Answers: 3
Physics, 22.06.2019 09:00
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.
Answers: 3
Physics, 22.06.2019 10:00
Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?
Answers: 1
Physics, 23.06.2019 06:30
Pl i beg u so much now propane burns in oxygen to produce carbon dioxide and steam. the unbalanced equation for this reaction is: c3h8 + o2 β co2 + h2o use coefficients to balance this equation. a) c3h8 + 3 o2 β 3 co2 + 4 h2o b) c3h8 + o2 β 3 co2 + 4 h2o c) c3h8 + 5 o2 β 3 co2 + 4 h2o d) 2 c3h8 + 5 o2 β 3 co2 + 4 h2o
Answers: 1
400JA container with a mass of 5 kg is lifted to a height of 8 m. How much work is done
by the grav...
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Mathematics, 13.09.2019 00:20
Mathematics, 13.09.2019 00:20
Mathematics, 13.09.2019 00:20
Mathematics, 13.09.2019 00:20
Mathematics, 13.09.2019 00:20
Mathematics, 13.09.2019 00:20