If an ideal gas molecule has a speed of 0.50 km/s at 20°C, what is its speed at 80°C?
A) 500 m/s B) 2000 m/s C) 550 m/s D) 1000 m/s
C
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_________is a composite with a matrix of bitumen and particles of aggregate.
Fill in the blank(s) with the appropriate word(s).
Series/Parallel Circuits: Four resistors are connected across an ideal dc battery with voltage V, as shown in the figure. If the total current in this circuit is I = 1 A, what is the value of the voltage V?
A. 2 V B. 4 V C. 6 V D. 8 V E. 10 V
A helicopter is flying horizontally with a speed of 444 m/s over a hill that slopes upward with a 2% grade (that is, the "rise" is 2% of the "run")
What is the component of the helicopter's velocity perpendicular to the sloping surface of the hill? A) 8.9 m/s B) 220 m/s C) 435 m/s D) 444 m/s
A heater is rated at 1200 watts for a 120-volt source.The current drawn by the heater is 10 amperes
a. True b. False Indicate whether the statement is true or false