A log was cut from a tree and put in
water. The log floated on its side so
that half the log was above the water
surface. Another log was cut from the
same tree. This log was twice as long
and twice as wide. How does the
larger log float compared with the
smaller log? Circle the best answer
A More than half of the larger log
floats above the water surface.
B Half of the larger log floats above the water surface.
C Less than half of the larger log floats above the water surface.
Explain your thinking. Describe the "rule" or the reasoning you used for your answer.

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b

What will a positive and a negative charge do if they are separated from each other?

1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?