What is the speed of a periodic wave that has a frequency of 3.50 hz and a wavelength of 0.700 m? a. 2.54 m/s c. 4.25 m/s b. 2.45 m/s d. 5.24 m/s

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.

The law of reflection states that the angle of reflection is equal to the angle of