Calvin & Hobbes, 45 kg, are sleigh riding down a hill. The hill they are on is irregular shaped,
slopes up and down and has snow of varying depths and textures. Below is a force vs time graph
of the force acting on their sled. The initial velocity when they hit the part of the hill
depicted on the graph at 11
m
/s.

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

What occurs during a combustion reaction

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.