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
Volgvan
3 years ago
7

Describe how you could measure the thickness of paper with an ordinary ruler

Physics
1 answer:
Svetllana [295]3 years ago
5 0
Measure a whole stack (one in which you know the number of sheets), then divide your measurement by the number of sheets in that stack
You might be interested in
The most common isotope of hydrogen contains a proton and an electron 'separated by about -11-27 5.0 x 10 m. The mass of proton
Brrunno [24]

Answer:

A)   F_g = 4.05 10⁻⁴⁷ N, B)   F_e = 9.2 10⁻⁸N, C)    \frac{F_e}{F_g} = 2.3 10³⁹

Explanation:

A) It is asked to find the force of attraction due to the masses of the particles

Let's use the law of universal attraction

            F = G \frac{m_1m_2}{r^2}

let's calculate

            F = 6.67 \ 10^{-11} \ \frac{9.1 \ 10^{-31} \ 1.67 \ 10 ^{-27} }{(5 \ 10^{-11})^2 }

            F_g = 4.05 10⁻⁴⁷ N

B) in this part it is asked to calculate the electric force

Let's use Coulomb's law

            F = k \  \frac{q_1q_2}{r^2}

let's calculate

            F = 9 \ 10^9 \  \frac{(1.6 \ 10^{-19} )^2}{(5 \ 10^{-11})^2}

             F_e = 9.2 10⁻⁸N

C) It is asked to find the relationship between these forces

        \frac{F_e}{F_g} = \frac{9.2 \ 10^{-8} }{4.05 \ 10^{-47} }

        = 2.3 10³⁹

therefore the electric force is much greater than the gravitational force

4 0
3 years ago
Which is an example of an exothermic process?
Scorpion4ik [409]

Answer:

an example of an exthermic process is combustion

Explanation:

combustion is like lighting a candle

3 0
3 years ago
What are the uses of evaporative salts?
Makovka662 [10]
<span>to preserve foods, dye fabric, and DE-ice roads i hopes this helps

</span>
4 0
3 years ago
Which of the following statements best describes ergonomics?
emmainna [20.7K]
Can you provide the multiple choices​ ?
3 0
3 years ago
Read 2 more answers
A driver of a car enters a new 110 km/h speed zone on the highway. The driver begins to accelerate immediately and reaches 110 k
levacccp [35]

Answer:

30Km/h

Explanation:

acceleration is the change of speed in a given time so when we substract the accelerations we can know how much the car goes per an hour

3 0
3 years ago
Other questions:
  • Forensic evidence is categorized as this type of evidence in a court of law?
    7·1 answer
  • How is the weight of an object in a spaceship near the moon related to the distance that the spaceship is from the moon?
    11·1 answer
  • An is a representation of something in the natural world .
    5·1 answer
  • Consider four different types of electromagnetic radiation: microwaves, infrared, ultraviolet, and X–rays. Arrange the types of
    13·1 answer
  • A car is moving at 18 m/s when it accelerates at 8 m/s2 for 2 sec. What is his new velocity ?
    14·1 answer
  • An object is placed a distance of twice the focal length away from a diverging lens. What is the magnification of the image?
    12·1 answer
  • Could I get help on this question please
    6·1 answer
  • An object in the shape of a thin ring has radius a and mass M. A uniform sphere with mass m and radius R is placed with its cent
    6·1 answer
  • The forces acting on a ball sitting on the ground are
    13·1 answer
  • How much power will be required to force a current of 4.13 amps to flow through a conductor whose resistance is 113 ohms? Use tw
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!