A force of 75 n is applied to a nutcracker the force of the nutcracker applies to the walnut is 262. 5 what is the mechanical advantage?

Given :

Mass of block , m = 1.35 kg .

Speed constant , k = 15 N/m .

Speed at centre , v = 34 cm/s = 0.34 m/s .

To Find :

The amplitude of oscillation .

Solution :

Now , we know total energy is conserved in SHM .

So , K.E at zero displacement :

\(K.E=\dfrac{mv^2}{2}\\\\K.E=\dfrac{1.35\times 0.34^2}{2}\\\\K.E=7.8\times 10^{-2}\ J\)

Now , this K.E is equal to maximum P.E :

\(P.E=K.E=7.8\times 10^{-2}\ J\) .

\(P.E=\dfrac{kA^2}{2}\\\\7.8\times 10^{-2}=\dfrac{kA^2}{2}\\\\A=\sqrt{\dfrac{2\times 7.8 \times 10^{-2}}{15}}\ m\\\\A=0.1019 \ m\\\\A=10.2\ cm\)

Therefore , the amplitude is 10.2 cm .

Hence , this is the required solution .

Answer:

a bachelors degree,attention to detail,problem solving skills,the ability to learn quickly

Explanation:

i just did it so its right trust me

A bachelors degree, attention to detail, problem solving skills, the ability to learn quickly.

For companies and organizations, network systems analysts manage and monitor computer hardware and software. They have a focus on network infrastructure design and evaluate system performance to make it as effective as possible.

The costs of replacing or updating the current networking equipment employed within a corporation are also researched and reported. An overview of the path of becoming a network systems analyst is shown in the graph below.

As a network systems analyst, you'll ensure the proper function of LAN (local area networks), WAN (wide area networks), Internet and intranet connections.

Therefore, A bachelors degree, attention to detail, problem solving skills, the ability to learn quickly.

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Answer:

Two fundamental concepts govern energy as it relates to living organisms: the First Law of Thermodynamics states that total energy in a closed system is neither lost nor gained — it is only transformed. The Second Law of Thermodynamics states that entropy constantly increases in a closed system.

Explanation:

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The kinetic energy of the toy car is 0.50 Joules.

Given the following data:

To find the kinetic energy of the toy car:

Kinetic energy is an energy that is possessed by a physical object or body due to its motion.

Mathematically, kinetic energy is calculated by using the formula;

\(K.E = \frac{1}{2} MV^2\)

Where:

Substituting the given parameters into the formula, we have;

\(K.E = \frac{1}{2} \times 0.25 \times 2^2\\\\K.E = \frac{1}{2} \times 0.25 \times 4\\\\K.E =0.25 \times 2\)

K.E = 0.50 Joules

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Answer:

Explanation:

The average speed of the car can be found by using the formula

\(v = \frac{d}{t } \\ \)

d is the distance

t is the time taken

From the question we have

\(v = \frac{139.2}{3.8} \\ = 36.63157...\)

We have the final answer as

Hope this helps you

The dynamical system described by the difference equation Y_t = 0.7Y_{t-1} - 100 does not converge to a specific number. Therefore, the answer is 999.

To determine the convergence of the dynamical system, we examine the behavior of the difference equation over time. In this case, the equation represents a recursive relationship where Y_t depends on the previous value Y_{t-1}.

When we solve the equation by setting Y_t = Y_{t-1}, we find that the solution is Y_{t-1} = -100 / -0.3, which is approximately 333.333... However, this value does not represent a stable fixed point because the system does not reach a steady state.

As we continue to iterate the difference equation, the value of Y will oscillate and not approach a specific number. Therefore, we conclude that Y does not converge, and the answer is 999 to indicate the absence of convergence.

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The capacitance of the oscillating LC circuit if the maximum charge on the capacitor is 1.60 μc and the total energy is 140 μj, is approximately 9.14 microfarads (μF).

To find the capacitance of an oscillating LC circuit, given the maximum charge on the capacitor and the total energy, we can use the following equations:

The maximum charge on the capacitor (Q) is related to the capacitance (C) and the maximum voltage (V) by the equation Q = C * V.

The total energy (E) stored in the LC circuit is given by the equation E = (1/2) * C * \(V^2\).

In this case, we are given the maximum charge on the capacitor (Q = 1.60 μC) and the total energy (E = 140 μJ). We need to find the capacitance (C).

