Neptune's blue-green color is caused by _______________ in its hydrogen-rich atmosphere absorbing red light
Fill in the blank(s) with correct word
methane
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A cylinder with its mass concentrated toward the center has a moment of inertia of 0.2MR2 . If this cylinder is rolling without slipping along a level surface with a linear speed v, what is the ratio of its rotational kinetic energy to its linear kinetic energy?
a. 1/l0 b. 1/5 c. 1/2 d. 1/1
About 1350 W/m2 of electromagnetic energy reaches the upper atmosphere of the earth from the sun, which is 1.5 × 1011 m away
Use this information to estimate the average power output of the sun. A) 1 × 1026 W B) 2 × 1026 W C) 3 × 1026 W D) 4 × 1026 W
A straight wire is carrying a current of 2.0 A. It is placed at an angle of 60° with respect to a magnetic field of strength 0.20 T. If the wire experiences a force of 0.40 N, what is the length of the wire?
A) 1.0 m B) 1.2 m C) 1.4 m D) 1.6 m E) 1.8 m
Northern hemisphere winters are colder than northern hemisphere summers because
a. Earth is closer to the Sun during the summer than it is during the winter. b. the snow that falls in the northern latitudes cools Earth during the winter. c. the light from the Sun shines more directly on the northern hemisphere during the summer. d. the period of sunlight is longer during the summer than during the winter. e. the light from the Sun shines more directly on the northern hemisphere during the summer and the period of sunlight is longer during the summer than during the winter.