subject
Physics, 03.11.2019 12:31 areanna02

Electromagnets can be used to lock doors. how could an engineer increase the strength of an electromagnetic lock? check all that apply

a. by increasing the current through the wire

b. by reversing the current through the electromagnet

c. by adding more coils to the electromagnet

d. by increasing the space between the coils in the electromagnet

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 13:50
If jill was traveling at 300 miles in 4 hours due south what was his velocity in miles per minute a) 75 miles per hour due south b) .02 miles per second due south c) .5 miles per second due south d) 1 mile per hour due south
Answers: 2
question
Physics, 22.06.2019 08:00
Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d
Answers: 1
question
Physics, 22.06.2019 23:00
Hunter’s velocity was 4.5 m/s. at the end of his race, his velocity was the same. which best describes his movement? his movement stopped. his acceleration is zero. his time was constant. his acceleration was positive.
Answers: 1
question
Physics, 23.06.2019 00:20
When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve
Answers: 1
You know the right answer?
Electromagnets can be used to lock doors. how could an engineer increase the strength of an electrom...
Questions
question
Biology, 20.10.2019 11:30
question
Mathematics, 20.10.2019 11:30
question
Mathematics, 20.10.2019 11:30
Questions on the website: 13722362