Martin is conducting an experiment. His first test gives him a yield of 5.2 grams. His second test gives him a yield of 5.3 grams. His third test gives him a yield of 5.0 grams. The known yield of the substance is 5.1 grams of substance. Which of the following are true? a
His results are neither accurate nor precise.
b
His results are precise but not accurate.
c
His results are both accurate and precise.
d
His results are accurate but not precise.

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?