From equation 1, we can rewrite it as V = Q / C and substitute it into equation 2 to solve for C:

E = \((1/2) * C * (Q / C)^2\)

140 μJ = (1/2) * C * (1.60 μC / C\()^2\)

140 μJ = (1/2) * C * (1.60 μC)\(^2 / C^2\)

140 μJ = (1/2) * 2.56 μ\(C^2 / C\)

140 μJ = 1.28 μ\(C^2 / C\)

C = 1.28 μ\(C^2\)/ (140 μJ)

C ≈ 9.14 μF

Therefore, the capacitance of the oscillating LC circuit is approximately 9.14 microfarads (μF).

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6.94 mins time will it be until there are 60 grams of the element remaining.

Given data :

F is the future amount (we want it to be 60)

P is the present amount (580 now)

r is the rate of decay per minute (27.9% = 27.9/100 = 0.279)

t is the time it takes (what we want to find)

Substituting, we get our answer to be:

F = P \(( 1 - r )^{t}\)

60 = 580 \(( 1 - 0.279 )^{t}\)

60 =  580 \((0.721)^{t}\)

0.1034 = \(0.721^{t}\)

Ln ( 0.1034) = Ln \((0.721^{t} )\)

Ln ( 0.1034)  = t x ( 0.721)

t = \(\frac{Ln(0.1034)}{Ln(0.721)}\) = 6.94

So, it is going to take about 6.94mins, rounded to nearest tenth (1 decimal), we have:  About 6.94mins

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Answer:  

C. Software Engineer

Radio waves, like all forms of electromagnetic radiation, are affected by the gravitational field of massive objects such as black holes, which have an event horizon beyond which nothing, not even light, can escape.

Radio waves are a type of electromagnetic radiation with a wavelength longer than infrared light and shorter than microwaves. Radio waves are used for communication and information transfer, and are commonly used in radio and television broadcasting, cellular communication, and satellite communication.

As radio waves approach a black hole, they are subject to gravitational redshift, a phenomenon whereby the wavelength of the wave is stretched out and its frequency decreases as it moves away from the black hole's gravitational field.

This means that the closer the radio waves get to the event horizon, the more they are redshifted, and the longer their wavelengths become.

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The equation C Vf=Vi + at is the equation for average acceleration. In this equation, Vf is the final velocity (10.9 m/s), Vi is the initial velocity (27.7 m/s), and t is the time (2.37 s). Solving for a gives the acceleration.

Acceleration is the rate of change of an object's velocity over time. It is a vector quantity that measures how quickly an object's speed or direction of travel changes. Acceleration can be caused by a variety of forces, such as gravity, friction, and thrust. Acceleration can be uniform, in which the object's velocity changes at a constant rate, or non-uniform, in which the rate of change is variable. When an object's acceleration is in the same direction as its velocity, its speed increases; when acceleration is in the opposite direction, its speed decreases. In cases of uniform acceleration, the object's velocity will increase or decrease in direct proportion to the acceleration. Acceleration is an important concept in classical mechanics, in which it is related to momentum, force, and energy.

The equation you should use to solve this problem is:

C) Vf = Vi + at

This equation is one of the kinematic equations that relates the final velocity (Vf) of an object to its initial velocity (Vi), acceleration (a), and time (t) traveled.

To solve the problem, you can plug in the given values for the initial and final velocities and the time traveled, and solve for the acceleration (a).

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The Dynamic Systems Theory (DST) of motor development proposes that developmental changes result from a complex interplay of many forces rather than from the acquisition of particular steps or stages.

The core idea of the DST is that sophisticated movements like walking do not appear all at once, but rather evolve through gradual changes in the underlying components of the behavior, such as changing muscle activity, improved posture and a decrease in the number of errors made. According to the DST, the appearance of developmental accomplishments is the result of subtle interactions between cognitive strategies, motor activities, environmental conditions and the individual's set of motor skills.

To put it another way, the DST is about learning to coordinate sophisticated behaviors in response to the changing requirements of the task, the environment, and one's own motor abilities. Ultimately, the DST helps explain motor development by viewing it as part of an overarching and evolving system comprised of multiple parts and influences.

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Complete question is :

explain what is according to the dynamic systems theory of motor development?

Answer:

harry potter

Explanation:

A lot of damage to the Hogwarts school

The ecosystem stayed they same because the school was excluded

It took a bit of magic to rebuild it

A war is a catastrophic event because a lot of people die and get hurt and more people could be drafted and that would hurt the population

This is a Uniformly Accelerated Rectilinear Motion exercise.

We obtain the following data:

Vo = 20 m/s, Vf = 35 m/s, t = 5, a = ¿?

