Chemistry, 31.07.2019 07:50 peytondavis2424
Omar wants to determine if the mass of a model rocket affects how long the rocket is able to stay up in the air. to do this, he constructs three identical rockets and then fills two of the rockets with varying amounts of sand to add mass. he then launches the rockets one at a time and times how long they are able to stay airborne. what is the test variable (independent variable) in omar's experiment? a. the masses of the model rockets b. the force with which each rocket is launched c. the materials out of which the rockets were made d. the time the rockets remain airborne
Answers: 2
Chemistry, 22.06.2019 16:40
Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg
Answers: 3
Chemistry, 22.06.2019 17:40
If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?
Answers: 1
Omar wants to determine if the mass of a model rocket affects how long the rocket is able to stay up...
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