A sledgehammer of mass m = 1.9 kg falls freely vertically downward from a height of h = 2.6 m at an initial speed of v = 11 m/s before striking a partially buried piling. After the blow the piling has moved d = 0.075 m deeper.How much kinetic energy, in joules, does the sledgehammer have just before striking the piling?

The thickness of the panel should be 1.82 cm.

                                                        [tex]\begin{aligned}\\\\\frac{99.2\%}{85.5\%}&=\frac{L}{1.57\,cm}\\\\L&=1.82\,cm\end{aligned}[/tex]

        https://brainly.com/question/29434481

        #SPJ4

Average force skater had experienced without breaking a bone is 3,082 N. if the impact time is 0.115 s then the average force a skater experience is increased by 3423 N and yes, the bone breaks.

The vector quantity of a force. It is a quantity with both magnitude and direction, hence. We must specify both the size and the direction of the force operating on an object in order to adequately understand it. The average force is force applied by an item travel over specific period of time at a given rate of speed, or velocity.

Given,

m₁ = 75 kg

u₁ = 10.5 m/s

V = 5.52 m/s

dt = 0.115 s

For moving skater,

Change in momentum, dp = m₁u₁ - m₁V

dp = 75 × 10.5 - 75 × 5.25

dp = 393.75

Now, average force, dp/dt = 393.75/ 0.115

dp/dt = 3423 N

For stationary skater,

Change in momentum, dp = m₂(u₁-V)

dp = 75 ×5.25

dp = 393.75

Now, average force, dp/dt = 393.75/ 0.115

dp/dt = 3423.91 N

∴ yes, the bone brakes

To know more about average force, visit:

https://brainly.com/question/24704743

#SPJ4

Answer:

Why Is Thermal Energy Important? Thermal energy offers us another source of power. Thermal energy is used in thermal power plants. Thermal energy can be efficiently stored and used as a backup power source during peak usage hours or seasonal weather power use increases.

Explanation:

The answer is yes if one uses the kinetic energy and potential energy formulas (PE = mgh and KE = (1/2)mv²) and knows that they are equal to one another (KE = PE). Greater than 3.04 m is 3.068 m.

The energy an object has as a result of motion is referred to as kinetic energy. In order to accelerate an object, we must apply force. In order to apply a force, we must work hard. The transfer of energy will cause the object to move at a new, constant speed once the work is done.

Heat energy is another name for thermal energy. A moving object has kinetic energy. Due to the fact that thermal energy is created by moving particles, it is a form of kinetic energy.

To know more about kinetic energy visit:

https://brainly.com/question/28211904

#SPJ1

When the radius between of two objects is increased by a factor of 2, the gravitational force is reduced by a factor of 4 and the radius is doubled.

Mass-containing objects are pulled toward one another by the gravitational force. We regularly think about the Earth's gravitational attraction. This force maintains your body's position on the ground. Since the gravitational force is exactly proportional to the mass of both interacting objects, heavier items will be drawn by stronger gravitational forces. As a result, as two objects' relative masses increase, so does their gravitational pull to one another.

The distance between a circle's centre and circumference is known as its radius. The diameter is always twice as large as the radius. Therefore, the diameter is multiplied by two to get the formula.

learn more about gravitational force here

https://brainly.com/question/12528243

#SPJ4

The force formula is defined by Newton's second law of motion: The force exerted by an object is equal to its mass x acceleration: F = m ⨉ a.

Using this formula, must use SI units. Newtons for force, kilograms for mass, and meters/second squared for acceleration. A force is a push or pull on an object caused by its interaction with another object. Whenever there is an interaction between two objects, there is a force acting on each object. When the interaction stops, the two objects no longer receive forces. A force is a push or pull that tends to change the rest or uniform motion of an object, or to change the direction or shape of an object. This will accelerate the object. The SI unit is Newton.

