How many kilograms of iron were needed to produce this volume of h2 if the temperature was 23 ∘c? (for simplicity, assume that the pressure experienced by the balloon will be 1. 00 atm. ).

An example of a fine motor skill is

Winds are formed from the sun's uneven heating of the earth's atmosphere. the wind patterns are altered by bodies of water, different landforms, and plant cover. because of this, the wind is considered a form of

Acheetah ran 75 meters at a speed of 25 meters per second. how long was the cheetah running? 3 seconds 5 seconds 30 seconds 50 seconds