A30 kg male emperor penguin under a clear sky in the bio antarctic winter loses very little heat to the environment by convection; its feathers provide very good insulation. it does lose some heat through its feet to the ice, and some heat due to evaporation as it breathes; the combined power is about 12 w the outside of the penguin's body is a chilly -22°c, but its sur- roundings are an even chillier -38°c. the penguin's surface area is 0.56 m2, and its emissivity is 0.97. a. what is the net rate of energy loss by radiation? b. if the penguin has a 45 w basal metabolic rate, will it feel warm or cold under these circumstances?

3is a crest4 is a trough 2 is the amplitude 1 is the wavelength

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.

3x + 2x = both people using the same measure of like 5x = x= 25 meters per second. 25ms. it takes them 4 seconds to

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.