A357-magnum bullet has kinetic energy of 540 ft lb at 50 yards from the pistol. if it strikes and comes to a rest inside a 1.0 kg block of wood (with a specific heat capacity of 1700 j/kg k), by how much would the block's temperature change? the bullet is lead and weighs 158 grains (1.0 grain is equivalent to 0.0648 g).

Which of the following is an example of motion in two dimensions?

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.