A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 5.0 cm. If a timer is started when its displacement is a maximum (hence x = 5 cm when t = 0), what is the acceleration magnitude when t = 3 s?
a. 31.6 m/s2
c. 10.5 m/s2
b. 15.8 m/s2
d. zero
A
You might also like to view...
The physician orders gentamicin 40 mg IVPB q8 hr for infection. The medication is supplied in gentamicin 40 mg/100mL to infuse over 1 hour. Tubing drop factor is 20 gtt/mL. How many drops per minute will be given?
A long wire carrying a 2.0-A current is placed along the y-axis. What is the magnitude of the magnetic field at a point 0.60 m along the x-axis?
A) 6.7 × 10-7 T B) 13 × 10-7 T C) 1.2 × 10-7 T D) 6.7 T E) 12 T
A 1000-kg truck moving at 10 m/s that brakes to a stop in 5 s has an average braking force of
A) 1000 N. B) 2000 N. C) 3000 N. D) 4000 N. E) 5000 N.
The astronaut's experiment with the hammer and the feather illustrate that:
a. hammers and feathers have the same mass on the Moon. b. hammers and feathers have the same weight on the Moon. c. objects of different size, shape, and mass fall at the same rate in a vacuum. d. the absence of air on the Moon results in different rules of physics. e. there is no gravity on the Moon.