Physics, 08.07.2019 07:00 jalenshayewilliams
Which is a property of every heterogeneous mixture? a. the mixture is made up of at least two different states. b. the mixture is made up of something dissolved in a liquid. c. the composition of the mixture is the same throughout. d. the characteristics of the mixture change within a sample. hana fills a cup with sandy ocean water. she pours the mixture through a filter. what does she collect that passes through the filter? a. a sample of pure water b. a solution of salt in water c. a suspension of sand in water d. a colloid of salt in water which describe colloids? check all that apply. 1.heterogeneous mixtures 2.homogeneous mixtures 3.may have a uniform appearance 4.are made up of at least two substances 5.will settle out over time when mixed, which states of matter form only a homogeneous mixture? a. two liquids b. two gases c. a solid and
Answers: 2
Physics, 21.06.2019 17:30
The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?
Answers: 1
Physics, 21.06.2019 17:30
How does convection affect our atmosphere? our layers of earth? our oceans?
Answers: 3
Physics, 21.06.2019 23:30
An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector between points f and g.
Answers: 1
Physics, 22.06.2019 06:30
Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)
Answers: 1
Which is a property of every heterogeneous mixture? a. the mixture is made up of at least two diffe...
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