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

Author Question: John says that the value of the function cos(t + T) + , obtained one period T after time t, is ... (Read 45 times)

TFauchery

  • Hero Member
  • *****
  • Posts: 500
John says that the value of the function cos(t + T) + , obtained one period T after time t, is greater than cos(t + ) by 2. Larry says that it is greater by the addition of 1.00 to cos(t + ). Which one, if either, is correct?
 a. John, because T = 2.
  b. John, because T = 1 radian.
  c. Larry, because T = 2.
  d. Larry, because T = 1 radian.
  e. Neither, because cos( + 2) = cos.

Question 2

Ellen says that whenever the acceleration is directly proportional to the displacement of an object from its equilibrium position, the motion of the object is simple harmonic motion. Mary says this is true only if the acceleration is opposite in direction to the displacement. Which one, if either, is correct?
 a. Ellen, because 2 is directly proportional to the constant multiplying the displacement and to the mass.
  b. Ellen, because 2 is directly proportional to the mass.
  c. Mary, because 2 is directly proportional to the constant multiplying the displacement and to the mass.
  d. Mary, because 2 is directly proportional to the mass.
  e. Mary, because the second derivative of an oscillatory function like sin(t) or cos(t) is always proportional to the negative of the original function.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

scikid

  • Sr. Member
  • ****
  • Posts: 300
Answer to Question 1

e

Answer to Question 2

e




TFauchery

  • Member
  • Posts: 500
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it


Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
Excellent

 

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

For a complete list of videos, visit our video library