What weather condition(s) cause(s) the majority of tornadoes to occur in the spring? a) strong winds form in the spring b) spring brings high pressure fronts c) the meeting of the polar air masses and the tropical air masses d) the newly formed pollen from certain trees reacts with the moisture in the atmosphere

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve

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.

Which accounts for an increase in the temperature of a gas that is kept a constant volume