Describe the movement of a compass needle when a magnet is placed in proximity to it, then moved away again.

When a magnet is brought in close proximity to a compass ; The needle moves towards the direction of the magnet.   while

when the magnet is moved away ; The compass needle returns back to its initial position ( north-south ) position

The movement of the compass pin when a magnet is brought in close proximity to the compass is due to the magnetic field created between the compass and the magnet in close proximity. The compass pin is made from steel ( magnetic material ).  while

When the magnet is removed the compass pin returns to its initial position (north-south ) position because the magnetic field disappears.

Hence we can conclude that When a magnet is brought in close proximity to a compass ; The needle moves towards the direction of the magnet.   while when the magnet is moved away ; The compass needle returns back to its initial position ( north-south ) position.

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answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation: