I'm boreddd, so what's poppin?

Let r be a robotic arm with a fixed base and seven links. the last joint of r is a prismatic joint, the other ones are revolute joints. give a set of parameters that determines a placement of r. what is the dimension of the configuration space resulting from your choice of parameters?

The head restraint should be adjusted so that it reaches a. the top of your ears b. the base of your skull c. the top of the head

Which finger presses the h key on the keyboard? index finger on the left hand pinky finger on the right hand index finger on the right hand thumb on the left hand