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
Vinvika [58]
3 years ago
12

. When using straight ladders, the base of the ladder should be _____ away from the wall or other vertical surface for every ___

__ of height to the point of support.
Physics
2 answers:
nalin [4]3 years ago
8 0
<h3><u>Answer;</u></h3>

one foot; four feet

<h3><u>Explanation</u>;</h3>
  • When using straight ladders, the base of the ladder should be <u>one foot</u> away from the wall or other vertical surface for every <u>four feet</u> of height to the point of support.
  • The Four-to-one rule ladder safety requires that for every four feet of height climbed, move the base one foot away from the wall.
  • <em><u>It is always important to remember the 4-to-1 rule for ladder safety so as to avoid home improvement injuries.</u></em>

guapka [62]3 years ago
3 0

one foot; four feet is the answer

You might be interested in
soaring birds and glider pilots can remain aloft for hours without expending power. Discuss why this is so.
vekshin1

Answer:

Since their wings and body develop the drag. When there is warm air then they expand their wings. Since,soaring birds and glider pilots have no engine, they always maintain their high speed to lift their weight in air for hours without expending power by convection

Explanation:

5 0
3 years ago
How many non square lie be 2² and 3²?​
erastovalidia [21]

Answer:

on

Answers

Related Questions

How many non-square numbers lie between the squares of 12 and 13?

Answer

VerifiedVerified

96.3k+ views

12.3k+ likes

Hint: Here, we can see that 12 and 13 are consecutive numbers. So, all numbers between squares of 12 and 13 are non-square numbers. Therefore, first find squares of 12 and 13 and then subtract square of 12 from square of 13, we get numbers of non-square numbers. At the last subtract 1 from the result obtained as both extremes numbers are not included.

Complete step-by-step answer:

In these types of questions, a simple concept of numbers should be known that is between squares of two consecutive numbers all numbers are non-square numbers. Also one tricky point should remember that whenever we find the difference between two numbers we get a number of numbers between them including anyone of the extreme numbers. So we subtract 1 to exclude both extreme numbers.

Square of 12 = 122=144 and square of 12 = 132=169

As 12 and 13 are consecutive numbers so all numbers between their squares will be non-square numbers.

Therefore, 169 – 144 = 25

Total number of numbers between 169 and 144 (i.e., excluding 144 and 169) = 25 – 1 = 24.

Explanation:

Brian least po please

7 0
2 years ago
How long (in seconds) does it take a car accelerating at 3.1 m/s2 to go from rest<br> to 51 m/s?
Nesterboy [21]

Answer:

 t  = 16.5s

Explanation:

Given parameters:

Acceleration = 3.1m/s²

Initial velocity  = 0m/s

Final velocity  = 51m/s

Unknown:

Time taken  = ?

Solution:

To solve this problem we need to reiterate that acceleration is the rate of change of velocity with time.

So;

        Acceleration  = \frac{v  - u }{t}  

v is the final velocity

u is the initial velocity

t is the time taken

  So;

       3.1  = \frac{51 - 0}{t}  

    3.1t  = 51

       t  = 16.5s

8 0
3 years ago
Which statement is true about a planet’s orbital motion?
lana66690 [7]

Answer:

Orbital motion results when the object’s forward motion is balanced by a second object’s gravitational pull.

Explanation:

The gravitational force is responsible for the orbital motion of the planet, satellite, artificial satellite, and other heavenly bodies in outer space.

When an object is applied with a velocity that is equal to the velocity of the orbit at that location, the body continues to move forward. And, this motion is balanced by the gravitational pull of the second object.

The orbiting body experience a centripetal force that is equal to the gravitational force of the second object towards the body.

The velocity of the orbit is given by the relation,

                                    V = \sqrt{\frac{GM}{R + h} }

Where

                   V - velocity of the orbit at a height h from the surface

                    R - Radius of the second object

                    G - Gravitational constant

                    h - height from the surface

The body will be in orbital motion when its kinetic motion is balanced by gravitational force.

                         1/2 mV^{2} = GMm/R

Hence, the orbital motion results when the object’s forward motion is balanced by a second object’s gravitational pull.

3 0
3 years ago
Fill out the blanks, this is for science!
dusya [7]
Faster and higher I believe.
8 0
3 years ago
Read 2 more answers
Other questions:
  • What are the layers of the earth
    13·1 answer
  • Which one of the following is NOT an evidence of the Big Bang Theory? A. most objects in space are moving away from one another
    14·1 answer
  • A vertical spring stretches 3.8 cm when a 13-g object is hung from it. The object is replaced with a block of mass 20 g that osc
    13·1 answer
  • The New Horizons probe flew past Pluto in July 2015. At the time, Pluto was about 32 AU from Earth. How long did it take for com
    14·1 answer
  • The weight of object is more in the poles than the equtor of the earth.why?​
    8·1 answer
  • What was: The Big Bang (Science)<br> ANSWER FOR 10 POINTS!!
    7·1 answer
  • The 8.1 N weight is in equilibrium under the influence of the three forces acting on it. The F force acts from above on the left
    10·1 answer
  • For what reason Do meteorogists use isobars on a weather map
    7·2 answers
  • When a current of 5 amperes is run through the coiled heating element of a stove, the resistance of the element is 80 ohms. What
    5·1 answer
  • What do you mean by Potential energy.? <br><br>➢ No Palgarized content! <br><br>Thanks :D​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!