A 5 Kg mass is suspended from a spring. The spring is stretched 8 cm from equilibrium. What is the spring constant? Use g=9.8 m/s^2 to calculate the force of the load
Answers
The spring constant is:
[tex]\Large\displaystyle\text{$\begin{aligned}k &= 612.5\ \dfrac{\text{N}}{\text{m}}\end{aligned}$}[/tex]
To calculate the spring constant we must remember the law for it, the Hooke's Law:
[tex]\Large\displaystyle\text{$\begin{aligned}\vec{F} = -k\Delta \vec{x} \end{aligned}$}[/tex]
Where k is the spring constant [N/m].
So if the mass is suspended it means that its weight is equal to the elastic force (values), then we can write:
[tex]\Large\displaystyle\text{$\begin{aligned}\vec{W} = k\Delta \vec{x} \end{aligned}$}[/tex]
Therefore:
[tex]\Large\displaystyle\text{$\begin{aligned}mg &= k\Delta x \\ \\k &= \dfrac{mg}{\Delta x} \\ \\\end{aligned}$}[/tex]
Now we just have to put the values and calculate:
[tex]\Large\displaystyle\text{$\begin{aligned}k &= \dfrac{mg}{\Delta x} \\ \\k &= \dfrac{5\cdot 9.8}{0.08} \\ \\k &= 612.5\ \dfrac{\text{N}}{\text{m}}\end{aligned}$}[/tex]
I hope you liked it
Any doubt? write in the comments and I'll help you
Related Questions
Does the size of the magnetic field change with the size of the magnet?
Answers
Answer:
Not all of the time, it can also depend on the strength of the magnet.
Explanation:
say you have a small very strong magnet, that might work just as well as a large but week magnet.
If you increase the frequency of a sound wave four times, what will happen to its speed?
O A.
The speed will increase four times.
О В.
The speed will decrease four times.
OC. The speed will remain the same.
D.
The speed will increase twice.
O E.
The speed will decrease twice.
Answers
If you increase the frequency of a sound wave four times, the speed will increase four times. The correct option is A.
What are sound waves?Particles that are vibrating make up sound waves. These collide with other particles, causing them to vibrate, which allows the sound to escape the source.
Your ear drums vibrate as a result of air vibrations, which allows you to perceive sound. This vibration is transformed into messages, which proceed to your brain via a nerve.
When sound is produced, air molecules shake and collide, causing vibrations to travel between air molecules. The sound is transmitted by the vibrating particles, which also cause the ear drum to vibrate.
A sound wave's frequency can be increased four times without increasing its speed.
Thus, the correct option is A.
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describe the Pascal's principles
Answers
Explanation:
Pascal's principle, also called Pascal's law, in fluid (gas or liquid) mechanics, statement that, in a fluid at rest in a closed container, a pressure change in one part is transmitted without loss to every portion of the fluid and to the walls of the container.
I’ll name u BRAINLIEST if u get this right
Answers
v = 0.01 * 500 - 2 * 1.4 / 0.01
v = 220 m/s
What are some examples from regular life that support the claim that gravitational interactions are are attractive and depend on masses
Answers
Answer:
The force that holds the gases in the sun.
The force that causes a ball you throw in the air to come down again.
The force that causes a car to coast downhill even when you aren't stepping on the gas.
The force that causes a glass you drop to fall to the floor.
Explanation:
Hope, these examples may help you
What does saliva begin to break down in the mouth?
answers QUICK I will make you brainst !
Answers
An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.
football player A has a mass of 110 kg is running on the field is velocity of 2 m/s football player B has a mass of 120 kg and a stationary what if football player a collage of the football player babe what is the total momentum after the collision
Answers
Complete Question:
Football player A has a mass of 110 kg, and he is running down the field with a velocity of 2 m/s. Football player B has a mass of 120 kg and is stationary. What is the total momentum after the collision?
Answer:
Total momentum = 220 Kgm/s.
Explanation:
Given the following data;
For footballer A
Mass, M1 = 110kg
Velocity, V1 = 2m/s
For footballer B
Mass, M1 = 120kg
Velocity, V1 = 0m/s since he's stationary.
To find the total momentum;
Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.
