If a 20 gram piece of copper at 50oC touches a 10 gram piece of copper at 90oC, in which direction will heat flow? Estimate the final temperature once both pieces of copper reach thermal equilibrium and explain your estimate. a)
the heat flows from the 10 g piece to the 20 gram piece and final temperature is about 70oC because they are both made out of copper
b)
he heat flows from the 20 g piece to the 10 gram piece and final temperature is about 50oC because the hot piece has lower mass

Hannah is writing a report on how albedo affects the global climate. she’s proofreading her passage for any factual errors. which sentence must hannah correct before submitting her report? earth receives energy from the sun. this energy drives many of the processes on earth, including its climate. some part of this energy is reflected by earth’s surface. we use the term albedo to describe the reflected energy. albedo of an object is the ratio of the reflected radiation to the total radiation reaching the object. a value of 0 means no energy is absorbed by the object, whereas a value of 1 means that all of the energy is absorbed. in this way, the albedo of an object can influence earth’s atmospheric temperature.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.