Answer:B.As the north pole of the electromagnet nears the south pole of the permanent magnet, the current reverses and the poles of the magnets then repel.
Explanation:
Answer:
Explanation:
Given
Minute hand length =16 cm
Time at a quarter after the hour to half past i.e. 1 hr 45 min
Angle covered by minute hand in 1 hr is 360 and in 45 minutes 270
(c)For the next half hour
Effectively it has covered 2 revolution and a quarter
angle turned
(f)Hour after that
After an hour it again comes back to its original position thus displacement is same =25.136
Angle turned will also be same i.e.
Eneregy is the ability to to do work
it takes work to heat someone
heat is energy
put the solid metal block in a campfire and heat it up
tada
wait, we need the options, nevermind
Answer:
Typically, atoms gain or lose electrons to achieve a stable electron configuration.
Explanation:
Answer: adult males generally require 2,000-3000 calories per day, and adult females need 1,600-2,400.