An object of about 10 kg is measured by a not-so-ideal balance. The pivot is provided by a 4.0mm wide ribbon, so the uncertainty of the position of the pivot is 4 mm. All distances on the scale are measured from the midpoint of the ribbon. Estimate the percentage error if the weight of the object is measured using this balance

b.

explanation:

10.0

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

i think its d if wrong im sorry