Physics, 31.07.2019 01:30 anjali1097
maglev trains, like the one shown in the picture, use magnet fields to travel up to 600 miles per hour. magnets on the bottom of the train and on the tops of the rails have similar magnetic poles. based on properties of magnets, how do these magnets affect the train? a)the two magnetic fields repel each other, causing the train to levitate, or hover, above the rails. b)the powerful magnets greatly reduce the force of gravity, resulting in less friction and greater speed. c)the train is able to stop immediately because the magnets on the rails attract the magnets on the train. d)maglev trains have extremely powerful magnets, greatly decreasing the force of gravity and allowing them to float.
Answers: 2
Physics, 22.06.2019 02:10
How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by
Answers: 2
Physics, 22.06.2019 05:30
Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.
Answers: 2
Physics, 22.06.2019 06:00
Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.
Answers: 1
Physics, 22.06.2019 08:30
A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if itâs pressure is changed to 8.4 kpa while its temperature remains constant.
Answers: 3
maglev trains, like the one shown in the picture, use magnet fields to travel up to 600 miles...
History, 02.09.2020 01:01
Mathematics, 02.09.2020 01:01
Biology, 02.09.2020 01:01
Mathematics, 02.09.2020 01:01
Mathematics, 02.09.2020 01:01
Mathematics, 02.09.2020 01:01
History, 02.09.2020 01:01