Chemistry, 26.09.2019 18:20 jerryG6171
Will mark ! ! student made the table shown to list some contact and non-contact forces. examples of forces contact forces non-contact forces the upward force applied by a couch on a student sitting on it the force applied by an electromagnet on a wire the force applied by a student on a box to move it the force which opposes the motion of an object on a rough surface which statement best explains why the table is incorrect? normal force is a force acting at a distance. the student applies a non-contact force on the box. the electromagnet and wire have to be in contact to apply the force. frictional force acts between the object and the rough surface when they are in contact.
Answers: 2
Chemistry, 21.06.2019 16:30
Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.
Answers: 3
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the waterâsoluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) â pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
Chemistry, 22.06.2019 19:30
What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2
Answers: 3
Chemistry, 22.06.2019 22:30
What must be in balance for temperatures to remain constant?
Answers: 1
Will mark ! ! student made the table shown to list some contact and non-contact forces. examples...
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