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
devlian [24]
3 years ago
5

If you added enough ropes and pulleys to lift any size mass would it be possible to never have to apply a force to move your mas

s? Why or Why Not? Explain your answer using scientific terms we have been learning.
pls help!!
Physics
2 answers:
tatiyna3 years ago
7 0

Answer:

we have to apply force to move something things wants to save their position and if we want to change it

we have too apply force

Ira Lisetskai [31]3 years ago
3 0

Answer:

we have to apply

them to have a answer

You might be interested in
Please help me with this and if I have good answer u will be marked as brilliant !!!!
AysviL [449]
Number one- numbers of items sold. Number two- Thursday and Friday. Number three- 1,200. Number four-150
3 0
3 years ago
A crate rests on a flatbed truck which is initially traveling at 17.9 m/s on a level road. The driver applies the brakes and the
Mamont248 [21]

Answer:

The minimum coefficient of friction required is 0.35.  

Explanation:

The minimum coefficient of friction required to keep the crate from sliding can be found as follows:

-F_{f} + F = 0      

-F_{f} + ma = 0      

\mu mg = ma

\mu = \frac{a}{g}

Where:

μ: is the coefficient of friction

m: is the mass of the crate

g: is the gravity

a: is the acceleration of the truck

The acceleration of the truck can be found by using the following equation:

v_{f}^{2} = v_{0}^{2} + 2ad

a = \frac{v_{f}^{2} - v_{0}^{2}}{2d}

Where:  

d: is the distance traveled = 46.1 m

v_{f}: is the final speed of the truck = 0 (it stops)      

v_{0}: is the initial speed of the truck = 17.9 m/s

a = \frac{-(17.9 m/s)^{2}}{2*46.1 m} = -3.48 m/s^{2}        

If we take the reference system on the crate, the force will be positive since the crate will feel the movement in the positive direction.  

\mu = \frac{a}{g}  

\mu = \frac{3.48 m/s^{2}}{9.81 m/s^{2}}

\mu = 0.35

Therefore, the minimum coefficient of friction required is 0.35.  

I hope it helps you!

4 0
3 years ago
In which ancient civilization did the sport of cucj originate
Burka [1]
It originated in China.
3 0
3 years ago
A marble rolling at a speed of 2 meters per second falls off the end of a 1-meter high table. How long will the marble be in the
irga5000 [103]

<span>t^2 = 1/4.9 </span>
<span>t = 0.45 sec 
 answer:</span><span>1 - 4.9t^2 = 0 </span>
8 0
3 years ago
an electrically charged particle with mass m, velocity v, and charge q moves in a circle in magnetic field b. what is the formul
kolbaska11 [484]

Answer:

r=\frac {mv}{qb}

Explanation:

In this case,  since the charged particle moves in circular motion,  the centripetal force is equivalent to the magnetic force.

\frac {mv^{2}}{r}=qvb\\\frac {mv}{r}=qb\\r=\frac {mv}{qb}

5 0
3 years ago
Other questions:
  • Three uses of laser technology
    7·1 answer
  • Carbon-14 has a half-life of 5,730 years. if the age of an object older than 50,000 years cannot be determined by radiocarbon da
    8·2 answers
  • I want to answer these questions about vectors
    13·1 answer
  • What is the independent variable? What is the dependent variable? Please help!
    7·1 answer
  • The fastest possible conduction velocity of action potentials is observed in ________.
    7·1 answer
  • The genetic material of the new bacteria is usually
    11·1 answer
  • A person weighs 60 kg. The area under the foot of the person is 150 cm2. Find the pressure exerted on the ground by the person.
    8·1 answer
  • Which unit of measure is the correct SIunit to use in measuring the mass of a boulder?
    10·2 answers
  • Please help me, anybody?
    5·2 answers
  • What is the affect of density of air in the velocity of sound?? ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!