Learn more about force here-

https://brainly.com/question/13191643

#SPJ4

Answer:

Explanation:

The oil drop experiment was carried out by Robert A. Millikan and Harvey Fletcher in 1909 to measure the elemental electric charge (electron charge).

When it is given that the distance traveled by the first object before it stops is S, then the distance traveled by the second object is 2S.

The ratio of the friction force to the normal force experienced by a body moving on a dry and non-smooth surface is said as the kinetic friction coefficient, μk.

Under the high velocity conditions, kinetic friction coefficient increases with the velocity. And as velocity increases so the distance also increases.

The kinetic friction formula is given as normal × friction coefficient. So, if force is increased then the normal force is not changed, due to which the friction remains constant.

To know more about coefficient of kinetic friction, refer

https://brainly.com/question/19392943

#SPJ4

A consensus is an agreement that something is correct ( A )

Option B is incorrect because a type of science that uses observation is called as Quantitative Observation. In this a scientist records the observations of an experiment and collects data. Option C is incorrect because a theory that uses math to make predictions is called as Predictive modeling.

Option D is incorrect because a theory that will never be changed is a fact. A fact is a theory that is known or proved to be true. Option A is correct because an agreement that something is correct is a consensus. The basic meaning of a consensus is a general agreement.

Therefore, the agreement that something is correct is a consensus

To know more about consensus

https://brainly.com/question/4975908

#SPJ9

A particle starts from rest and is acted on by a net force that does work at a rate that is proportional to the time t. The speed of the particle is proportional to √t.

Work is a change in kinetic energy, it should be noted. Power will therefore be determined as follows:

Power = Work / Time = force × velocity

Work = the change in kinetic energy = 1/2 mv2

If work is proportional to time:

W = t

1/2 mv2 = t

v2 = t

v (speed) = √t

Speed is the rate and direction of an object's movement, as well as the rate and duration at which an object is moving along a path. In all other positions, speed is a scalar value while pace is a vector.

Power is inversely related to t. Because the force is constant, the velocity will be a function of t. As a result, the particle's speed is proportional to √t.

learn more about force here

https://brainly.com/question/13191643

#SPJ4

The process where a glass of water with some ice cubes becomes warm due to being kept in the window for some time will be called as melting.

In the field of science, melting can be described as a process by which a solid substance is changed into a liquid substance due to thermal energy.

Ice cubes are solid substances of water that needs low temperatures. When ice cubes are kept by a window at room temperature, it changes into liquid water due to the process of melting because room temperature is not the cold temperature that the ice cubes require.

Hence, the process by which ice cubes are changed into liquid water by warming them near a window is melting.

Although a part of your question is missing, you might be referring to this question:

Henry was having glass of water with some ice cubes in it and kept it near a window for some time. After some time, the water became warm. What is this process called?

-Condensation

-Melting

-Freezing

-evaporation

To learn more about melting, click here:

https://brainly.com/question/1079154

#SPJ4

Answer:

Explanation:

Linear disatance:

D = 50·10 = 500 m

The linear movement is zero because the start point and finish point are the same

Using the concepts of work, we got that 7000 joules is the work done by a force equivalent to the weight of 100, k, g,100kg that moves an object 200, k, m,200km in 7, point, 0, m, i, n,7. 0min.

We know very well that if we want to move any object by a certain distance then we need to do some work so that it can moves against the frictional force.

We have

The mass of an object = 100 kg

But, Force = mass × g (taking g as 10 N/kg)

Then, Force = 1000 N

Assuming we are given the distance moved by the object as 7 m

We can calculate the work done by the force

We need to know that;

Work done = Force × distance

Therefore;

Work done = 1000 N × 7 m

                  = 7000 Joules(since 1Nm=1 Joule)

Hence, the work done by a force equivalent to the weight of 100, k, g,100kg that moves an object 200, k, m,200km in 7, point, 0, m, i, n,7. 0min is 7000 Joules.

