Physics, 06.05.2020 05:28 steventhecool22
Ernesto is an engineer who is trying to develop a lighter, stronger carbon wire. He looks to nanotechnology, because he wants a wire with high resistance so it can give off heat. Where is Ernesto’s error? Carbon wires are heavy. Carbon wires have low resistance. Carbon wires are weak. Carbon wires are not a form of nanotechnology.
Answers: 2
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 11:30
Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?
Answers: 1
Ernesto is an engineer who is trying to develop a lighter, stronger carbon wire. He looks to nanotec...
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