Arunner generates 1260 w of thermal energy. if this heat has to be removed only by evaporation, how much water does this runner lose in 15 minutes of running? the latent heat of vaporization of water is 22.6 × 105 j/kg.

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

Ais a multilevel way of grouping items based on common properties among them. a. memory b. conceptual hierarchy c. schema d. semantic network