Certain part of an aircraft engine has a volume of 2.2 ft3. (a) Find the weight of the piece when it is made of copper. (b) If the same piece is made of aluminum, what is its weight

These models show the electron structures of two different nonmetal elements. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?