If a 10.4kg block rests on a rough horizontal table with a coefficient or friction of u=0.15 then what is the resulting force of friction on the block ?

When completely filled with apples, the crate weighs 15 kg; when only 2/3 full, it weighs 11 kg; and when only 1/3 full (with only 1/3 of the crate's apples), it weighs 15-11=4 kg.

Definition of WEIGH in the Britannica Dictionary. She measures herself every morning in order to determine how heavy she is. 1. a [+ object]: to determine (someone or something's) weight. The bananas were weighed using a scale.

To quantify weight or mass, one uses a scale or balance. These are also referred to as weight balances, mass balances, and scales of both mass and weight.

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The distance that the bullet penetrates is 0.03m.

Given data:

The mass of the bullet is

m = 25 g = 0.025 kg

The bullet's initial velocity is

u = 350 m/s

The final velocity of the bullet is

v = 0

The average force opposing the motion is

F = 50000N

From Newton's second law, the acceleration derived as,

F = m. a.

a = F. m..........(1)

Substituting values in equation (1), we get:

a = 50000 N / 0.025 kg = 2×106 m/s 2

The equation of motion is,

v 2=u 2−2 a S

2 a S=u 2−v 2

S = u 2−v 2/2 a.......(2)

Substituting values in equation (2), we get:

S = (350 m/s)2−0/2(2×106 m/s 2)

 =12.25×104 m/s 4×106 m/s 2=0.03m

here, the distance that bullet penetrates is 0.03m.

Kinetic energy has the following formula: K.E. = 1/2 m v 2, where m is the object's mass and v is its square velocity. The kinetic energy is measured in kg/m per second squared if the mass is measured in kg and the velocity is measured in meters per second.

Radiant, thermal, electrical, and mechanical kinetic energies are the basic categories.

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The power is 20w when the work done is 500 joules in 25 seconds.

                  P = W / T

Another formula for power based on energy and time is :

Here given,

W = 500 J

T = 25 sec

By substituting,

P = W/T

  = 500 / 25

  = 20w

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The following vectors best describes the path of the airplane Aniseed of the as plan is 528 [tex]\mathrm{mi} / \mathrm{hr}[/tex]

What is airplane?

A fixed-wing aircraft that is pushed forward by the thrust of a jet engine, propeller, or rocket engine is known as an aeroplane or aeroplane. There are many different sizes, forms, and wing arrangements for airplanes.

[tex]\text { bearing } 25^{\circ} \text { west of north }[/tex]

[tex]\text { Since } \quad 90^{\circ}+25^{\circ}=115^{\circ}[/tex]

[tex]\text { so path of the airplane is }[/tex]

[tex]\left.v=528 \cos \left(i 15^{\circ}\right) i+528 \sin \left(115^{\circ}\right)\right][/tex]

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Understanding an object's structure and function requires observation at a variety of wavelengths.

This is due to the fact that we have just lately been able to view the complete electromagnetic spectrum of the universe.There are objects in our universe that emit a wide variety of radiation having wavelengths either being too short or long for human eyes to see.

Astronomers can learn something distinctive about an item by examining its light at various wavelengths.Astronomers may see "the broad picture" of what's actually happening with that object by examining all available wavelengths and developing models that account for everything those photographs show.

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The roller coaster is going with 15.34 m/s when it reaches the bottom.

Energy cannot be created or destroyed, according to the law of conservation of energy. However, it is capable of change from one form to another.

According to the question, potential energy of the roller coaster at initial position = mass * acceleration due to gravity* height = mgh

Let the speed of the roller coaster at the bottom = v.

So, kinetic energy at the bottom = 1/2 * mass * speed^2 = 1/2 mv^2

From conservation of energy:

mgh = 1/2mv^2

v= √( 2gh)

= √( 2 × 9.8 × 12) m/s

= 15.34 m/s.

Hence, the speed of it at the bottom is 15.34 m/s.

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The image height for a converging lens with a 20 cm focal length and a diverging lens with a 38 cm focal length that are 78.0 cm apart is 1.35 cm. 40 cm are in front of the converging lens

And a 2.7 cm tall object is there. An optical lens that converges all light rays travelling through it is known as a converging lens. A converging lens  main function is to concentrate and converge the incoming light rays from an object to create an image. Depending on how close an object is to the lens, the image may be enlarged or unchanged.

h = (-di/do)(-di2/do2)*height

h = (-38/38)(-(-15))/30 (2.7)

h = -1.35 cm

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The complete question is-

a converging lens with a focal length of 20 cm and a diverging lens with a focal length of -38 cm are 78.0 cm apart. a 2.7-cm-tall object is 40 cm in front of the converging lens. Calculate the image height. Express your answer to two significant figures and include the appropriate units.

