The angle that a swinging simple pendulum makes with the vertical obeys the equation ?(t) = (0.150 rad) cos[(2.85 rad/s)t + 1.66]. (a) What is the length of the pendulum?
A) 0.15 m
B) 0.83 m
C) 1.21 m
D) 2.02 m
E) It cannot be determined from the information given.
(b) What is the mass of the swinging bob at the end of the pendulum?
A) 2.85 kg
B) 1.66 kg
C) 0.454 kg
D) 0.150 kg
E) It cannot be determined from the information given.
(a) C (b) E
You might also like to view...
A hot B8V star whose spectra shows a high metallicity is most likely a _____ star
A. Pop III
B. Pop II
C. Pop I
D. Dark Matter Star
A beam is under stress when it carries a load. The part of a beam where no tension or compression occurs is the
A) upper or lower flange. B) neutral layer. C) neither of these
Which of the following quantities has units of a velocity? (There could be more than one correct choice.)
A) 40 km southwest B) -120 m/s C) 9.8 m/s2 downward D) 186,000 mi E) 9.8 m/s downward
An object that is 4.0 cm tall is placed 15 cm in front of a concave mirror of focal length 20 cm. (a) Where is the image formed and how far is it from the mirror? (b) How tall is the image?
What will be an ideal response?