A skateboarder traveling at 7. 0 meters per second rolls to a stop at the top of a ramp in 3. 0 seconds. What is the skateboarder’s acceleration? acceleration=[acceleration]m/s2

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

Give the orbital configuration of the phosphorus (p) atom.

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks. energy was destroyed inside the blocks. energy was absorbed into the blocks from outside the system. energy was transferred from the warmer block to the cooler block.