Question

In: Physics

At sunset, sunlight is scattered by the atmosphere. A person looking straight up with the sun...

At sunset, sunlight is scattered by the atmosphere. A person looking straight up with the
sun in their back sees this as the blue sky.
a) Explain in 50 words and/or a figure what the orientation of the electric and magnetic
fields are that enter the eye.
b) Explain in 50 words and/or a figure why the scattered light must have only this
polarization.
c) The Poynting vector here is 2 W/m 2 . What is the amplitude of the magnetic field?

Solutions

Expert Solution


Related Solutions

At sunset, sunlight is scattered by the atmosphere. A person looking straight up with the sun...
At sunset, sunlight is scattered by the atmosphere. A person looking straight up with the sun in their back sees this as the blue sky. [3] a) Explain in 50 words and/or a figure what the orientation of the electric and magnetic fields are that enter the eye. [3] b) Explain in 50 words and/or a figure why the scattered light must have only this polarization. [4] c) The Poynting vector here is 2 W/m 2 . What is the...
a) At sunset, sunlight is scattered by the atmosphere. A person looking straight up sees this...
a) At sunset, sunlight is scattered by the atmosphere. A person looking straight up sees this as the blue sky. Explain in a few words what the orientation of the electric and magnetic fields are that enter the eye. b) Explain in few words why the scattered light must have only this polarization. c)If the Poynting vector for this light is 2 W/m 2 what is the amplitude of the magnetic field.
A rescue helicopter lifts a 81.9-kg person straight up by means of a cable. The person...
A rescue helicopter lifts a 81.9-kg person straight up by means of a cable. The person has an upward acceleration of 0.646 m/s2 and is lifted from rest through a distance of 8.59 m. (a) What is the tension in the cable? How much work is done by (b) the tension in the cable and (c) the person's weight? (d) Use the work-energy theorem and find the final speed of the person. Please include all decimal points in answer! Thank...
A person standing on the edge of a high cliff throws a rock straight up with...
A person standing on the edge of a high cliff throws a rock straight up with an initial velocity of 17.50 m/s. The rock misses the edge of the cliff as it falls back to Earth. What is the position and velocity of the rock at 1.00 s, 3.5 s and 4.0 s after it is thrown, neglecting the effects of air resistance.
At what angle above the horizontal is the sun if sunlight reflected from the surface of a calm lake is completely polarized?
At what angle above the horizontal is the sun if sunlight reflected from the surface of a calm lake is completely polarized?  What is the plane of the electric-field vector in the reflected light? The plane of the electric-field vector in the reflected light is vertical and perpendicular to the plane of the page. The plane of the electric-field vector in the reflected light is horizontal.
The Earth-atmosphere system absorbs energy from the sun and radiates it back into space as black-body...
The Earth-atmosphere system absorbs energy from the sun and radiates it back into space as black-body radiation. (a) Make an estimate for the overall average temperature of the Earth-atmosphere system. You must explain your reasoning in making this estimate. (b) Use you answer in (a) to determine the wavelength of the most plentiful black-body radiation from the system?
A.) A scuba diver, submerged under water, looks up and sees sunlight at an angle of...
A.) A scuba diver, submerged under water, looks up and sees sunlight at an angle of 11.0° from the vertical. At what angle, measured from the vertical, does this sunlight strike the surface of the water? Assume water has a refraction index of 1.333. B.) To focus a camera on objects at different distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto...
Without external cues such as the sun, people attempting to walk in a straight line tend...
Without external cues such as the sun, people attempting to walk in a straight line tend to walk in circles. It has been suggested that this tendency is due to internal asymmetries between individuals, or that individuals' legs differ in length or strength. Souman et al. (2009) tested for differences in individuals' tendencies to change direction by blindfolding 15 participants and asking them to walk in a straight line in an empty field. The numbers in this dataset represent median...
Without external cues such as the sun, people attempting to walk in a straight line tend...
Without external cues such as the sun, people attempting to walk in a straight line tend to walk in circles. It has been suggested that this tendency is due to internal asymmetries between individuals, or that individuals' legs differ in length or strength. Souman et al. (2009) tested for differences in individuals' tendencies to change direction by blindfolding 15 participants and asking them to walk in a straight line in an empty field. The numbers in this dataset represent median...
Radiation from the Sun reaching Earth (just outside the atmosphere) has an intensity of 1400 W/m2....
Radiation from the Sun reaching Earth (just outside the atmosphere) has an intensity of 1400 W/m2. What would the intensity be at Uranus? Assuming that Earth (and its atmosphere) behaves like a flat disk perpendicular to the Sun's rays and that all the incident energy is absorbed, calculate the force on Earth due to radiation pressure. What would it be for Uranus? What is the force on the Earth due to the sun's gravitational attraction? What is it for Uranus?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT