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End of Semester Test: Physics A
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Select the correct answer.
A force Fmaking an angle e with the horizontal is acting on an object resting on the table. Which statement is true for the motion of sliding the
object on the table?
OA
B.
It is independent of all the forces acting on the object.
It depends only on the forces acting along the x-axis.
It depends only on the forces acting along the y-axls.
it depends only on the normal force acting on the object.
С.
OD
OE.
It depends only on the frictional force acting on the object.
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the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

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.