Pulsars are created in a Type I supernova
Indicate whether the statement is true or false
FALSE
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In a certain gas the molecules are 5.0 × 10?9 m apart on average, have a mean free path of 5.0×10?6 m, and have an average speed of 500 m/s. The rate at which a molecule has collisions with other molecules is about:
A. 10?11 s?1 B. 10?8 s?1 C. 1 s?1 D. 10^8 s?1 E. 10^11 s?1
When we apply the Lorentz factor ? to momentum, we
A) multiply by ? as with the equation for time dilation. B) multiply by the reciprocal of ?. C) find it does not apply.
A beaker is filled to the 500 ml mark with alcohol. What increase in volume (in ml) does the beaker contain when the temperature changes from 5° C to 30° C? (Neglect the expansion of the beaker, evaporation of alcohol and absorption of water vapor by alcohol.) balcohol = 1.12 × 10^-4/°C
a. 0.47 b. 0.93 c. 1.4 d. 1.7 e. 2.5
A space station in the form of a large wheel, 120 m in diameter, rotates to provide an "artificial gravity" of 3.00 m/s2 for persons located at the outer rim. Find the rotational frequency of the wheel (in revolutions per minute) that will produce this effect.
What will be an ideal response?