This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An unknown tuning fork is sounded along with a tuning fork whose frequency is 256. Hz and a beat ... (Read 118 times)

lbcchick

  • Hero Member
  • *****
  • Posts: 550
on: Jul 27, 2018
An unknown tuning fork is sounded along with a tuning fork whose frequency is 256. Hz and a beat frequency of 3. Hz is heard. What is the frequency of the unknown tuning fork?
 
  A) It must be 256 Hz.
  B) It must be 259 Hz.
  C) It could be either 253 Hz or 259 Hz; there is no way to tell.
  D) It must be 253 Hz.

Question 2

A 2200. kg auto moving at 12.0 m/s runs into a 3800. kg truck which is moving in the same direction at 5.00 m/s. The collision is perfectly inelastic.
 
  (a) What is the speed of the auto immediately after the collision?
  (b) What percentage kinetic energy did the truck gain in the collision?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kjo;oj

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

(a) 7.57 m/s
(b) 129. gain


lbcchick

  • Member
  • Posts: 550
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

FergA

  • Member
  • Posts: 352
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

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

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Characteristics of Sound: Frequency and Amplitude Characteristics of Sound: Frequency and Amplitude
How to find an unknown angle using reciprocal trigonometric functions How to find an unknown angle using reciprocal trigonometric functions
The Frequency Distribution Curve of a Drug The Frequency Distribution Curve of a Drug
Tuning fork Tuning fork
Letter Frequency Table Letter Frequency Table
Genetic drift of an allele frequency Genetic drift of an allele frequency
Video: Factors that affect conduction rates (myelination, axon diameter & temperature)

For a complete list of videos, visit our video library