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Author Question: A single concave spherical mirror produces an image which is A) always virtual. B) ... (Read 223 times)

Sportsfan2111

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on: Jul 29, 2018
A single concave spherical mirror produces an image which is
 
  A)
 
  always virtual.
  B)
 
  always imaginary.
  C)
 
  always real.
  D)
 
  real only if the object distance is less than f.
  E)
 
  real only if the object distance is greater than f.

Question 2

The velocity of an object as a function of time is given by v(t) = -3.0 m/s - (2.0 m/s2 ) t + (1.0 m/s3 ) t2. Determine the instantaneous acceleration at time t = 2.00 s.
 
  A)
 
  -5.0 m/s2
 
  B)
 
  2.0 m/s2
 
  C)
 
  -18 m/s2
 
  D)
 
  -3.0 m/s2
 
  E)
 
  18 m/s2


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mjbamaung

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Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

B


Sportsfan2111

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Reply #2 on: Jul 29, 2018
Thank you!


mjbamaung

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Reply #3 on: Jul 29, 2018
Always glad to help...


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