A blue star has a higher surface temperature than a red star

Indicate whether the statement is true or false


TRUE

Physics & Space Science

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Propene and cyclopropane are

a. the same compound. b. isomers. c. neither isomers nor the same compound.

Physics & Space Science

For a body emitting blackbody radiation, the total power emitted is proportional to the 4th power of the body's absolute temperature: (T in kelvins) and the wavelength of the emitted EM radiation that has the highest intensity is inversely proportional to the body's absolute temperature according to: ( in meters, T in kelvins) Assume an object is emitting blackbody radiation. A body in a room at

300 K is heated to 3,000 K. The wavelength of the most intense EM radiation emitted by the body at 3,000 K is the wavelength of the most intense EM radiation at 300 K. a. 0.0001 times b. 0.1 times c. the same as d. 10 times e. 10,000 times

Physics & Space Science

Compared to noise, musical sounds have

A) periodic tones. B) musical notes. C) both of these D) neither of these

Physics & Space Science

Two point charges of + 20.0 ?C and - 8.00 ?C are separated by a distance of 20.0 cm. What is the intensity of electric field E midway between these two charges?

A) 25.2 × 106 N/C directed towards the negative charge B) 25.2 × 106 N/C directed towards the positive charge C) 25.2 × 105 N/C directed towards the negative charge D) 25.2 × 105 N/C directed towards the positive charge E) 25.2 × 104 N/C directed towards the negative charge

Physics & Space Science