Jessica is using a micrometer screw (screw gauge) to measure the diameter of a wire. while recording the measurements, she views the readings from different angles. a. is there any difference in the recorded values of the same measurement reading, when viewed from different angles? b. name the phenomenon that causes this difference. c. does this affect the precision of a measurement made by the student?

Idon’t quite understand this problem

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.

A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?