To know more about work, visit here:

https://brainly.com/question/21724760

#SPJ4

(Complete question) is:

what is the work done by a force equivalent to the weight of 100kg that moves an object in 7 minutes?​

If B is added to A and the resultant vector have a magnitude equal to A+B if the angle between vector A and b is zero or either magnitude of A or b is zero.

I A I = √ A . A

I B I= √ B . B

I A + B I = √ (A + B ) ( A + B )

I A + B I = √ AA + AB + BA + BB

I A + B I = √ I A I² + I B I² + 2 I A I I B I Cos θ   → ( 1 )

Given condition

I A + B I = I A I + I B I

I A + B I² = ( I A I + I B I )²

I A + B I² = I A I² + I B I² + 2 I A I I B I   → ( 2 )

Equating ( 1 ) and ( 2 ),

I A I² + I B I² + 2 I A I I B I Cos θ = I A I² + I B I² + 2 I A I I B I

2 I A I I B I Cos θ = 2 I A I I B I

I A I I B I ( cos θ - 1 ) = 0

So either,

I A I = 0

I B I = 0

cos θ - 1 = 0

cos θ = 1

θ = 0°

Therefore, if B is added to A and the resultant vector have a magnitude equal to A+B if the angle between vector A and B is zero or either magnitude of A or B is zero.

To know more about resultant vector

https://brainly.com/question/28188107

#SPJ9

The distance the land near hole is -0.6

As we know that the golfer hits the ball with a speed of 40 m/s at an angle of 50 degrees

so here we will have the range of the ball on the ground given as

R = v² sin2∅/g

so we will have

[tex]R =\frac{40^{2}sin(2*50) }{9.81}[/tex]

R = 160.6

So it will land at a distance of 160.6 m

so the distance from the hole is given as:

d = 160 -160.6

d = -0.6

To calculate the horizontal distance as the projectile travels Multiply the vertical height h by 2 and divide by the acceleration due to gravity g. Take the square root of the result from step 1 and multiply it by the initial projection velocity u to get the horizontal distance.

The maximum horizontal distance a baseball travels is the horizontal distance a baseball travels when returning to its initial height. An example of horizontal distance is the distance from an observer to a building, and an example of vertical distance is the height of a building. Players are given a reasonable amount of time to reach the hole and must wait an additional 10 seconds for the ball to fall into the hole. If the ball falls into the hole during this waiting time.

Learn more about A velocity here:-https://brainly.com/question/24681896

#SPJ9

The Magnitude of ball is  =  1.3 K-N.

The direction of the ball is =  -1.3 K-N , here negative sign indicates the         opposite direction.

m=0.025 kg

Impulse(p)=change in momentum

Vf = -50

Vi = 40

P = m(Vf-Vi)

P =0.25(-50-40)

p = -22.5 N-sec

Average force (F) = impulse/time

F = -22.5/0.017

F =  - 1.3*10^3 N

        or

F = - 1.3 K-N

The magnitude of the ball is = 1.3 K-N

The direction of ball is  =  -1.3 K-N , here negitive sign indicates the opposite direction.

To learn more about Force and Magnitude refer the link:

https://brainly.com/question/14062750

#SPJ1.

35 joule is the change in internal energy when a gas does 189 j of work while expanding, and at the same time it absorbs 154 j of heat.

w= -189

q=154

E=w+q

E= -189+154

E=-35 joule

Internal energy is a property or state function in thermodynamics that describes a substance's energy when capillary effects and the effects of external magnetic, electric, and other fields are not present. As with any other state function, the energy's value depends on the substance's state rather than the kind of methods employed to get there. The first law of thermodynamics states that when a system changes state as a result of a process in which only work is involved, the work is equal to the change in internal energy.

To know more about  internal energy visit : https://brainly.com/question/11278589

#SPJ4

To create a fluid weight equivalent to the weight of the object, less of a more dense fluid must be moved. The amount of displaced water won't be as great because the salt water is denser.

