Suppose a contract states that the designer should bear the responsibility if substantial differences were found between the design drawings and the reality. What type of disagreement may happen due to this statement? Select one: a. Disagreement about the definition of concepts and terminology
b. Disagreement about irrelevant facts
c. Disagreement about unknown facts
d. Disagreement about the definition of facts​

Asimple speed reducer is composed of 2 spur gears. the pinion gear has a pitch diameter of 0.75" and 36 teeth while the driven gear has a pitch diameter of 4.0" and 192 teeth. a)-what is the diametral pitch of each gear? b)-if an electric motor rotating ccw at 3000 rpm is coupled to the pinion, what is the rotational speed of the driven gear? c)-if the torque delivered to the pinion is 1 n-m, what is the torque on the driven gear? d)-what is the power transmitted by the gear train?