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
valentinak56 [21]
1 year ago
6

The mass of a coin is measured to be 12.5±0.1 g. The diameter is 2.8±0.1 cm and the thickness 2.1 ±0.1 mm. Calculate the average

density of the material from which the coin is made with its uncertainty. Give your answer in kg m-³.
with proper explanation
answer only if u know or else u know the consequences
​
Physics
1 answer:
Evgesh-ka [11]1 year ago
7 0

The average density of the material from which the coin is made is 9.67 g/cm³.

<h3>Volume of the coin</h3>

The volume of the coin at the given diameter is calculated as follows;

V = Ah

where;

  • A is area of the coin
  • h is the thickness of the coin

V = πd²/4 x h

V = π(2.8)²/4  x (0.21 cm)

V = 1.293 cm³

<h3>average density of the coin</h3>

The average density of the material from which the coin is made is calculated as follows;

density = mass/volume

density = 12.5 g / (1.293 cm³)

density = 9.67 g/cm³

Thus, the average density of the material from which the coin is made is 9.67 g/cm³.

Learn more about average density here: brainly.com/question/1354972

#SPJ1

You might be interested in
The speed v of a sound wave traveling in a medium that has bulk modulus b and mass density ρ (mass divided by the volume) is v=b
PilotLPTM [1.2K]

As it is given that Bulk modulus  and density related to velocity of sound

v = \sqrt{\frac{B}{\rho}}

by rearranging the equation we can say

B = \rho * v^2

now we need to find the SI unit of Bulk modulus here

we can find it by plug in the units of density and speed here

B = \frac{kg}{m^3} * (\frac{m}{s})^2

so SI unit will be

B = \frac{kg}{m* s^2}

SO above is the SI unit of bulk Modulus

3 0
3 years ago
How do heat insulators work
a_sh-v [17]
The heat is transferred to one material to another, however insulators minimize that transfer, keeping it in the area, warming it. 
4 0
2 years ago
Read 2 more answers
Which of the following is the most important reason why simple harmonic motion will not continue forever in most real-world situ
d1i1m1o1n [39]
<span>A.frictional effects dissipate energy.</span>
4 0
3 years ago
how can you tell, as you walk close to a parked car, if it had been running recently? describe your reasoning in terms of energy
Blababa [14]
This question is probably referring to heat energy transferring from the car to its surroundings.
4 0
3 years ago
A solid, uniform sphere with a mass of 2.5 kg rolls without slipping down an incline plane starting from rest at a vertical heig
kolezko [41]

Answer:

1/2 m v^2 + 1/2 I ω^2 = m g h       conservation of energy

I = 2/5 m R^2     inertia of solid sphere

1/2 m v^2 + 1/5 m ω^2 R^2 = m g h

1/2 v^2 + 1/5 v^2 = g h

v^2 = 10 g h / 7 = 1.43 * 9.80 * 19 m^2/s^2 = 266 m^2/s^2

v = 16.3 m/s

v = R ω

ω = 16.3 / .6 = 27.2 / sec

8 0
2 years ago
Other questions:
  • Mass = 567.5 g Volume = 50.0 cm3 What is the density of lead? 1.135 g/cm3 11.35 g/cm3 113.5 g/cm3 1,135 g/cm3
    11·1 answer
  • How much soil is in a 5 cm to 9 cm deep hole?
    14·1 answer
  • 20. Consider two Stars A and B with temperatures Ta and TB and radii Ra and RB respectively. If TA
    12·1 answer
  • The 8.00-cm long second hand on a watch rotates smoothly.
    11·1 answer
  • Which is not a device for reproducing sound? phonograph MP3 player gramophone microphone
    12·1 answer
  • What is the gauge pressure at the bottom of the cylinder? Suppose that the density of oil is 900 kg/m3.
    9·1 answer
  • In an RC-circuit, a resistance of R=1.0 "Giga Ohms" is connected to an air-filled circular-parallel-plate capacitor of diameter
    15·1 answer
  • How does the law of conservation of energy apply to machinesBased on the law of conservation of energy, how can we reasonably im
    7·1 answer
  • A five sentence summary about compounds <br><br><br> please it is do In 5min HELP ME PLZZZZ
    14·1 answer
  • What happens if two plates move away from each other?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!