losses in long distance

    asked on July 28, 2014
  2. Physics 2

    List and explain briefly five magnetic devices found in the popular culture Are stationary charges affected be a magnetic field? What determines the direction of the magnetic force on a moving charge? What is the cause of all magnetic fields?

    asked on July 28, 2014
  3. Physics 2

    An AM radio station has a wavelength of 300 m. find this station’s frequency?

    asked on July 27, 2014
  4. Physics 2

    1.) The microwave protion of the spectrum has wavelengths ranging from 1 mm to 1 m. find the corresponding frequency? 2.) An AM radio station has a wavelength of 300 m. find this station’s frequency? 3.) A) Canadian FM radio station (CLAW) broadcasts

    asked on July 27, 2014
  5. Physics 2

    A 42 mT magnetic field points due west. If a proton of kinetic energy 9x10E-12 J enters this field in an upward direction, find the magnetic force acting on the proton in magnitude and direction.

    asked on July 28, 2014
  6. physics

    A 42 mT magnetic field points due west. If a proton of kinetic energy 9x10E-12 J enters this field in an upward direction, find the magnetic force acting on the proton in magnitude and direction. What magnetic force would an electron experience due to

    asked on July 27, 2014
  7. College Physics 2

    A) Canadian FM radio station (CLAW) broadcasts lobster information at 95.9 MHz. find the wavelength of this station. (B) What would be the frequency of a station for which the carrier wave was 400 m long?

    asked on July 28, 2014
  8. Physics 2

    In order of increasing frequency, list the waves that make up the electromagnetic spectrum and give an example of each type of wave. Explain how Snell’s law describes refraction.

    asked on July 28, 2014
  9. Physics 2

    State Lenz’s law and explain Briefly explain the operation of an electric generator

    asked on July 28, 2014
  10. Physics 2

    A 60 cm long wire is oriented from east to west directly above the equator and carries a current of 5 A (toward the east). What is the magnitude and direction of the magnetic force on this wire due to the earth’s magnetic field (30 µT oriented south and

    asked on July 28, 2014
  11. physics

    The function of those little black transformers that clog your power strips is to step down line voltage to run small electronic gadgets. Suppose a fax machine uses an ideal transformer with a primary voltage of 120 V and primary windings. If the secondary

    asked on July 27, 2014
  12. College Physics 2.. HELP

    A 6 cm high object is placed 43ncm from a converging lens of focal length 24 cm. Find the image’s position and draw a ray diagram approximately to scale.

    asked on August 2, 2014
  13. College Physics 2

    An unstable particle called Bullroarium has a lifetime of 6x10E-10 seconds, measured at rest. If a Bullroariom particle zips past a stationary observer at 0.67c , find the stationary observer’s measurements for A.) Bullroarium lifetime as measured by the

    asked on August 2, 2014
  14. Physics 2

    the microwave protion of the spectrum has wavelengths ranging from 1 mm to 1 m. find the corresponding frequency?

    asked on July 27, 2014
  15. Physics 2

    A) Canadian FM radio station (CLAW) broadcasts lobster information at 95.9 MHz. find the wavelength of this station. (B) What would be the frequency of a station for which the carrier wave was 400 m long?

    asked on July 27, 2014
  16. College Physics 2

    A broken-down spaceship (star Wreck?) flies across an international soccer field (Regulation length = 100 m) at a speed of 0.55c. A.) How long does the spaceship pilot measure the field to be? B.) From the spaceship pilot’s perspective, how long does it

    asked on August 2, 2014
  17. College Physics 2

    Find the resonant frequency of a circuit that has a 400 mH inductor and a 30 nF capacitor connected in series. A) Canadian FM radio station (CLAW) broadcasts lobster information at 95.9 MHz. find the wavelength of this station. B) What would be the

    asked on July 30, 2014
  18. Physics 2

    what magnetic force would an electron experience due to Earth’s magnetic field if it were moving at 3x10E6 m/s directly away from earth’s surface? (Earth’s B-field in the region is parallel to the surface and has a strength of 550 µT)

    asked on July 28, 2014
  19. Physics 2

    if the average speed of light in a medium is 2.2x10E8 m/s, what is the medium’s index of refraction?

    asked on July 27, 2014
  20. College Physics 2

    the Apollo 10 spacecraft traveled at 11 km/s just prior o its re-entry, setting a speed record for humans. Suppose advanced technology raises the speed record by a factor of 100, to 1100 km/s. if a time travel of 1 hour elapsed on a ground-based clock, by

    asked on August 2, 2014
  21. Physics 2

    A 6 cm high object is placed 43ncm from a converging lens of focal length 24 cm. Find the image’s position and draw a ray diagram approximately to scale.

    asked on July 27, 2014