k=100N/m, alungirea delta l=10cm, calculati forta elastica

If the simple machine reduces the amount of force, what must be increased the size of the simple machine.

A force in physics is an effect that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

An object that transfers and alters force is a machine. Machines come in a variety of forms, such as incline planes, levers, wheel and axles, pulleys, and gears. • The mechanical advantage provided by a machine is the same as the output force. divided by the input force (load)

If the simple machine reduces the amount of force, what must be increased the size of the simple machine.

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Answer: F=ma

Explanation:

Answer:

its c i just did the test

Explanation:

Answer:

New kinetic energy = 12 times of the initial kinetic energy.

Explanation:

The kinetic energy of an object is given by :

[tex]K=\dfrac{1}{2}mv^2[/tex]

Where

m is mass of the object

v is speed of the object

ATQ,

If the mass of the object is tripled, m' = 3m

Speed is doubled, v' = 2v

New kinetic energy will be:

[tex]K'=\dfrac{1}{2}m'v'^2\\\\K'=\dfrac{1}{2}\times 3m\times (2v)^2\\\\=\dfrac{1}{2}\times 3m\times 4v^2\\\\=12\times \dfrac{1}{2}mv^2\\\\K'=12\times K[/tex]

So, the new kinetic energy will become 12 times of the initial kinetic energy.

Answer:

0.9s

2592km/hr

Explanation:

Given parameters:

Final velocity of the bullet  = 720m/s

Distance covered  = 324m

Unknown:

Time for the bullet to strike a target = ?

Velocity in km/h

Solution:

To solve this problem, we use the kinematics equation shown below:

     S  =( [tex]\frac{v + u}{2}[/tex]) t

So;

        324  = [tex]\frac{720 + 0}{2}[/tex]  t

        324  = 360t

           t  = 0.9s

B. to convert this velocity to km/hr

       1000m  = 1km

       3600s  = 1hr

  720 x m x [tex]\frac{1}{s}[/tex]  x [tex]\frac{1km}{1000m}[/tex]  x [tex]\frac{3600s}{1hr}[/tex]    = 2592km/hr

Answer:

he did twice as much since the first student carried the backpack for 1 mile whilst the second one carried it for 2 miles

Explanation:

Answer:

2miles-1mile

the second person carried the for one mile longer.

So as your sentence you would sat

Compared to the first person the second person carried the backpack one mile longer.

Answer:

In a transverse wave.ok now u know

Answer:

736.2

Explanation:

Work = mass * gravity * height

W = m * g * h

W = 6.26 * 9.8 * 12

W= 736.176 Joules

Rounding to 736.2.

Answer:

the tides would be twice as big as they are now and the world would flood

Explanation:

The tides would be twice as massive as currently if moon was twice as massive  it is currently.

The tidal force is a gravitational effect that stretches a body along a line towards the center of mass of another body due to a gradient in the gravitational field from the other body.

A body stretches as a result of this disparity. As a result, in addition to being a byproduct of the gravitational field, the tidal force is also referred to as the differential force.

The nearest side is pulled more strongly than the farthest side because the gravitational field imposed on one body by another is not consistent across its portions.

As tidal force is a kind of gravitational force, it linearly depends on the mass of the moon. So, the tides would be twice as massive as currently if moon was twice as massive  it is currently.

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Answer: 0

Explanation: Work is force times displacement so although you're exerting a force on the chair since your not moving there is no displacement and anything times a value of zero is zero

Answer:

Second Option

Explanation:

The "hard drive" or the second option is one of the main components of storing information on a computer. You already have a hard drive built into your computer, or laptop when you buy it, and you can buy additional hard drives in the form of plugins that can store even more data if your original hard drive becomes full of data.

Hope this helps.

Answer:

B

Explanation:

Whereas memory refers to the location of short-term data, storage is the component of your computer that allows you to store and access data on a long-term basis. Usually, storage comes in the form of a solid-state drive or a hard drive.