To calculate the acceleration, subtract the final velocity minus the initial velocity, divided by the time.

a = Vf - Vo / t

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The driver of the van will hear a higher pitch due to his higher relative velocity.

The relative velocity of an object is the velocity of the object with respect to a stationary observer.

If a fire engine is moving at 40 m/s and sounding its horn. Also if  A car in front of the fire engine is moving at 30 m/s, and a van in front of the car is stationary.

The relative velocity of the stationary van is calculated as;

Vv = -40m/s - 30 m/s = - 70 m/s

The driver of the van will hear a higher pitch since his combined relative velocity of both cars is 70 m/s.

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The question given is a 300 N/C uniform electric field points perpendicularly toward the left face of a large neutral conducting sheet.

The formula of the electric field. \(E=\frac{F}{q}\)

The formula of area charge density.\($$\ \sigma = \frac {q} {A} $$\)

where E is the electric field.

F is the force of the electric charge.

q is the charge.

σ is the area charge density.

A is the area.

The electric field is given as E=300 N/C.

As the area is neutral and conductive, thus, there is no net charge and so σ = 0. A neutral conductor sheet doesn't have a charge on its face. Therefore the area charge density on the left and right faces is zero.

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The bucket must have a speed of at least 5.03 m/s to complete the vertical circle without any water spilling.

When an object moves in a vertical circle, it experiences varying forces due to gravity and centripetal force. At the top of the circle, the net force must be directed towards the center of the circle to provide the necessary centripetal force. At the bottom of the circle, the net force must be directed away from the center.

For the bucket to complete the circle without any water spilling, it must reach a minimum speed at the top of the circle to ensure that the centripetal force is greater than or equal to the gravitational force acting on the water. This prevents the water from falling out due to gravity.

Using the equation for centripetal force, Fc = mv²/r, where m is the mass of the bucket, v is the speed, and r is the radius of the circle, we can equate the centripetal force to the gravitational force: mv²/r = mg.

Solving for v, we find v = √(gr), where g is the acceleration due to gravity. Plugging in the values g = 9.8 m/s² and r = 1.6 m, we get v = sqrt(9.8 * 1.6) = 5.03 m/s. Therefore, the bucket must have a speed of at least 5.03 m/s to complete the vertical circle without any water spilling.

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Answer:

858.7 N

Explanation:

The magnetic force on the charge F = Bqv where B = magnetic field strength = 4.02 mT = 4.02 × 10⁻³ T, q = charge = 7.12 μC = 7.12 × 10⁻⁶ C and v = c = speed of light = 3 × 10⁸ m/s

F = Bqc

=  4.02 × 10⁻³ T × 7.12 × 10⁻⁶ C × 3 × 10⁸ m/s

= 858.7 N

The electric power can be determined if any two of the three are given namely voltage, current or resistance.

The same formula will be used for the maximum value, but the amplitude will be used in place of the rms value. 2755.98 Watts is the highest possible value for the instantaneous power.

Alternating Current, sometimes known as AC in its acronym form, is a category of current that frequently reverses direction. A full positive cycle and a full negative cycle, repeated at the waveform's frequency, make up an entire AC cycle. Due to the necessity of transformers, it is a useful sort of waveform. AC usage

The lower case letter p is used to represent the instantaneous power in an AC circuit, which is defined as the sum of the instantaneous voltage (v) across the element and the instantaneous current I flowing through the element. Power Instantaneous, p=vi

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Additionally, fossils reveal the evolution of creatures and their relationships with one another. Not everything can be learned from fossils. Although fossils show us what old living organisms looked like, they do not provide any information about their color, noises, or the majority of their behavior.

The presence of fossils in rock layers is proof of previous landscapes on Earth. The age of rock is difficult to estimate. To figure out how long ago rocks formed, scientists must act like detectives and piece together a riddle.

Sedimentary rock is the kind of rocks that includes dinosaur fossils as well as practically all other types of fossils. Strata are flat layers of sedimentary rock that typically form.

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Answer:

6

Explanation:

because the numbers before the decimal point are whole numbers so that would mean the 4 & 0 before the points the ones and tens place. and anything behind a decimal goes in order as usual ones,tens,hundredths, thousandths, ten thousandths, and so on. so that what makes the 6 be in the hundredths place.

The primary surprise regarding the first planet found orbiting another regular star was the fact that its orbit took only 4 days to complete.

Astronomy has long employed the method, also known as the radial velocity method. The same telescope that astronomers used to find this planet was also used to find the first planet ever discovered around a sun-like star using radial velocity.