Mathematically, momentum is given by the formula;
[tex] Momentum = mass * velocity [/tex]
a. To find the momentum of A;
[tex] Momentum \; A = 110 * 2 [/tex]
Momentum A = 220 Kgm/s.
b. To find the momentum of B;
[tex] Momentum \; B = 120 * 0 [/tex]
Momentum B = 0 Kgm/s.
c. To find the total momentum of the two persons;
[tex] Total \; momentum = Momentum \; A + Momentum \; B [/tex]
Substituting into the equation, we have;
[tex] Total \; momentum = 220 + 0 [/tex]
Total momentum = 220 Kgm/s.
The total momentum after the collision will be 220 Kgm/s.Momentum is equal to its mass multiplied by its velocity.
What is momentum?The measurement of mass in motion is called momentum. Momentum is equal to its mass multiplied by its velocity. Mathematically it is given as;
Momentum = Mass x Velocity
The given data in the problem is;
m₁ is the mass of player A= 110 kg
m₂ is the mass of player B= 120 kg
v₁ is the velocity of player A= 2m/s
v₂ is the velocity of player B=0m/s
P is the total momentum=?
The momentum of player A;
[tex]\rm P_A= m_A \times v_A \\\\ \rm P_A= 110 \times 2 \\\\ \rm P_A= 220 \ Kgm/sec[/tex]
The momentum of player B;
[tex]\rm P_B= m_B \times v_B \\\\ \rm P_B= 120 \times 0 \\\\ \rm P_B= 0 \ Kgm/sec[/tex]
The total momentum is given by;
Total momentum = momentum of the player A+ momentum of the player B
[tex]\rm P= P_A+P_B \\\\ \rm P= 220+0 \\\\ \rm P=220 \ m/sec[/tex]
Hence the total momentum after the collision will be 220 Kgm/s
To learn more about the momentum refer to the link;
https://brainly.com/question/4956182
A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a constant force of 50.0 N.
How far must the student be pushed, starting from rest, so that her final kinetic energy is 350 J?
Answers
Answer:
Distance = 7 meters.
Explanation:
Given the following data;
Force = 50N
Kinetic energy = 350J
To find the distance;
We know that energy possessed by an object over a distance represents the work done by the object.
Mathematically, work done is given by the formula;
Workdone = force * distance
Substituting into the formula, we have;
350 = 50 * distance
Distance = 350/50
Distance = 7 meters.
Calculate the weight of a boy of mass 67kg on Earth if gravity = 10m/s/s.
Answers
67*10=670N
67*9.81=657.27N
If 2.2 lbs = 1.0 kg, and Megan Progress weighs 130 lbs, what is her weight in newtons?
(F= ma). where acceleration due to gravity is 9.8 m/s2
Answers
Answer:
Force = 2802.8 Newton
Explanation:
Given the following data;
Mass = 130 lbs
But, 2.2 lbs = 1.0 kg
130 lbs to kg = 130 * 2.2 = 286 kg
Acceleration due to gravity = 9.8m/s²
To find the force in Newton;
Force = mass * acceleration due to gravity
Force = 286 * 9.8
Force = 2802.8 Newton
Which kind of body has a nucleus, coma, and tail?
A.comets
B.stars
C.meteors a
D.steroids
Answers
Explain why white light splits up into the different colours when it goes through a prism
Answers
Answer:
Light splits up into different colors because of the electromagnetic spectrum which makes the light bend, wavelength, and it makes different colors by it :3
Explanation:
:3
A 10 N force and a 30 N force act on an object in opposite directions. What is the net force on the object? Sketch a free body diagram of the object
Answers
Answer:
[tex]Net_{F}[/tex] = 30N - 10N = 20N
Please mark as brainliest!
It is appreciated hope this helps!
Explanation:
I have put what a simple free body force diagram that you would need for this question below!
Just swap out the 5N and 3N with 30N and 10N :)
Force is a vector quantity hence the net force on the object is 20N.
There are generally two categories of quantities in physics; Vector quantities and scalar quantities.
Vector quantities have both magnitude and direction while scalar quantities have only magnitude and no direction. The direction of a vector quantity is as important as its magnitude. Force, velocity and displacement etc are vectors while mass, temperature, distance etc are scalars
We must take cognizance of the fact that the two forces act in "opposite" directions.