Answer:

lícita; de navegar y comerciar; de peticionar a las autoridades; de entrar, permanecer, transitar y salir del territorio argentino; de publicar sus ideas por la prensa sin censura

nice, hey could u look at my recent question

Answer:

6 g/mL

Explanation:

given:

mass = 150g

volume = displaced volume of water = 25 mL

recall that density = mass / volume

density = 150g / 25 mL = 6 g/mL

Answer:

a = 30 [m/s²]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration. In this way, we have the following equation.

∑F = m*a

where:

m = mass = 2.5 [kg]

a = acceleration [m/s²]

F = force = 75 [N]

Now replacing:

[tex]75=2.5*a\\a=75/2.5\\a=30[m/s^{2} ][/tex]

Answer:

2 minutes

Explanation:

From the graph, it takes 2 minutes for the piece of ice to go to the completely liquid phase.

Answer:

The energy a spring has by being compressed.

Explanation:

Potential energy is stored energy, whereas kinetic energy is the energy of moving things.

Answer:

49 meter per second is the speed of the baseball

Explanation:

thank me later

Answer:

for an example

Explanation:

the swing is briefly motionless. It has the greatest potential energy, because it is highest above the surface. while me and a friend thats when kinetic energy comes

and kinetic energy is when me and my friend would swing down at the same speed with a movement of greatness

Answer:

true

Explanation:

this is because potienal energy is energy that is stored, and kinetic is energy being used, as kinetic is used, potential is also being used.

Answer:

m= 245cm³×2400kg/cm³

=588000kg

Answer:

21'8

Explanation:

Answer:

2,4,5

Explanation:

Answer:

2,4,5

Explanation:

I got it right on edge 2021

Answer:

people's reactions and perceptions to stimuli.

Explanation:

Psychophysics can be defined as the scientific study of people's reactions and perceptions to stimuli.

Stimulus can be defined as an obvious change in either the chemical or physical structure of an organism' environment (either external or internal). Thus, all living organisms (humans) respond to changes in their environment and consequently, an appropriate response or reaction is made. Also, stimulus arising from within the organism is known as internal stimulus while those from its environment are known as the external stimulus.

In organisms, the specialized cells that detect stimulus are generally known as sensory receptors while a group of these receptors is referred to as sense organ.

Hence, psychophysics is a branch of psychology and it is typically focused on determining the effects of stimuli on the mental health or processes of humans.

Answer:

study of people's reactions and perceptions to a stimulus.

Explanation:

Before the emergence of psychology, psychophysics was the more common practice. Psychophysics is the study of people's reactions and perceptions to a stimulus. For example, when you hear a bell ring, do you act startled, blink your eyes, turn your head, or do nothing? Psychophysicists were interested in people's five senses and how those senses responded to stimulation from elsewhere. Tests were administered to people to try to understand mental phenomena.Psychophysicists wanted to know what people's reactions would be. For example, if a bell rang twenty times, how well did a person hear that sound and did the person find that sound pleasant?

Answer:Minerals are naturally occurring inorganic substances, often with a crystalline structure. They are composed largely of the most abundant elements in the Earth's crust, silicon and oxygen, coupled with metals or the metallic elements of iron, calcium, sodium, potassium, and magnesium.

Explanation:Hope this helped u also may i plz have brainlist plz only if u wanna give me brainlist though. Have an great day kind sir or ma'am!

Answer:

The rocks and minerals of the Earth consist of inorganic compounds

Explanation:

An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. However, the distinction is not clearly defined; authorities have differing views on the subject. The study of inorganic compounds is called inorganic chemistry.

Ggle def of inorganic compounds ...

Answer:

a) d = r *t

Explanation:

The equivalent formula for calculating rate is given as:

                 d = r *t

Where d is the amount of substance, r is the rate and t is the time taken.

The rate of process is the amount or quantity attained per unit of time.

It is usually expressed as;

           r  = [tex]\frac{d}{t}[/tex]

So, the other variant will be d = r *t

Answer:250,000

Explanation: