Your radio is tuned to 98 on the FM dial. What electromagnetic wave frequency is your radio receiving, and how fast is this wave traveling?
A) 98 × 106 Hz, at the speed of sound
B) 98,000 Hz, at the speed of sound
C) 98 Hz, at a speed of 300,000 km/s
D) 98,000 Hz, at a speed of 300,000 km/s
E) 98 × 106 Hz, at a speed of 300,000 km/s
E
You might also like to view...
Exhibit 15-1
A dictator has built a bunker for his use in emergencies. Its dimensions are shown below. When it floods to ground level during a tropical storm, air is trapped above the dashed line in the bunker.
?
?
Use this exhibit to answer the following question(s).
Refer to Exhibit 15-1. The absolute pressure at point A, in Pa, is
A. 3.92 × 105. B. 4.90 × 105. C. 5.39 × 105. D. 5.88 × 105. E. 6.89 × 105.
Which two renewable energy resources provide the largest amount of energy today?
A) hydroelectric and wind B) hydroelectric and biomass C) active solar and photovoltaics D) photovoltaics and wind E) biomass and active solar
A 75-N box rests on a perfectly smooth horizontal surface. The minimum force need to start the box moving is
A) 75 N. B) 7.5 N. C) 750 N. D) any horizontal force greater than zero.
How much heat is necessary to change 20 g of ice at –10°C into water at 20°C?