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fredd [130]
3 years ago
9

Do two sound waves that seen equally loud always have the same amplitude? explain

Physics
1 answer:
givi [52]3 years ago
3 0
No, because of that "seem" part of the question.

Your hearing system is not a linear sound detector and meter. 
Sounds with equal amplitudes at different frequencies "seem"
to have different loudness, and the differences are different
for different people.

You've probably heard the saying "Things are not always as they seem."
The fact is, they NEVER are.
You might be interested in
The filament of a lightbulb has a resistance of R0=12Ω at 20 ∘C and 140 Ω when hot. Part APart complete Part B In this temperatu
solong [7]

Answer:

T = 2390 degree C

Explanation:

Given data:

Resistance 12 ohm

Temperature 20 degree C

Resistance _{HOT} = 140 ohm

we know that linear relation between the resistance and temperature is given asR = R_O[ 1+ \alpha ( T - T_o)]

where R_O is resistance at _o, and \alpha = coefficient of resistivity

140 = 12 \times ( 1 + 0.0045 \Delta T}

SOLVING FOR \Delta T

\Delta T = 2370 degree C

WE KNOW

\Delta T = T - T_o

T = 2370 + 20

T = 2390 degree C

4 0
3 years ago
A student had rolled 114 dice and removed all those landed on the number six. the student rolled the remaining dice again and re
allochka39001 [22]

Answer:

4 rolls

Explanation:

The probability of rolling a 6 is 1/6 = 0.1667 (4.d.p)

This means that approx. 1/6 of the dice will land on a 6.

If the student removes a 1/6 of the dice each time, it means that the number of dice is decreasing by 1/6 each roll (or multiplying by 5/6).

114/2 = 57

By multiplying 114 by 5/6 and continuing we can see how many times it takes for us to get past 57.

Roll 1: 114 x 5/6 = 95

Roll 2: 95 x 5/6 = 79.17

Roll 3: 79.17 x 5/6 = 65.97

Roll 4: 65.97 x 5/6 = 54.98

Most likely to take 4 rolls before halving the number of dice.

You could also solve this problems by writing an equation and solving using logs but I think this method is easier to understand.

Hope this helped!

8 0
3 years ago
Which statement describes the energy transformation that occurs when a person eats a sandwich to gain energy for a long hike?
ikadub [295]

Answer:

D

Explanation:

chemical energy in food is used for hiking which is kinetic energy

5 0
3 years ago
CAN YALL HELP ME WITH DIS PLZ
Furkat [3]

Answer:

it would dry your hair lol

6 0
3 years ago
Read 2 more answers
All atoms of the element potassium have 19 protons. One of the most stable types of potassium atoms has the mass number 39. How
ozzi
The formular for determinatio of mass number is this:
Mass number = number of proton + number of neutron
From the question, we are told that:
Mass number = 39
Proton number = 19
Number of proton = ?
Number of neutron = mass number -  number of proton
Number of neutron= 39 - 19 = 20
Therefore, number of neurtron = 20. 
3 0
4 years ago
Read 2 more answers
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