Theobromine is a bitter alkaloid of the cacao plant. This chemical formula (CH. NO,) is in most chocolate bars.
How many atoms of each element are in this molecule of Theobromine
(C, HN,9,)?
A 20
B 21
C 5
D 26

The law of reflection states that the angle of reflection is equal to the angle of

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.

Atruck travels at an average speed of 70 km/hr. if it travels 100 km in the first hour, how far will it go the second hour of a 2 hour trip? if you could also give me the steps that would great.