Chemistry, 26.11.2019 23:31 Dragonskeld

Sally and juan’s science teacher has directed the class to build a paper airplane. the challenge is to build an airplane that flies the farthest distance. the students have two days to design and test their planes. the assignment will end with a “fly-off”. sally and juan built their first plane. whenever they tested the plane, it would take a nose dive into the floor. they changed the design by reshaping the nose of the plane and adding some weight to the tail. the plane flew, but did not get very far. next they tried to change the way they threw the plane. after many tries, their plane flew an average distance of 35 meters. sally and juan's trial and error airplane design could be described as in the technological design process.

a) evaluating a solution
b) identifying a problem
c) communicating results
d) implementing a design

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 00:00

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Answers: 3

Answer

Chemistry, 22.06.2019 03:30

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Answers: 2

Answer

Chemistry, 22.06.2019 17:30

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

Answers: 2

Answer

Chemistry, 22.06.2019 19:30

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.

Answers: 2

Answer

You know the right answer?

Sally and juan’s science teacher has directed the class to build a paper airplane. the challenge is...

Questions