This topic contains a solution. Click here to go to the answer

Author Question: A 1.5-kg cart attached to an ideal spring with a spring constant of 20 N/m oscillates on a ... (Read 536 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
A 1.5-kg cart attached to an ideal spring with a spring constant of 20 N/m oscillates on a horizontal, frictionless track.
 
  At time t = 0.00 s, the cart is released from rest at position x = 10 cm from the equilibrium position.
  (a) What is the frequency of the oscillations of the cart?
  (b) Determine the maximum speed of the cart. Where does the maximum speed occur?
  (c) Find the maximum acceleration of the mass. Where does the maximum acceleration occur?
  (d) How much total energy does this oscillating system contain?
  (e) Express the displacement as a function of time using a cosine function.

Question 2

A thick slab of plastic lies at the bottom of a tank filled with water having an index of refraction of 1.33. A narrow laser beam is shone directly downward through the water on the plastic.
 
  You then gradually rotate the laser, thereby increasing the angle with respect to the normal that it strikes the plastic. You carefully note that at the instant the beam makes an angle of 66.5 with the normal in the water, no light enters the plastic, but it did enter for angles smaller than that. What is the speed of light in the plastic slab? (c = 3.00  108 m/s)



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tmlewis4706

  • Sr. Member
  • ****
  • Posts: 295
Answer to Question 1

(a) 0.58 Hz (b) 0.37 m/s, at the equilibrium position
(c) 1.3 m/s2, at maximum displacement (d) 0.10 J (e) x = (0.10 m) cos (3.7 s-1 t)

Answer to Question 2

2.46  108 m/s




PhilipSeeMore

  • Member
  • Posts: 561
Reply 2 on: Jul 29, 2018
:D TYSM


rleezy04

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

For a complete list of videos, visit our video library