Delivering Presents
The lift needed (in newtons) to keep everything in the air, considering each of the 9 Reindeers as 200kg, the sled and equipment as 1000kg, Santa as 200kg, and the presents as 20,000kg. g=10m/s^2.
What is 130,000N?
You throw a snowball at your opp, but completely miss and throw it vertically up at 10m/s. The time you have to dodge before it falls back down. g = 10m/s^2.
What is 2s?
The voltage needed to supply a 60-watt lightbulb with 1A of current.
What is 60V?
What is 15 in or 38 cm?
The speed needed to travel around the world once in 24 hours (along the equator).
What is 463 m/s?
The force you apply to a 0.1kg snowball when throwing has the function F(t)=4 t N/s. The speed of the snowball as it leaves your hands after throwing for 1s.
What is 20m/s?
Plugged into a 120V outlet, a strip of 20 lights in series draws 5 amps. The current drawn through that strip if one light burns out.
What is 0A?
The wavelength of light that Reindeers see in.
What is ultraviolet?
Santa drops a present 10m above a chimney after slowing down to 40m/s. The distance away from the chimney where he should drop the present.
What is 57m?
The farthest distance you can throw a snowball at 10m/s. g = 10m/s^2.
What is 10m?
A strip of 10 48ohm lights in series, and a strip of 100 4 ohm lights in series are plugged into a 120V outlet, both in parallel. The total current drawn.
What is 0.55A?
The famous physicist born on Christmas day in the old Julian calendar.
Who is Isaac Newton.
The average distance between households if there are 500 million households that Santa delivers across 65 million square kilometers of habitable land.
What is 0.361km?
Your 1m tall opp hides 1m behind a 2m high wall that is 20m away from you. You throw a snow ball at a height of 1m. The minimum angle to throw at hit your opp.
What is 46 degrees?
A Christmas light string has 5 sections in parallel, each with 10 48ohm lights in series, and is plugged into a 120V outlet. The resistance of one section (a), total resistance (b), total current (c), and voltage across each bulb (d).
What is 480 ohm (a), 96 ohm (b), 1.25A (c), and 12V (d).
The first person to manufacture an artificial snowflake.
Who is Ukichiro Nakaya?
An estimate for the ratio of lift to drag ratio for a single reindeer (explain your through process).
What is -0.001 (around that order of magnitude)?
You are fed up with throwing snow ball, and decide to roll a 0.1 kg snowball with a 0.1m radius from a 50m high hill at 30 degrees above the horizontal. Assuming it gains 0.01m radius every 1m meter it travels, give the final speed at the bottom of the hill.
What is TBD (too much calculus)?
The reasons why some LED Christmas lights look unnatural compared to incandescent lights, considering how they produce light.
The names of the nine reindeer that pull Santa's sled.
Who are Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner, Blitzen, and Rudolph?