Freshwater is less dense than saltwater. More dense substance will be located below less dense material. When salt is dissolved in water, as it is in ocean water, the added mass of the dissolved salt increases the density of the water relative to that of the water without salt. Consequently, when the density of the fluid increases, upward Due to the increase in buoyant force, objects will float more easily in salt water. Seawater has a higher density and buoyancy than freshwater. Water that is pure is less dense.

Learn more about density here-

https://brainly.com/question/943734

#SPJ4

Acc to the responses given in the query:

Nonmetal forms a gas commonly found in our atmosphere  is chlorine (Cl, element 17)

Many of the nonmetals are gases when they are in their elemental state. Example Hydrogen, Flourine, Oxygen, and Nitrogen. (H2, N2, O2, F,and Cl2.)

A non-metallic chemical element that may create anions, acid oxides, acids, and stable hydrogen compounds. Examples include boron, carbon, and nitrogen. When compared to metals, nonmetals' electrons exhibit different behaviour. Elements with 4, 5, or 7 electrons in their outermost shell are considered non-metals. Non-metals include things like carbon, oxygen, chlorine, etc.

Metals are a type of element that typically has 1, 2, or 3 valence electrons. Metals are opaque, glossy elements that are effective heat and electrical conductors. Examples of some metals are sodium, potassium, copper, and others. The majority of metals are ductile and malleable, and they are often.

Hence, acc. to question, Nonmetal forms a gas commonly found in our atmosphere  is chlorine (Cl, element 17) .

To learn more about Nonmetal visit to the  given link

https://brainly.com/question/28650063

#SPJ4

A water-skiing instructor recommends that a boat pulling a beginning skier have a speed less than 18 miles per hour. The possible distances (in miles) that a beginner can travel in 45 minutes of practice time will be < 13.5 miles

18 miles / hour = 18 / 60 = 0.3 miles / minute

distance = speed * time

              = 0.3  * 45 = 13.5 miles

The possible distances (in miles) that a beginner can travel in 45 minutes of practice time will be < 13.5 miles

To learn more about distance here :

https://brainly.com/question/15256256

#SPJ4

a) The magnitude of the impulse delivered to your roof is 1.13 × 10^-4 Kg m / s

b) The magnitude of the average force of the impact is 0.37 N.

a) Impulse is defined as the change in moment of object . The total impulse on an object is measured from the product mass of the object and the total change in velocity of the object. Impulse is a vector quentity so it has both magnitude as well as direction (negative or positive sign). Units of impluse in S.I system , Newton seconds, or N∗s.

Mathematically , J =m× v

v --> change in velocity which is equal to final velocity of object and substracting staring velocity.

m---> mass of object

We have, mass of raindrop (m) = 0.014 g = 0.014×10⁻³kg

the speed of raindrop (v) = 8.1 m/s

putting all values in above formula we get,

J = mv = 0.014×10⁻³ × 8.1 = 0.013 × 10⁻³ kg m/s

thus, value of impluse is 0.013×10⁻³3 kg m/s

b) Average force of impact is defind as the product of mass of object by the average velocity of object over a definite time.

According to Newton's Second law of motion,

force (F) = m× a

where m---> mass of object

a----> acceleration which is equal to change in velocity with respect to time.

Now, we have given m = 0.014 ×10⁻³3 kg

time = 0.37 ms

acceleration (a) = v/t = ( 8.1 m/s )/ 0.37 ms

putting all values in above formula we get,

force = (0.014×10⁻³kg × 8.1 m/s )/0.37 ×10⁻³ s

= 0.306N ~ 0.31N

Thus, magnitude of average force of impact is 0.31 N .

To learn more about Impluse and force , refer:

https://brainly.com/question/22296861

#SPJ4

#Complete question:

A large raindrop - the type that lands with a definite splat - has a mass of 0.014 g and hits your roof at a speed of 8.1 m/s.

Part A) What is the magnitude of the impulse delivered to your roof? Express your answer with the appropriate units.

