please someone should help me and solve this is under Hooke's law ​

Please Someone Should Help Me And Solve This Is Under Hooke's Law

Answers

Answer 1

[tex]F=k(l_1-l_2)[/tex]

[tex]10=5k[/tex]

[tex]k=2[/tex]

[tex]15=2*(30-l_2)[/tex]

[tex]15=60-2l_2[/tex]

[tex]2l_2=45[/tex]

[tex]l_2=22,5cm[/tex]


Related Questions

Using your knowledge of momentum explain why cars are designed to have crumple zones?

Answers

Answer: I think cars are designed to have crumble zone because lets say you're going 60-70 mph and you hit a brick wall that cant move, it would be a very hard jolt causing the beings inside to get thrown forward, but if it has a crumble zone it would slow the the jolt from is slowing down in the hit.

Jeremy ran a race at a speed of 15 m/s in a time of 8 seconds. Calculate the distance he ran.

Answers

Answer:

120 m/s if m/s means miles per second than

Explanation:

15 × 8

Answer:

d = 120 m

Explanation:

Data:

Speed (s) = 15 m/sTime (t) = 8 sDistance (d) = ?

Use the formula:

d = s * t

Replace with the data, and solve:

d = 15 m/s * 8 sd = 120 m

The distance is 120 meters.

Greetings.

Please if someone knows the answer please help

Answers

Negative about the way you are doing Enter is a good night for me

How do I calculate the moment of force? Please answer as soon as possible

Answers

Moment of force = F x d . Here d is the distance from the fixed axis, Moment of force is expressed in newton meter (Nm). Moment of force formula can be applied to calculate the moment of force for balanced as well as unbalanced forces.

the magnetism of a permanent magnet results from __________.

Answers

Answer:

Explanation:

The magnetism of a permanent magnet results from the magnetic moments of electrons in the material making up the magnet interactions with Earth's magnetic field the magnetic moments of nuclei in the material making up the magnet electric currents inside the magnet.

Identify some sports or activities you can do to improve your overall health and explain how physical activity can improve your

Answers

Answer:

soccer

Explanation:

soccer can inprove your health because you use all parts of your body playing it. You use your legs because you are running and you use your arms for doing throw ins. Soccer is also good for you because you are not playing for too long. Usually one soccer game is only 1 hour.

Hope this helps

NEED HELP!!!! 10 POINTS!!!

When you feel short of breath, what is actually going on in your body?
A.
Your lungs are full to capacity.
B.
Your muscles are about to collapse.
C.
Your heart stops beating just for a second.
D.
Your body is not getting enough oxygen throughout.

PLEASE NO LINKS

Answers

I think the answer is C, your heart stops beating for just a second.

An object is known to have balanced forces on it. Which of the following would be a true statement?

Answers

If an object has a balanced force on it, there is a possibility that the object may be in a position i.e. there is no change in speed and direction of the body.

If the forces acting on an object is balanced, it means that the net force acting on the body is zero.

According to Newton's law of motion, an object will continue in a state of motion in a straight line unless acted upon by an external force.

This external force might be a balanced or unbalanced force. Hence if an object has a balanced force on it, there is a possibility that the object may be in a position i.e. there is no change in speed and direction of the body.

Learn more here: https://brainly.com/question/20835245

HELP PLEASE!!!! 20 POINTS

Answers

It c Ven dos veces al día antes del ascensor.

Answer:

You are correct the answer is D

Brainliest will be appreciated thank you!

If the mass of an object is 176 and Net force is 50, what would be the Acceleration?

Answers

Answer:

0.28m/s²

Explanation:

Force = mass•acceleration

F = m•a

50 = 176•a Divide both sides by 176:

50/176 = a ≈ 0.28 m/s²

please help the picture is above !

Answers

Answer:

its C- 20

Explanation:

Explain how the basic unit are combined to give the derived units of force, velocity, pressure and work

Answers

Velocity:

Velocity is change in displacement with respect to time:

[tex]\frac{\Delta x}{\Delta t}[/tex]

Analysing the units, meters (displacement) and seconds (time) are basic units:

[tex]\frac{m}{s}[/tex]

Therefore the unit of velocity is m/s

Force:

Newton's second law of motion:

[tex]F = ma[/tex]

Kilogram (mass) is a basic unit, and accelerations unit can be found using the equation:

[tex]a=\frac{\Delta v}{\Delta t}[/tex]

Analysing the units:

[tex]\frac{\frac{m}{s}}{s}=\frac{m}{s^2}[/tex]

Therefore, the unit of force is:

[tex]kg\frac{m}{s^2}[/tex]

Pressure:

Pressure is given by the equation:

[tex]P=\frac{F}{S}[/tex] where S is area of effect, F is force

Area for a basic rectangle (geometric shape is arbitrary for dimensional analysis) is found by multiplying two lengths:

[tex][l^2]=m^2[/tex], the unit of area

Dividing the aforementioned unit of force by the unit of area:

[tex]\frac{kg\frac{m}{s^2}}{m^2}=\frac{kg}{ms^2}[/tex], the unit of pressure

Work:

Work is given by the equation:

[tex]W=\vec{F}\cdot \vec{x}[/tex], (dot product may be assumed as normal multiplication for the purposes of unit analysis)

Knowing displacement's (x) unit is m:

[tex][W]=\frac{kgm}{s^2}m=\frac{kgm^2}{s^2}[/tex], the unit of work.

Three forces act simultaneously on poin J. One force is 10.0 N north; the second is 15.0 N west; the third is 15.0 N 30.0° east of north. Determine the magnitude and direction of the resultant force.​

Answers

The magnitude and direction of the resultant force are 10.0N and 101.36⁰

The sum of force along the force horizontal is expressed as:

[tex]\sum F_x=-15.0N+15cos30\\\sum F_x = -15.0N + 12.99N\\\sum F_x = -2.01N[/tex]

The sum of force along the vertical is expressed as:

[tex]\sum F_y = +10N[/tex]

Calculate the magnitude of the force:

[tex]F=\sqrt{(\sum F_x)^2+(\sum F_y)^2} \\F=\sqrt{(-2.01)^2+(10)^2} \\F=\sqrt{104.0401}\\F= 10.2N[/tex]

Hence the magnitude of the resultant force is 10.2N

Find the direction

[tex]\theta = tan^{-1}\frac{y}{x}\\ \theta = tan^{-1}\frac{10}{-2.01}\\\theta =tan^{-1}(-4.9751)\\\theta =-78.63^0\\\theta = 180-78.63 = 101.36^0[/tex]

Hence the magnitude and direction of the resultant force are 10.0N and 101.36⁰

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A car, travelling at a speed of 30 m/s in a straight line, brakes and decelerates at a uniform rate of 2 m/s2. How much further does it travel before coming to rest?

Answers

Answer:

You are finding acceleration, so it would be 15 m/s2

Explanation:

30 divided by 2

What is the equation for the force of a spring

Answers

Answer:

F=-kx

Explanation:

yan lang po ang alam ko

Question pictured below

Answers

I think it might or could be 3

Math the words in the box with the sentences below.

Answers

In order of appearance on the table;

Magnetic force

Normal force

Gravity

String force

Friction

Contact force

Tension

Non Contact force

Static force

Applied force

please mark BRAINLIEST if I'm right.

difference between horizontal and vertical motions

Answers

Answer:

This is to say that the vertical velocity changes by 9.8 m/s each second and the horizontal velocity never changes. This is indeed consistent with the fact that there is a vertical force acting upon a projectile but no horizontal force.

Explanation:

if a person with a mass of 70kg is standing on scale in an elevator when the cable snaps, what will the reading on the scale be during free-fall?

Answers

Answer:

The reading will be the same.

Explanation:

Mass does not depend upon anything and it remains the same anywhere. What changes is the weight of the body because it depends upon gravity and is different at different places.

Giving me the brainest will be helpful.

The reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.

What is a weighing scale?

A weighing scale known as a balance is a device used to quantify weight or mass. The classic scale is made up of two plates or bowls that are suspended at equal distances from a fulcrum.

A person with a mass of 70kg is standing on a scale in an elevator suddenly the cable snaps, The reading on the scale during free-fall will be the same as the initial elevator condition.

Hence the reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.

To learn more about the weighing scale refer to the link;

https://brainly.com/question/19340483

what phase change occurs as the substance at .75 atm is heated from 0 C to 25 C

Answers

phase change occurs when the liquid and gas states are in equilibrium with ... is the boiling point of bromine when the external pressure is 75 kPa? Do 50°C.


Use the picture to answer the question.
Name at least three physical properties of the bowling
ball.
1

Answers

Answer:

I need the picture to amswer the question thay's why it says " "

i NEED THE RIGHT ANSWER FOR THIS ASAP NO LINKS !!!

Answers

Answer:

it is the dependent since it keeps changing over time get it :)

Explanation:


True or False: the longer the hail stone is
kicked around by updrafts the larger it
gets.

Answers

こんにちは人々

False‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ 

A 755 N force is used to push a 15 Kg box across the floor. What is the acceleration of the box?

Answers

Answer:

a = 151/3 m/s²

General Formulas and Concepts:

Forces

Newton's 2nd Law of Motion: F = ma

F is force (in N)m is mass (in kg)a is acceleration (in m/s²)

Explanation:

Step 1: Define

Identify variables

F = 755 N

m = 15 kg

Step 2: Solve for a

Substitute in variables [Newton's 2nd Law of Motion]:                                 755 N = (15 kg)aIsolate a:                                                                                                            a = 151/3 m/s²

Topic: AP Physics 1 - Algebra Based

Unit: Forces

A ball Of Mass. 0.5 kg initially at rest is kick directly toward offense from appoint 20 m away as shown below the velocity of the ball as it leaves the kickers foot is 16 M/S at angle 45 degrees above the horizontal the top of the fence is 4 m high the ball hits nothing Wallen flight and a resistance is negligible the acceleration due to gravity is 9.8 M/S^2 determine the time it takes for the ball to reach the plane of the fence.

Answers

Answer:

a. The horizontal component of the velocity is constant so vxt = d where vx = v0 cosθ = 16m/s t = d/v = 2s

b. The height of the ball during its flight is given by y = v0yt + ½ gt2 where v0y = v0sinθ = 12m/s and g = –9.8m/s2 which gives at t = 2s, y = 4.4m. The fence is 2.5m high so the ball passes above the fence by 4.4m – 2.5m = 1.9m

Explanation:

Using parallax, what is the distance to the
farthest stars you can measure?

Answers

Parallax angles of less than 0.01 arcsec are very difficult to measure from Earth because of the effects of the Earth's atmosphere. This limits Earth based telescopes to measuring the distances to stars about 1/0.01 or 100 parsecs away.

why is the saturated lapse rate less than the dry adiabatic lapse rate?

Answers

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Explanation:

Lifting a saturated package causes it to expand and cool, resulting in vapour condensation. Condensation will release latent heat, partially counteracting the cooling. As a result, a saturated parcel's adiabatic lapse rate is smaller than an unsaturated parcel's.

Because moist air ascending condenses off its water vapour, the moist adiabatic lapse rate is lower than the dry adiabatic lapse rate (once saturation is attained). The air is considered to be saturated when the dew point temperature and air temperature are identical.




is my answer correct?,


“gains electric potential energy”




if not, what’s the correct one?




pls help

Answers

sometimes you just gotta take some risks in life. go with that answer

Why do we use silk threads to suspend charged rods instead of metallic threads?

Answers

Answer:When you rub the glass rod with the silk, the rod charges positive. If you place a charged rod on one of the swivel stands, and then bring another charged

Explanation: i no it

What is electric magnetism?

Answers

Answer:

the physical phenomenon produced by moving electric charge

Explanation:

Answer:

a maget can attract if n+s=con,not n+n=con or s+s=con

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