1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ELEN [110]
3 years ago
7

As she was trying to study, Tanisha asked her roommate to lower the radio. Her roommate had turned the radio up originally from

a volume level of 14 to 15, which was just enough for Tanisha to detect. Tanisha's roommate turned the radio back down to 14 after Tanisha asked her to lower it, which satisfied Tanisha. This is probably the result of: ________.
Physics
1 answer:
STatiana [176]3 years ago
4 0

Answer:

just-noticeable difference

Explanation:

Using principles of psychology and physics, a branch of experimental psychology called psychophysics has been created. This field is focused on the sensation, the sense and the perception of stimuli. Within this branch it has been called just-noticeable difference to the amount that must be changed of some stimulus so that this difference is noticeable, that is to say, the threshold at which the change is perceived.

You might be interested in
An open pipe, 0.29 m long, vibrates in the second overtone with a frequency of 1,227 Hz. In this situation, the fundamental freq
Andru [333]

Answer:

f = 409 Hz

Explanation:

We have,

Length of the open organ pipe, l = 0.29 m

Frequency of vibration of second overtone, f_2 = 1227 Hz

It is required to find the fundamental frequency of the pipe. For the open organ pipe, the frequency of second overtone is given by :

f_2=\dfrac{3v}{2l}

v is speed of sound

Let f is the fundamental frequency. It is given by :

f=\dfrac{v}{2l}

The relation between f and f₂ can be written as :

f_2=3f\\\\f=\dfrac{f_2}{3}\\\\f=\dfrac{1227}{3}\\\\f=409\ Hz

So, the fundamental frequency of the pipe is 409 Hz.              

6 0
3 years ago
Which contribution did Kepler make to viewing the solar system?
amm1812
He proposed the sun-centered model of the solar system.
8 0
3 years ago
What are the three important safety factors for surgical technologists to consider when exposed to ionizing radiation?
Gemiola [76]

Answer:

Exposure time limitation, shielding and distance.

Explanation:

  • Limitation of exposure time, since the dose received is directly proportional to the exposure time, so that, at a shorter time, lower dose. For this reason, planning is suggested, to reduce time.
  • Use of shields. This allows a reduction in the dose received by the technician when filtered by the barrier (screen). There are two types of shields or screens, the primary barriers (attenuate the radiation of the primary beam) and the secondary barriers (avoid diffuse radiation).
  • Distance to the radioactive source. The dose received is inversely proportional to the square of the distance to the radioactive source. Therefore, if the distance is doubled, the dose received will decrease by a quarter. Reason for this, it is advisable to use devices or remote controls whenever possible.
7 0
3 years ago
Jill leaves home and rides a distance of 70 km. It took her 2.5 hours. What is her speed?
Paraphin [41]
The answer is ...
28 km per hour
5 0
3 years ago
A 4.2 kg sled is being pulled along a snow-covered road with a rope that exerts a horizontal force of 6.0 n and, at that moment,
Stella [2.4K]
<span>the body is moving horizontally, it doesnt matter watever kind of horizontal forces are acting.
 Therefore the normal force is equal to the weight
 N=mg=4.2*9.8=41N
 Note: the other data in the problem have no relevance
 answer
</span> the normal force on the sled is 41N 
6 0
3 years ago
Read 2 more answers
Other questions:
  • Help me Plaese
    15·1 answer
  • Which one of the two potential differences emf or terminal voltage will be greater in magnitude?Why?​
    14·1 answer
  • What is the wavelength of an earthquake wave if it has a speed of 7 km/s and a frequency of 12 Hz?
    7·1 answer
  • What would the force be if the separation between the two charges in the top window was adjusted to 8.19 ✕10-11 m? (The animatio
    6·1 answer
  • The maximum wavelength that an electromagnetic wave can have and still eject electrons from a metal surface is 459 nm. What is t
    13·1 answer
  • A study showed the average basal metabolic rate of a human to be about 1500 kcal/day (6279 kJ/day). If it were possible to const
    6·1 answer
  • The moment of inertia of a thin uniform rod of mass M and length L about an Axis perpendicular to the rod through its Centre is
    8·1 answer
  • Students in physics lab times 10 oscillations of the pendulum and get 11.50 seconds how long is a pendulum in centimeters?
    6·1 answer
  • a 2000kg car initially traveling at a speed of 15 m/s is accelerated by a constant force of 10000 n for 3 seconds. the new speed
    15·1 answer
  • A multidimensional database (MDDB) is a type of database in which data can be viewed from multiple dimensions; commonly used wit
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!