The earliest geological period in the Phanerozoic eon was the
A) Cambrian
B) Triassic
C) Tertiary
D) Permian
Question 2
A 13000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplish this?
A) 260 N
B) 520 N
C) 2600 N
D) 5200 N
E) 13000 N