Part B) If the raindrop comes to rest in 0.37 ms, what is the magnitude of the average force of the impact? Express your answer with the appropriate units.

To learn the resistance, flashlight and terminal points.

What is flashlight?

A light bulb on a wire makes up a type of circuit that is a flashlight. Simply put, a light bulb converts the energy of moving (-) charges into light. The circuit is created by connecting the wire with the light bulb to the battery by depressing the flashlight's switch.

What is terminal?

A terminal is the place where a conductor from a part, device, or network ends. As the reusable interface to a conductor and a point where external circuits can be connected, an electrical connector at this endpoint is another type of terminal.

a)R = v/i = 1.5/0.5 = 3 ohm

R = rho*L/A

L = R*A/rho = 3*3.14*(0.0003)^2/2.8*10^-8 = 30.2 m

b)

R = 3/2 = 1.5 ohm

i = V/R = 1.5/1.5 = 1 A

so

resistance=1.5/0.54

=2.778 ohm.so,

2.778=(2.8*10^-8*l)/(0.25*3.142*(6*10^-4)^2)

=28.0558 m

b)resistance will become half=1.389 ohm

so current=1.5/1.389

=1.08 A

You need to get the resistance of the wire.

Then do V = I * R

In your book you should have a table that says how to calculate the resistance of a wire for that diameter, material, and length.

Then just plug in the values and solve for I.

1.5 = I * R

Therefore, the connecting terminals is 1.5v.

Learn more about flashlight from the given link.

https://brainly.com/question/4026955

#SPJ4

The kinetic energy with mass and speed in physics K.E. = 1/2 m v².

If the mass is in kilograms and the velocity is in meters/second, then the kinetic energy is in kilograms - meters squared/second. Kinetic energy is proportional to the square of velocity, so doubling velocity quadruples kinetic energy. The energy transferred is called kinetic energy and depends on the mass and velocity achieved.

Kinetic energy is transferred between bodies and converted into other types of energy. Equations of motion are a set of equations that describe the motion of an object with constant acceleration. Equations of motion require knowledge of derivatives rates of change and integrals.

Learn more about Kinetic energy here:-https://brainly.com/question/25959744

#SPJ4

If four negative charges of a magnitude of -6 nc each form a square, 12 cm on a side, the magnitude of electric field at the center of the square will be zero.

E = F / q

E = Electric field intensity

F = Force

q = Charge

They will all exert equal and opposite forces at the center of the square. So the diagonal forces will be equal in magnitude and opposite direction.

Let the four forces be Fa, Fb, Fc and Fd.

E = [ Fa + ( - Fb ) + Fc + ( - Fd ) ] / q

I Fa I = I Fb I = I Fc I = I Fd I

E = 0

Therefore, the magnitude of electric field at the center of the square will be zero.

To know more about Electric field intensity

https://brainly.com/question/26446532

#SPJ4

The ratio of the resistance was found to be 0.85013

Define resistance?

Resistance is a measure of the resistance to current flow in an electrical circuit.

The Greek letter omega () represents resistance in ohms. Ohms are named after Georg Simon Ohm (1784-1854), a German scientist who researched the link between voltage, current, and resistance. Ohm's Law is attributed to him.

the formula for calculating the resistance was R= ρ 1/s

ρal=2.65(10)^-8 mΩ

ρcu= 1.68(10)^-8mΩ

l al=15.0 m

l cu= 23.0 m

s= π(d/2)^2

d= diameter

dal=2.2mm=0.0022m

dcu= 2.0mm=0.0020m

for aluminum

Sal= π(0.0022/2)^2

=3.14(0.0022/2)^2

=3.14(0.0011)^2

=3.14(0.00000121)

=0.0000037994

for copper

scu= π(0.0020/2)^2

=3.14(0.000001)

=0.00000314

resistance of aluminum

Ral=2.65(10)^-8mΩ x 15/0.0000037994

=2.65(10)^-8 x 15/3.7994

=0.001046

resistance of copper

Rcu= 1.68(10)^-8mΩ x 23/0.00000314

=1.68(10)^-8x 7.324

=0.0012304

The ratio of the resistance = 0.001046/0.0012304

=0.85013

therefore the final ratio of the wires was = 0.85013

To learn more about resistance follow the given link: https://brainly.com/question/1364361

#SPJ4

The object that would satisfy his extravagant tastes, The globular cluster Omega Centauri.

