A colored object with a surface area of ​​1 m2 and the temperature is 27 ° C. If the temperature

around the object is 77 ° C, and the value of emissivity = 0.4 and the Stefan-Boltzman (notation o) is = 5.67 xlO '8C, then the heat absorbed is the unity of time

broad unity is
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Need in all of themmm only answer if you know pls

To practice problem-solving strategy 10.1 for energy conservation problems. a sled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slides a distance d1 down the slope and then covers the distance d2 along the horizontal terrain before stopping. find the coefficient of kinetic friction μk between the sled and the ground, assuming that it is constant throughout the trip.

What kind of air would be characteristic of a continental polar air mass? o a cold, dryob. warm, humido c. warm, dryo d. cold, wet