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
tatiyna
3 years ago
8

How does an inclined plane affect the effort needed to move a load vertically?

Physics
1 answer:
VashaNatasha [74]3 years ago
5 0

If we pull an object vertically upwards then we need to apply a force which is equal in the magnitude of the weight of the object

F = mg

now when we pull the same object upwards along an inclined plane with angle then we require a force which will balance the component of weight along the inclined

so it is given as

F' = mgsin\theta

so as if we compare the two forces we can say that since the value of sine is always less than 1 for an angle less than 90 degree

so in the 2nd case when we pull the object along the inclined plane it will require less effort

so correct answer is

<em>A. reduce effort</em>

You might be interested in
Arrange the planets from strongest magnetic field to weakest magnetic field. Jupiter Earth Venus
Karo-lina-s [1.5K]

The planets from strongest magnetic field to weakest magnetic field is Jupiter > Earth > Venus.

Magnetic fields are generated by the movement of magnetic material located in side the planet, usually at the core.

Jupiter, the biggest planet in our planetary system, likewise has the biggest magnetic field, producing a magnetosphere bigger than the Sun. It`s magnetic field is created by its fast rotation of 9.8 Earth hours. Dissimilar to Earth, Jupiter`s magnetic field is not produced by its core yet by interaction in its external core, which comprises of liquid metallic hydrogen.

Earth's magnetic field is produced by liquid metal at the center and Earth's fast pivot of 24 hours creates enough movement of the liquid to animate a magnetic field. While Venus does not have a magnetic field, likely on account of it's slow rate at around 243 Earth days, it's as yet shielded from sun oriented breezes utilizing an alternate kind of magnetism.  

Therefore, the Jupiter have magnetic fields much stronger than that of the Earth and Venus.  


4 0
3 years ago
Read 2 more answers
I need some help as soon as possible
EastWind [94]

8) speed

9)velocity

10)velocity

11)velocity

3 0
4 years ago
How do gases respond to changes in pressure and temperature?
kakasveta [241]
They compress or expand depending on amount of pressure or depending on the temperature
6 0
3 years ago
Read 2 more answers
A certain cable of an elevator is designed to exert a force of 4.5x 104 N. If the maximum acceleration that a loaded car can wit
meriva

Answer: 3,383.5 kg

Explanation:

from the question we were given the following

tension (T) =  4.5 x 10^4 N

maximum acceleration (a) = 3.5 m/s^2

acceleration due to gravity (g) = 9.8 m/s^2  ( it's a constant value )

mass of the car and its contents (m) = ?

we can get the mass of the car and it's contents from the formula for tension which is T = ma + mg

    T = m (a + g)

therefore m = T / (a+g)

m = (4.5 x 10^4 / ( 3.5 + 9.8 )

m = 3,383.5 kg

5 0
3 years ago
What element is created when hydrogen atoms fuse together in the sun’s core?
Lilit [14]

Answer:

It's Helium.

Explanation:

The superficial layers of the star compress the core as an effect of its own gravity. Therefore, atoms will be closer to each other in the core, allowing them to be combined.

A nuclear reaction occurs when light elements combine into heavier elements (that is known as nucleosynthesis). Different ways in which that can happen exist, but the most common in the Sun, according to its mass, is the Proton-Proton chain reaction. In that fusion reaction two atoms of Hydrogen are combined to form Helium.

Remember that a Helium atom is composed of two Protons and two Neutrons.

The Proton-Proton chain works in the following way:

^{1}H +^{1}H = ^{2}H + \nu + e^{+}

                 

Two Protons combine each other (^{1}H) and one Deuterium (^{2}H)  is gotten, and one Neutrino (\nu), and one Positron (e^{+}) are emitted from them.

       

^{2}H +^{1}H = ^{3}He + \gamma

       

A deuterium and Proton combine each other and a Helium three nucleus(^{3}He) is gotten, and a gamma ray (\gamma) is emitted.

                 

^{3}He +^{3}He = ^{4}He + ^{1}H + ^{1}H

             

Two Helium three nucleus combine and a Helium atom  (^{4}He) is gotten, and two Protons are emitted.

                       

So, when hydrogen atoms fuse together helium is created.

3 0
3 years ago
Other questions:
  • Two charged objects, A and B, exert an electric force on each other. What happens if the distance between them is increased?
    15·2 answers
  • A 17,000-kg airplane lands with a speed of 82 m/s on a stationary aircraft carrier deck that is 115 m long. find the work done b
    13·1 answer
  • A certain lightning bolt moves 10.0 C of charge. How many charges have been moved if the fundamental unit of charge is 1.6 x 10-
    12·1 answer
  • An electric current is flowing through a cord what will happen if a magnet is brought near the cord
    11·1 answer
  • I have 2 questions
    11·1 answer
  • A mass on the end of a spring undergoes simple harmonic motion. At the instant when the mass is at its maximum displacement from
    11·1 answer
  • A substance has a density of 13.5 g/cm3. What is the volume of a 50 g block of this substance?
    11·1 answer
  • When is the only time that an object has no gravitational potential energy
    5·2 answers
  • what kind of mathematical relationship do you predict wll exist between velocity and number of filters
    15·1 answer
  • EX 6-1 A ball is twirled on a 0.870 - m-long string with a constant speed of 3.36 m / s . Calculate the acceleration of the ball
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!