When the core temperature reaches about 100 million degrees helium begins to fuse into carbon through a reaction known as the triple-alpha process, converting three helium nuclei into one carbon atom. This creates a lot of heat. Red giants are dying stars in the final stages of stellar evolution.

In about 5 billion years, our Sun will transform into a red giant and expand to engulf the inner planets, possibly Earth. Stars entering the red giant stage are notorious for their rapid loss of mass. As noted above, the upper layer's gravity weakens and can be ejected into space by violent events such as the initiation of a helium flash within the core.

Learn more about Extravagant tastes here:-https://brainly.com/question/21135607

#SPJ4

This person has a contact lens prescription with a power of negative 4.00 diopters and their far point with the contact lenses will be infinity because that's the goal of the lenses is to create normal vision, which has a far point of infinity.

During normal vision, the retina receives a sharply focused image. Myopia, a nearsighted condition, causes distant objects to look hazy because the centre of focus is in front of the retina. Myopia, a disease that affects many people, causes near objects to appear clear while far distant objects to appear blurry.

When you criticise someone for being myopic, it's because you find them to be incapable of seeing that their actions could have unfavourable effects. [disapproval] The government still views spending with myopia. More Synonyms for myopia include narrow-minded, short-sighted, and unimaginative.

If the cornea, which is the transparent front surface of the eye, is overly curved or the eyeball is too long, myopia will result. As a result, distant objects appear blurry when light enters the eye.

Learn more about contact lens:

https://brainly.com/question/12966749

#SPJ4

Answer:

Explanation:

Given:

m = 66 kg

a = 2 m/s²

___________

F - ?

F = m·a

F = 66·2 = 132 N

The index of refraction of the substance M = 0.45 mH. The refractive index n is the ratio of the speed of light c in a vacuum to the speed of light c' in a medium.

For the system described in the statement, the induced emf in both coils is given by. In other words, the induced emf in one coil is produced by the change in current in the other coil. It can be assumed that a current of 8.0 A belongs to the second coil and an induced emf of 3.00 V develops in the first coil. The current in the second coil turns off at 1.20 ms. Using the previous information, we know: Coil is 0.45mH.

Learn more about current here-

brainly.com/question/1296333

#SPJ4

The crate needs to put in 1000.63 Joule of work in order to shift its velocity from 0 to 6.67 m/s in the direction of 63.00 south-east.

We are aware that the definition of labor is the multiplication of the force operating in the direction of the displacement (d) and its component.

Given,

A 22 kg container is initially traveling 440 degrees west of north at a speed of 3.90 m/s.

the cosine formula was used to compute the outcome velocity.

where angle ∅ = 440 + 90 + 63 = 593°

v² = (3.90)²+(6.67)² - 2(3.9)(6.67) cos 593

v² = 59.6989 + 52.026 × 0.601

v² = 59.6989 + 31.2676

v² = 90.9665

Resultant velocity V = 9.5376

V = 9.53 m/s

To calculate the much work that must be done on the crate to change its velocity to 6.67 m/s in a direction 63.0° south of east, Because energy and labor are equivalent, the kinetic energy formula is used.

W = 1/2mv²

Where,

m = 22 kg and

v = resultant velocity = 9.53 m/s

W = 0.5 x 22 x (9.53)²

W = 1000.63 Joule

To know more about work done, visit:

https://brainly.com/question/13662169

#SPJ4