In which case, the net force on the object is; 30 N - 10 N = 20 N
The free body diagram of the object is attached to this answer.
Learn more: https://brainly.com/question/13322477
What is the vertical motion of an object?
Answers
Answer:
Vertical motion is the movement of an object in a straight line.
When an object is thrown up, it always comes down, as it is affected by the acceleration due to gravity. This is called as vertical velocity.
How does wavelength affect radio waves?
Answers
Answer: what are the answers
Explanation:
Answer:
Radio waves have the longest wavelengths in the EM spectrum, according to NASA, ranging from about 0.04 inches (1 millimeter) to more than 62 miles (100 kilometers). They also have the lowest frequencies, from about 3,000 cycles per second, or 3 kilohertz, up to about 300 billion hertz, or 300 gigahertz
Explanation:
Louisa found that she could melt 150g of lead at 3275 C. At what temperature could she melt 75g of lead?
Answers
A wedge makes work easier by ___.
Answers
Answer:
by increasing the force applied to the objects
Where on Earth might you find these conditions?
Answers
Describe the physical properties of stars and how they relate to the Hertsprung-Russell diagram.
write like 4 sentences
Answers
Answer:
Explanation:The Hertzsprung-Russell Diagram is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature and evolutionary stage. Stars in the stable phase of hydrogen burning lie along the Main Sequence according to their mass.
hoped this helped
Can anyone explain
if knows
Answers
Answer:
Sry I’m just trying to get my points :(
Explanation:
Better luck nest time I would help if I was smart enough but currently I’m as d u m b as a rock...
Answer:
hi
Explanation:
When the sun, the moon, and the Earth line up during a new moon, which of the following is produced?
low tide
high tide
spring tide
neap tide
Answers
Answer:
neap tide i think or high tide
Drawbacks to which energy source include build up of silt or disruption of salmon migration?
es
A)
Nuclear energy
B)
Geothermal energy
C
Photovoltaic cells
D)
Hydroelectric power
Answers
CHECK MY Second post
Answers
Answer:
I dont get it
Explanation:
PLEASE HELP...How much power is done when you exert 30J of Work over 5 seconds?
Answers
May Help:
In classical physics terms, you do work on an object when you exert a ... to do work (follow the kinetic and potential energy links for a more in ... runs twice as powerfully as the runner that finishes in 5 hours. The unit of power is joules per second or J/s when work is measured in joules and time in seconds.
Flexibility training helps reduce the range of motion of your joints and muscles.
True or false
Answers
A simple machine can change the direction of a force.
O True
O False
Answers
☁️ Answer ☁️
annyeonghaseyo!
Your answer is:
True.
Several simple machines change the direction of the applied force. These include lever, fulcrum and the pulley.
Hope it helps.
Have a nice day hyung/noona!~ ￣▽￣❤️
The relationship between kinetic energy and speed is ________ proportional
Answers
The relationship between kinetic energy and speed is directly proportional.
The given problem is based on the Kinetic energy. The energy possessed by any object by virtue of its motion is known as kinetic energy of an object. The mathematical expression for the kinetic energy is given as,
[tex]KE = \dfrac{1}{2}mv^{2}[/tex]
Here,
m is the mass of object.
v is the speed of object.
the mass of any object remains constant. Then, the kinetic energy is given as,
[tex]KE \propto v^{2}[/tex]
Thus, we can conclude that the kinetic energy is directly proportional to the square of speed of object.
Learn more about the kinetic energy here:
https://brainly.com/question/17858145
True or false? When an object deforms, the change of shape is always permanent.
false
true
Answers
even if u dont know the right answer can someone just give me an answer that looks right
Answers
Answer:
The answer is elastic
Explanation:
hope this helps!
Una carga eléctrica de 120 Coulomb pasa uniformemente por la sección transversal de un hilo conductor durante un minuto. La intensidad de la corriente eléctrica que circula en ese conductor es
Answers
Answer:
I = 2 A
Explanation:
Electric current is defined as the amount of face per unit of time
I = Q / t
where Q is the charge and t is the time
let's reduce the time to the SI system
t = 1 min (60s / 1 min) = 60 s
let's calculate
I = 120/60
I = 2 A