Mary and Jane are standing at each end of an ice board 1.0 m in length. 2 points The ice board rests on frictionless ice. Mary throws a 5.0 kg ball
horizontally to Jane who catches it. Given that the mass of Mary, Jane and
the ice board are 42 kg, 40 kg and 3.0 kg respectively, what is the distance
travelled by the ice board before coming to rest again? *
0.053 m
0.056 m
0.059 m
0.063 m

Which best represents the law of conservation of mass ?

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above