Approximately, 400 tons of municipal solid waste landfills in the United States combust landfill gas to generate heat and electricity

We know that municipal waste has to do with the waste products that can be obtained from the activities that go on in the city. the magnitude of the municipal waste that is generated in a place would have a lot to do with the population of the area as well as the industrial saturation of the area.

This is the reason why the areas that have less population and the industries that are there are not so much do not expirience a lot of pollution and do not have a large amount of waste water that goes out as sewage.

The solid wastes that are generated in the United States is just as large as the sewage that is generated in the united states and calls for a very urgent attention.

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The change in the kinetic energy of block A is 1,837.5 J.

The change in the kinetic energy of the blocks as it moves through the given distance is the work done in overcoming the force of friction.

Based on the law of conservation of energy, the equation is given as;

ΔK.E = W (f)

Where;

W (f) = μmgd

where;

The change in the kinetic energy of the block A is calculated as follows;

W (f) = μmgd

W (f) = 0.25 x 50 x 9.8 x 15

W (f) = 1,837.5 J

Thus, the change in the kinetic energy of block A is a function of work done by force of friction along the incline.

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(a)The velocity (Xv) of the craft as measured from the earth is given as follows:

Vx = v¹x+v/1+( v¹x+v/c²) = 0.79∝ + 0.550c/1+(0.79c)(0.550c)

= Vx = 0.434c

Hence Vx is the velocity of the craft with respect to the mother ship and the velocity of the mother ship with respect to earth.

(b) distance between craft and earth, as measured by the mother ship as follows.

[tex]L0 = \sqrt[L]{\frac{1-V^{2} }{C^{2} } } = (0.160ly)\sqrt{1-(\frac{0.550}{c})^{2} }[/tex]

L0 = 0.1336ly.

(c)The velocity of craft with respect to earth as measured from the mother ship is as follows:

VCO = Vcmt + Vme

= 0.790 + 0.550 = 1.34c

Time taken by craft to land on earth as measured by the mother ship is as follows:

t =  0.1336ly/1.34 =  0.0997yr

(d) Time taken by craft to reach earth as measured from the earth is as follows:

t = 0.60ly/0.934c

t = 0.171yr

(e) Time taken by the craft to reach earth with respect to its rest frame is as follows:

to =[tex]\sqrt[t]{1-\frac{v^{2} }{c^{2} } }[/tex]

= 0.171 yr [tex]\sqrt{1-\frac{(0.934c)^{2} }{c^{2} } }[/tex]

to = 0.0610yr

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the bitewing tab is a heavy paperboard tab or loop fitted around a periapical film or sensor and used to stabilize the receptor during exposure. true

What is stabilize?

to stop changing and fix something, especially to prevent it from getting worse, or to induce something to stop changing and fix it: These drugs reduce blood pressure and calm your heart rate.

the periapical receptor is oriented in the bite loop so that the tab portion extends from the white side (tube side) of the film or sensor.True

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If the plane of the loop is perpendicular to the magnetic field then the θ will be zero. Torque will likewise be 0 at that point.

Given that, a rectangular coil of wire, 22 cm by 35 cm and carrying a current of 1.95 A, is oriented with the plane of its loop perpendicular to a uniform 1.50 T magnetic field.

The strength of magnetic torque on the current-carrying circle is given by the below formula, if θ is the angle between A and B. Then we have

τ = I AB sin θ

When the loop plane is perpendicular to the magnetic field, the amplitude of magnetic torque on the current-carrying circle is zero.

Then θ = 0°

Then we have,

τ = I AB sin 0° = 0

The question is incomplete. The complete question is 'Find out the torque in the coil.'

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Answer:

Liquid water one flowed on mars,the existence of nutrients,and the previous discovery of a past magnetic field that protected the planet from cosmic and solar radiation.

When a function p(x) determines location, the velocity and acceleration are its first and second derivatives, respectively.

The equation a = v/t denotes acceleration (a), which is the change in velocity (v) over the change in time (t). This enables you to calculate the change in velocity in meters per second squared (m/s2). Since acceleration is a vector quantity, both its magnitude and its direction are included. The speed and direction of an object's motion are its velocity. Alternatively put, velocity is the pace at which an object's position changes (where position incorporates direction by specifying whether the object is moving backwards or forwards on a line, or moving sideways or up and down in two or three dimensions).

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The lead pollution can be remediated by the appllication of the approppiate reagents.

We know that we need to always consider the threshold concentration of pollution as we are looking at the safety of the environment

Now we are told that the safe concentration of the lead must not be more than 400 ppm. Above that concentration, the effects may be quiet fatal.

