Chemistry, 16.12.2020 20:30 girdwood6678
Ms. Sullivan's class is investigating simple machines. They built a ramp to roll tennis balls down, and measured how
far they rolled. The tennis balls released at the top of the ramp all traveled about the same distance.
If they wanted the balls to roll even further, what could they do?
A)
Build a ramp that is taller.
B)
Build a ramp that is shorter,
C)
Use tournament grade tennis balls.
D)
Try the experiment in a different hallway.
Answers: 2
Chemistry, 22.06.2019 16:00
The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
Answers: 1
Chemistry, 23.06.2019 01:00
If a sample of radioactive isotopes takes 600 minutes to decay from 400 grams to 50 grams, what is the half-life of the isotope?
Answers: 1
Ms. Sullivan's class is investigating simple machines. They built a ramp to roll tennis balls down,...
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