Physics, 04.10.2019 21:30 acalvario2019
When the sun is directly overhead, the thermal energy incident upon the earth is about 1.4 x 106 ergs- cm-2-sec-1. the diameter of the sun is about 1.6x 1011cm, and the distance from the sun to the earth is about 1.3 x 1013cm. assuming the that the sun radiates like a black body, use the expression to estimate its surface temperature.
Answers: 2
Physics, 21.06.2019 22:30
A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.
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Physics, 22.06.2019 15:00
A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?
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Physics, 23.06.2019 03:20
When a pendulum is held high and taut and then is released, the pendulum begins to swing. what’s the correct order of the energy transformations in this example? (pe stands for potential energy.)
Answers: 2
When the sun is directly overhead, the thermal energy incident upon the earth is about 1.4 x 106 erg...
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