There should be spirited attempts to remediate the soil by the use different methods so that the soil can become good again for the growing of crops.

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No, the activation energy for a forward reaction is not equal to the activation energy for the reverse of the same reaction.

In order for compounds to undergo a chemical reaction, a certain amount of energy is required, known as the activation energy. The unit of measurement for a reaction's activation energy (Ea) is either joules per mole (J/mol), kilojoules per mole (kJ/mol), or kilocalories per mole (kcal/mol). You can think of activation energy as the size of the potential barrier between the minima of the potential energy surface related to the initial and final thermodynamic states, which is also referred to as the energy barrier. If the system temperature is high enough, there should be a sizable number of molecules with translational energies that are equal to or higher than the activation energies.

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The velocity of the sailboats at sailed a distance of 81 km is 12.5 m/s.

Velocity is the rate of change of displacement.

To calculate the velocity of the sailboats, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the velocity is 12.5 m/s.

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The hitters final displacement from home plate is 60 m.

The displacement of an object is the change in the position of the object.

The displacement of an object is determined from the shortest distance between the initial position and the final position of an object.

The hitters final displacement from home plate is calculated as follows;

Δx = x₁ - x₂

where;

Δx = x₁ - x₂

Δx = 30 m  - ( - 30 m)

Δx = 30 m + 30 m

Δx =  60 m

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Spectroscopy. distances up to about 10,000 light years.

Astronomical distance is the measurement of space between objects in the universe. It is usually measured in light years, which is the distance light travels in a year. Astronomical distance is incredibly vast and hard to comprehend, as it is measured in trillions of miles. Astronomical distance is used to measure distances between objects in the universe such as stars, galaxies, and planets. Astronomical distances are also used to measure the size of the universe, as well as the age of galaxies and stars. Astronomical distances can be measured using advanced instruments such as telescopes and spectroscopes. Astronomical distances are essential for understanding the structure of the universe and the evolution of galaxies and stars.

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The maximum absolute values of the shear and bending moment is 2P and 3Pₐ respectively.

(a) Diagram is shown in image.

From A to B:

+∑Fy = 0: V = -P

+∑M₁ = 0: M = -P

From B to C:

+∑Fy = 0:

-P-P-V = 0

⇒ V = -2P

+∑M₂ = 0:

Pₓ+P(x - a)+M =0

⇒ M = -2Pₓ + Pₐ

(b) The maximum bending moment occurs in a beam, when the shear force at the section is zero or changes the sign because at point of contra fixture the bending moment is zero.

Therefore

= |V|max = 2P

= |M|max = 3Pₐ

Thus, the maximum absolute values of the shear and beading moment is 2P and 3Pₐ.

-- The given question is incomplete, I answer the question in general according to my knowledge and the complete question is

"For the beam and loading shown, (a) draw the shear and bending-moment diagrams, (b) determine the maximum absolute values of the shear and bending moment." --

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If a conductor is in electrostatic equilibrium near an electrical charge i.e. the correct option is, B) The electric field inside the conductor must be zero.

The conductor in electrostatic equilibrium has characteristics such as a zero electric field inside and excess charges that are located on the surface. Therefore, the conductor's internal electric field must be zero.

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The electric field strength in volts per meter is calculated to be 4.095 V/m.

Given that, speed v = 3.9 * 10 m/s

Magnetic field B = 0.105 T

Using the mass spectrometer velocity selector relationship between the electric field and magnetic field is,

v = E/B

Where,

v is the speed selector

B is magnetic field

E is electric field

Therefore, E = vB

E = 3.9 × 10 × 0.105

E = 4.095 V/m

Thus, electric field E is 4.095 V/m.

The question is incomplete. The complete question is 'What is the electric field strength in volts per meter?'

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The spring and pan have very little mass. The mass executes a SHM when it is lightly squeezed and then released.

Forces, location, velocity, and energy—both kinetic and potential energy—are some examples of these quantities. Hoare's Rule. Energy conservation: When the compressed spring returns to its natural length, all of the energy that was stored in it is transformed into kinetic energy. The block is propelled along a horizontal surface as the spring is let go. Friction and the spring's bulk can be disregarded. Between two blocks with masses of 1 kg and 2 kg that are lying on a smooth horizontal surface is a compressed elastic spring. The block is freed from rest once the spring has been compressed by 2.0 cm.

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In cases when the stairway is straight, the width of the landing in the direction of travel must at least match the stair's width and cannot be greater than 1219mm.

The four main axes are north, south, east, and west. A map is a representation or drawing of the entire or a portion of the surface of the earth done to scale and on a flat surface. A spherical shape, however, cannot be totally flattened. Distance, direction, and symbol are the three elements that make up a map.