Finding exoplanets can be done using the Doppler method. The motion and characteristics of the star and planet are examined using the Doppler effect. The planet and the star are revolving around the same mass.

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Hi! I believe your answer is 6.3 seconds because it takes 0.45 seconds for an object to fall 1 meter, so just multiply 0.45 by 14 and you'll get 6.3 seconds. I hope this helps you! Good luck and have a great day/night. ❤️✨

Zaid should be sit at 2.6 m from pivot to make sure the see-saw is balanced.

A force or force system can rotate an object. A moment is a rotational action of force. Moments act clockwise or counterclockwise around a point. The point you select can be any point on the object, but typically the pivot point is selected.

The question is also based on Moment . For the seesaw to be balanced the moment caused by the weigh 800N of Kareen must be equal and opposite to the moment caused by the 1200 N weigh of Zaid.

A moment formula is equal to M = F x d

where , M ---> moment in N-m units

F---> force in Newton

d---> distance in meters

firstly , we calculate the force (F) resulting from the mass of each person.

Use newton's 2nd law , F = m x a .

The moment of the Kareen can be calculated using M = F x d,

moment= 800 (force or weight) x 4(distance from pivot) so, M = 3200 N-m.

The moment of the zaid must be equal and opposite to 3200N , so we have

3200 (moment) = 1200(force or weight) x d (distance).

If we divide this equation by 1200 we get 3200/1200 = d

which gives the d = 2.6m.

Hence, Zaid must sit 2.6m from the pivot to balance the seesaw with the Kareen.

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Answer:

To determine the density of an unknown object

Answer:

A contact force is any force that requires contact to occur. Contact forces are ubiquitous and are responsible for most visible interactions between macroscopic collections of matter. Pushing a car up a hill or kicking a ball across a room are some of the everyday examples where contact forces are at work.

The mechanical energies that have changed in this system are gravitational potential energy and spring potential energy. External work and changes in thermal energy are not involved in this scenario.

What is Mechanical energy?

Mechanical energy refers to the sum of potential energy and kinetic energy present in a mechanical system. It represents the energy associated with the motion and position of objects within the system.

Kinetic Energy: Kinetic energy is the energy possessed by an object due to its motion. It depends on the mass of the object and its velocity. The formula for kinetic energy is: Kinetic Energy (KE) = (1/2) × mass × velocity²

The kinetic energy increases with an increase in mass or velocity of the object. For example, a moving car or a spinning flywheel possesses kinetic energy.

Potential Energy: Potential energy is the energy stored in an object due to its position or condition.

In this problem, the ice cube is sliding without friction, so there is no work done by external forces or changes in thermal energy.

Initially, the ice cube is at the bottom of the slope, pressed against a spring and compressed by 0.100 m. At this point, the only form of mechanical energy present is the potential energy stored in the compressed spring.

When the ice cube is released, it starts moving up the slope. As it moves upward, the potential energy stored in the compressed spring is converted into gravitational potential energy.

At the highest point of its motion, the ice cube momentarily stops and then starts moving back down. At this point, all of the initial potential energy stored in the spring has been converted back into potential energy due to gravity, but with the opposite sign.

Therefore, the mechanical energies that have changed are the gravitational potential energy and the spring potential energy. External work and changes in thermal energy are not involved in this scenario.

To determine how far the ice cube will travel up the slope before reversing direction, we need to find the distance traveled that corresponds to the change in gravitational potential energy, considering the change in height.

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Complete question:
Learning Goal: To practice Problem-Solving Strategy 10.1 Conservation of energy problems.

An ice cube of mass 50.0 can slide without friction up and down a 25.0 slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 0.100 . The spring constant is 25.0 . When the ice cube is released, how far will it travel up the slope before reversing direction?

Considering only the initial and final situations, identify which mechanical energies have changed. In addition, determine whether you will need to consider any work done by external forces or changes in thermal energy.

Check all that apply.

A) Kinetic energy has changed.

B) Gravitational potential energy has changed.

C) Spring potential energy has changed.

D) Work by external forces on the system must be considered.

E) Thermal energy of the system has changed.

Now, you can identify the initial and final energies and then use this information to solve for d.

(the system is the ice cube, the spring and the earth, the environment is the slope)

Answer:    

increase, GPE, KE, KE, KE, PE, PE, KE, KE,

Explanation:

Answer:

Explanation:

Acceleration is the time rate of change, or the rate, of the velocity. Therefore, the slope y/x of a speed vs time graph would give the acceleration. If the acceleration is said to be positive, the graph would be a straight line that is at a constant increase over time.