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
kondaur [170]
3 years ago
5

Ben franklin showed that 1 teaspoon of oil would cover about 0.50 acre of still water. if you know that 1.0 x 104m2 = 2.47 acres

, and that there are 5.0 cm3 in a teaspoon, what is the thickness (in cm) of a later of oil?
Physics
1 answer:
Dmitry_Shevchenko [17]3 years ago
3 0

To solve for the thickness of the latter of oil, we can simply divide the volume by the total surface area:

Thickness = Volume / Surface Area

We are both given the volume and the surface area, all we have to do now is to convert the units in like terms so that we can cancel those out.

Surface Area = 0.50 acres (1.0 x 10^4 m^2 / 2.47 acres)

Surface Area = 2,024.29 m^2

Further converting this into cm:

Surface Area = 2,024.29 m^2 (100 cm / m)^2

Surface Area = 20,242,914.98 cm^2

 

Therefore the thickness is:

Thickness = 5.0 cm^3 / 20,242,914.98 cm^2

Thickness = 2.47 x 10^-7 cm

or

<span>Thickness = 2.47 x 10^-9 m = 2.47 nm = 24.7 A</span>

You might be interested in
Consider the following four objects: a hoop, a solid sphere, a flat disk, a hollow sphere. Each of the objects has mass M and ra
Svetlanka [38]

Answer:

Hoop.

Explanation:

The angular acceleration performed at a given torque:

\alpha = \frac{\tau}{I}

The moments of inertia of each element are described below:

Hoop

I = M\cdot R^{2}

Solid sphere

I = \frac{2}{5}\cdot M \cdot R^{2}

Flat disk

I = \frac{1}{2}\cdot M \cdot R^{2}

Hollow sphere

I = \frac{2}{3}\cdot M \cdot R^{2}

The greater the moment of inertia, the greater the torque to obtain the same angular acceleration. Therefore, the hoop requires the largest torque to receive the same angular acceleration.

8 0
3 years ago
A student produces a wave in a long spring by
Sliva [168]

Answer: 2

Explanation:

4 0
3 years ago
I need help with...
Rom4ik [11]
The car will gain new momentum if it's velocity is doubled or tripled.
6 0
3 years ago
Decreasing the temperature of a reaction decreases the reaction rate because
RoseWind [281]
D) decreasing the temperature lowers the average kinetic energy of the reactants.
8 0
3 years ago
These the flow of electrons (the current) and where some of the electrons' energy gets converted into heat. (Lessons 5.01-5.03)
liq [111]

Answer:

Conductors.

Explanation:

Conductors allow the flow of electrons i. e. the current and where some of the electrons energy gets converted into heat while some electrons energy converted into light. Conductors are the materials which has the ability to allow heat and electricity to flow through them. Metals such as gold, copper, Silver, Aluminum, Mercury, Steel, Iron and salty water etc are good conductors of heat and electricity.

3 0
3 years ago
Other questions:
  • Janice is given a mixture of alcohol and water the teacher tells her that she can use temperature to separate these compounds wh
    7·1 answer
  • Which of the following is an element?
    7·1 answer
  • Does the fastest car always travel the farthest?
    9·1 answer
  • This electromagnetic wave has a very high penetrating power. It is emitted during the decay of many radioactive isotopes, such a
    9·2 answers
  • What is the tension in the cord after the system is released from rest? Both masses (A and B) are 10-kg.
    9·1 answer
  • An atom of sodium-23 (atomic number = 11) has a positive charge of +1. Given this information, how many
    6·1 answer
  • In the simulation above, as the projectile travels upward, how does the vertical velocity change? Vertical velocity is zero. Ver
    10·2 answers
  • The electric field force is a ___________ quantity.
    10·1 answer
  • 17. A ball on the end of a string is
    11·1 answer
  • To investigate how the vertical height and horizontal distance travelled by a table tennis ball is affected by the surface with
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!