Most maps have an arrow with the letter "N" on them in the upper right-hand corner. North is indicated by this arrow's orientation. It is referred to as the north line. You can determine which direction is east, west, or south once you know which way is north. The four main axes are North, South, East, and West. ​

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It is true to say that If a cable originates inside one building and leaves the building, the landlord loses control of that cable.

Cable originating from one building to another building will have total control by the landlord from which the cable have passed. Since cable passes from one building to another building in that case some part of cable is not inside the building due to that control over the cable is distributed between more than one type of landlords .Worms can be spread through means other than direct network .Now, when it passed between the two building, in that case if one landlord did some changes in some part of cable then that change will not be controlled by the landlord who live in other building.

Hence, given statement is true.

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In the absence of an external force, the total linear momentum of the system maintains conservation, indicating that the speed of the system's center of mass is constant.

This is because the spring force between the masses acts as an internal force between the two masses.

The product of an object's mass, m, and velocity, v, is known as linear momentum, and it is a vector quantity. In order to express it and refer to momentum informally, the letter "p" is utilized. You should be aware that a body's momentum always points in the same direction as its velocity vector. Because it is a conserved quantity, the overall momentum of a system is always constant. Linear momentum is measured in kg/s.

The total linear momentum prior to an object's interaction and the total linear momentum following that interaction is identical. Any system of objects that is subject to no net external force has a constant total linear momentum.

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After extinguishing a fire on the first floor of a two-story balloon-framed house, the best action for crews is to immediately open the walls and check for fire in the basement, second floor, and attic.

The vertical struts of the outer wall are continuous from the foundation to the roof with a balloon frame structure. When the roof collapses into a structure, it can provide a watertight cover over a buried fire. Heavy wood is more stable than lightweight structures in fire conditions.

Marion of the building is surrounded by balloons, from the foundation to the eaves line he extends upwards more than two stories. A mansard or mansard roof is his four-sided gambrel-style hipped roof characterized by his two slopes on either side, the lower slope pierced with dormer windows and angled more steeply than the upper.

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The amplitude is 0.25s.

Calculation:

Amplitude = A = 0.225 m

Angular frequency = w = 8π rad/s.

Frequency = f = w/2π = 8π/2πHZ = 4 HZ

Time period = T = 1/f = (1/4)s = 0.25s.

The maximum displacement or distance traveled by a point on an oscillating body or shaft, measured from the equilibrium position. This corresponds to half the length of the vibration path. Amplitude difference between a rest position and maximum shaft deflection.

Frequency The number of waves passing a particular point per second. Duration  How long it takes for a wave cycle to complete. Sound wave amplitude is a measure of wave height. The amplitude of a sound wave can be defined as the magnitude or loudness of the maximum displacement from the average position of the vibrating particles in the medium when the sound was produced.

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The magnetic field for this wave is

[tex]B(x, t)=(9*10^{-8}T )i sin[2\pi (1.5*10^{-8}x-2*10^{14}t )][/tex].

Electromagnetic Wave:

The oscillations between an electric field and a magnetic field produce waves known as electromagnetic waves or EM waves. In other words, magnetic and electric fields oscillate to form electromagnetic (EM) waves.

Given,

         Frequency of the wave;  [tex]f=[/tex] [tex]2*10^{14} Hz[/tex]

         The amplitude of the Electric Field;  [tex]E_{0} = 27 N/C[/tex]

We know that Maxwell's equation is given by,

                                      [tex]\frac{E_{0} }{B_0} =c[/tex]        .....................(1)

Where,

         [tex]E_{0} =[/tex] The amplitude of the electric field

         [tex]B_{0}=[/tex] The amplitude of the magnetic field

            [tex]c=[/tex] The velocity of light = [tex]3*10^{8} N/m^{2}[/tex]

By solving equation (1), we get

                                     [tex]B_{0} =\frac{27}{3*10^{8} }[/tex]

                                      [tex]B_{0}=9*10^{-8}[/tex]

We know that,

         Angular frequency; ω [tex]= 2\pi f[/tex]

The equation of the magnetic field can be given by

                  [tex]B_{0}sin(kx-\omega t) =B_{0}sin(2\pi (\frac{x}{\lambda}-ft ))[/tex]

                  [tex]B_{0}sin(kx-\omega t)=9*10^{-8} sin(2\pi (\frac{x}{\lambda}-2*10^{14} t))[/tex].

Hence,

         The magnetic field for this wave is

                        [tex]B(x, t)=(9*10^{-8}T )i sin[2\pi (1.5*10^{-8}x-2*10^{14}t )][/tex].

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