The Q of a nuclear reaction is equal to:
a. the total charge involved.
b. energy associated with the change in mass.
c. energy associated with momentum conservation.
d. the exothermic endothermy.
b
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An atom is excited when one or more of its electrons
A) vibrates. B) is boosted into higher energy levels. C) undergoes a frequency change. D) becomes frantic.
At room temperature, a typical person loses energy to the surroundings at the rate of 62.0 W
If this energy loss has to be made up by an equivalent food intake, how many Calories does this person need to consume every day just to make up this heat loss? A) 1040 Calories B) 1160 Calories C) 1280 Calories D) 1340 Calories E) 1400 Calories
Blow on your hand and you feel the warmth of your breath. Pucker your lips so your breath expands as you blow and your breath is
A) still warm. B) cool. C) neither of these
Ideal Gas Law: A car starts out when the air temperature is 288 K and the absolute (total) air pressure in the tires is 500 kPa. After driving a while, the temperature of the air in the tires increases to 298 K. What is the pressure in the tires at that point, assuming their volume does not change?
A. 129 kPa B. 483 kPa C. 507 kPa D. 517 kPa E. 532 kPa