An intrinsically very bright star might appear faint if it is far away
Indicate whether the statement is true or false
True
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A 2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kN. What is the frequency of the fundamental mode?
A) 204 Hz B) 102 Hz C) 408 Hz D) 510 Hz E) 153 Hz
Collisions in Two Dimensions: A 900-kg car traveling east at 15.0 m/s suddenly collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together after the collision. What is the speed of the wreckage just after the collision?
A. 6.10 m/s B. 12.2 m/s C. 25.0 m/s D. 35.0 m/s E. 17.3 m/s
Carbon dioxide forms into a solid (dry ice) at approximately ?157°F. What temperature in degrees Celsius does this correspond to?
a. ?157°C b. ?93°C c. ?121°C d. ?105°C
Another name for the leeward slope is
A) upslope. B) downslope. C) rain shadow. D) downslope and/or rain shadow.