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
s344n2d4d5 [400]
3 years ago
15

Scientists in a test lab are testing the hardness of a surface before constructing a building. Calculations indicate that the en

tire structure would sink by a certain amount for every additional floor that is added. If the maximum permissible limit for depression of the structure is 20 centimeters, how many floors can be safely added to the building?
Physics
1 answer:
Over [174]3 years ago
7 0
It depends on what that "certain amount" is.
You might be interested in
The following statements address the science behind the pulley system illustrated:
Leni [432]

Answer:

i. Statements A and B

Explanation:

Sana nakatulong

7 0
3 years ago
Badri makes the table below to review the factors that affect the electric force between objects. Which change will correct the
kirill115 [55]

Answer:

Changing "Mass" to "Amount of electric charge"

4 0
4 years ago
Read 2 more answers
Bare free charges do not remain stationary when close together. To illustrate this, calculate the acceleration of two isolated p
Marta_Voda [28]

Answer:

Acceleration, a=9.91\times 10^{15}\ m/s^2

Explanation:

It is given that,

Separation between the protons, r=3.73\ nm=3.73\times 10^{-9}\ m

Charge on protons, q=1.6\times 10^{-19}\ C

Mass of protons, m=1.67\times 10^{-27}\ kg

We need to find the acceleration of two isolated protons. It can be calculated by equating electric force between protons and force due to motion as :

ma=\dfrac{kq^2}{r^2}

a=\dfrac{kq^2}{mr^2}      

a=\dfrac{9\times 10^9\times (1.6\times 10^{-19})^2}{1.67\times 10^{-27}\times (3.73\times 10^{-9})^2}      

a=9.91\times 10^{15}\ m/s^2

So, the acceleration of two isolated protons is 9.91\times 10^{15}\ m/s^2. Hence, this is the required solution.

3 0
3 years ago
Which philosopher caused the “death” of the field of chemistry for 2000 years? *
mylen [45]

Answer:

Aristotle

Explanation:

In ancient Greece, the popular

philosopher Aristotle declared

that all matter was made of only

four elements: fire, air, water

and earth. He also believed that

matter had just four properties:

hot, cold, dry and wet.

6 0
3 years ago
Two people push on a boulder to try to move it. The mass of the boulder is 825 kg. One person pushes north with a force of 64 N.
stira [4]

Answer:

0.09 m/s²

Explanation:

Acceleration: This can be defined as the rate of change of velocity.

The S.I unit of acceleration is m/s².

From the question, expression for acceleration is given as

F' = ma  

Using Pythagoras Theory,

√(F₁²+F₂²) = ma................... Equation 1

Where F₁ = Force of the First person on the boulder, F₂ = Force of the Second person on the boulder, F' = resultant force acting on the boulder, m = mass of the boulder, a = acceleration of the boulder.

make a the subject of the equation

a = √(F₁²+F₂²) /m................ Equation 2

Given: m = 825 kg, F₁ = 64 N, F₂ = 38 N,

Substitute into equation 2

a = [√(64²+38²)]/825

a = {√(5540)}/825

a = 74.43/825

a = 0.09 m/s²

4 0
3 years ago
Other questions:
  • Which one of the following accurately pairs the device with its function?
    6·2 answers
  • The planet Mars has much less gravitational force that Earth. What would happen if you went to Mars?
    5·1 answer
  • The force that keeps the planets in orbit is _____(mass)(friction)(knietics)(gravity)
    14·2 answers
  • This diagram shows a skier moving down a hill. Which statement best describes the skier? The skier has potential and kinetic ene
    5·2 answers
  • What are four aspects of society that have benefited from scientific endeavor
    15·2 answers
  • A 150 N is applied on a 20kg object to the right (horizontally). if the force of friction is 40N
    8·1 answer
  • Two harmonic sound waves reach an overseveer simulatenouslt. the obsever hears the sound intensity rise and fall with a time of
    10·1 answer
  • Explain how height,acceleration,and speed would affect the movement of a roller coaster​
    12·1 answer
  • Can you rule out natural factors as the main cause of today's climate change?
    10·1 answer
  • 1 Find the acceleration of an object if there is a force of 20 newtons in one direction and 10 newtons in the opposite direction
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!