One of the ways that a magnet's domain could become unaligned is which of the following?

a. by using it too much
b. by putting it near a magnet that repels it
c. by breaking it in two
d. by dropping it

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )

Ihave this 50 question test the layer of earth's atmosphere where atoms and molecules escape into space is referred to as the a) exosphere b) ionosphere. c) mesosphere d) thermosphere

Abody covers a semicircle of radius 7cm in 5s .find its linear speed