The Surface Weather map presents data and analysis for what time of day?


The Surface Weather Map presents data and analysis for 7 A.M. EST.

Physics & Space Science

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____________________ made very accurate observations of the positions and movements of the planets that were later used to help develop the Rudolphine Tables

Fill in the blank(s) with correct word

Physics & Space Science

You have measured Doppler shifts to plot velocity curves for two otherwise identical stars. Star A has a period of 6 months and Star B has a period of 1 year. What can you say about the planets causing the motions of these stars?

A) Star A's planet is more massive than Star B's planet. B) Star A's planet must orbit closer in than Star B's planet. C) It is impossible to say anything about the planets orbiting these stars. D) Star B must have a planet like Earth.

Physics & Space Science

A wheel (radius = 0.20 m) starts from rest and rotates with a constant angular acceleration of 2.0 rad/s2 . At the instant when the angular velocity is equal to 1.2 rad/s, what is the magnitude of the total linear acceleration of a point on the rim of the wheel?

a. 0.40 m/s2 b. 0.29 m/s2 c. 0.69 m/s2 d. 0.49 m/s2 e. 0.35 m/s2

Physics & Space Science

Brewster's Angle: A ray of light traveling in water hits a glass surface. The index of refraction of the water is 1.33, and that of the glass is 1.50. At what angle with the plane of the surface must the incident ray strike the glass in order that the polarization of the reflected ray is the greatest?

A. 36.9° B. 33.7° C. 41.6° D. 48.4° E. 53.1°

Physics & Space Science