The refractive power of a lens used as a magnifying glass is negative

Indicate whether the statement is true or false

FALSE

Physics & Space Science

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Granulation is caused by

a. sunspots. b. rising and sink gases below the photosphere. c. shock waves in the corona. d. the solar wind flowing away from the corona. e. the heating in the chromosphere.

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Physics & Space Science

The consumption of natural gas by a company satisfies The empirical equation V= 1.50t +0.008 00t^2, where V is the volume of gas in millions of cubic feet and t is the time in months. Express this equation in units of cubic feet and seconds. Assume a month is 30.0 days.

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Physics & Space Science

The BCS theory of superconductivity details the working of a superconductor. Choose the statement below that describes one of its characteristics

a. Single electrons are responsible for establishing currents in the superconductor. b. Currents flow without resistance until the lattice begins to vibrate. c. The repulsion of electrons in pairs is significantly reduced by the extremely low temperatures of superconductor operation, making electron pairing possible. d. A pair of electrons becomes like a boson and transitions to a ground state with other electron pairs.

e. The resistance decreases in proportion to the lattice vibrations, which in turn decrease with decreasing temperature.

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Physics & Space Science

Suppose one observes cosmic rays creating a new particle high in the atmosphere and the particle moves at 99.7% the speed of light. It is observed to decay in an average 37.0 ?s. What is the proper lifetime of the particle?

A) 2.86 ?s B) 4.33 ?s C) 18.1 ?s D) 12.4 ?s E) 5.33 ms

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Physics & Space Science