the crank oa rotates in the vertical plane with a constant clockwise angular velocity woof 3.9 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 17.0-kg slender bar ab

When the distance between the two bodies is halved the gravitational force of attraction between them becomes one-fourth.

As indicated by Newton's law of attraction each article or body in the universe draws in every single item towards one another and that power of fascination is straight forwardly relative to the result of their masses and contrarily corresponding to the square of the distance between them.  

The power of gravity between two articles will diminish as the distance between them increments. The two most significant elements influencing the gravitational power between two items are their mass and the distance between their focuses. As mass increments, so does the power of gravity, however an increment in distance mirrors a reverse proportionality, which makes that power decline dramatically.  

At that point by Newton's All inclusive Law of Attractive energy;  

F=GMm/R²

Where R is the distance between the bodies .

So , if R′ = 1/2R

Then, gravitational force,

F = G(Mm/R²)

After doubling the distance,

F′ = G{Mm/(1/2R)²} = G{Mm/(1/4)R²}

F = 1/4F′

Therefore, when the distance between the two bodies of same mass is halved the gravitational force between them becomes one-fourth.

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A car tire has a radius of 15 inches. The rate of spin approximately in revolutions per minute is 672 revolutions per minute.

Given that, radius = 15 inches

Speed of the car = 60 miles per hour = 60*5280 = 316800 feet per hour = 31680*12 inches per hour = 3801600/60 inches per minute = 63360 inches per minute.

Angular velocity ω = ?

We know that, v = r ω

where, v is linear velocity

r is radius

Making ω as subject,

ω = v/r = 63360/15 = 4224 radians per minute

= 4224/ 2π revolutions per minute = 672 revolutions per minute

Thus, the rate of spin is approximately 672 revolutions per minute.

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X-rays are a shape of electromagnetic radiation, just like seen light. not like mild, but, x-rays have better power and might bypass through most objects.

X-rays are normally produced in X-ray tubes through accelerating electrons via a capability difference and directing them onto a goal fabric, i.e. tungsten. The incoming electrons launch X-rays as they slowdown in the goal.

X-rays are a type of radiation called electromagnetic waves. X-ray imaging creates pictures of the interior of your frame. The pix show the parts of your frame in exclusive sun shades of black and white. that is due to the fact specific tissues absorb one-of-a-kind quantities of radiation.

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Answer:

B is the answer edge 2023 <3

Explanation:

The kinetic energy of an automobile with a mass of 1250 kg traveling at a speed of 11 m/s will be  75,625  [tex]m/s^{2}[/tex]

Kinetic energy  = 1/2 * mass * [tex]velocity^{2}[/tex]

                         = 1/2 * m * [tex]v^{2}[/tex]

                          = 1/2 * 1250 * [tex]11^{2}[/tex]

                          = 75,625  [tex]m/s^{2}[/tex]

The kinetic energy of an automobile with a mass of 1250 kg traveling at a speed of 11 m/s will be  75,625  [tex]m/s^{2}[/tex]

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The kinetic energy of an automobile with a mass of 1250kg moving with the speed of 11 m/s will be 75625 J

Given,

Mass of the automobile, m = 1250 kg

The velocity at which the automobile is moving, v = 11 m/s

Kinetic energy  the energy that an object has while it is in motion and is given by;

K.E = [tex]\frac{1}{2}[/tex] m[tex]v^{2}[/tex]

= 1/2×(1250) × 11×11

= 75625 J

Hence, the kinetic energy will be 75625 J.

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On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m3 , length 92.8 cm and diameter 2.05 cm from a storage room to a machinist, the  weight of rod w is 23.41 N .

Given ,

density (d) = 7800 kg/m³

D = 2.05 cm = 0.0205 m

r = D/2 = 0.0205 / 2 =0.01025 m

h = 92.8 cm = 0.928 m

The weight is calculated by ,

W = m × g

But, to find mass (m)

m = d × V

The volume of the rod, because is cylindrical, is,

V = π × r² × h

∴ V = 3.14 × (0.01025)² × 0.928

∴ V = 3.14 × 1.051 × 10⁻⁴ × 0.928

∴ V = 3.0625 × 10⁻⁴

Now to calculate mass,

m = d × V

∴ m = 7800 × 3.0625 × 10⁻⁴

∴ m = 2.3887 Kg

Now, for calculating weight

W = m × g

∴ W =  2.3887 × 9.8

∴ W = 23.41 N

∴ The weight of the rod W assuming the free-fall acceleration is 23.41 N .

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There is a good chance that all chains tested at all speeds tested above the international limit of 8000N.

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The book would be found to slide forward.

We know that from the Newton first law, it is clear that a body that is in a state of rest or uniform motion would continue in that state unless it is acted upon by an external force.

In this case, we can see that the book was dropped on the floor of the train and the train is now seen to slow down rapidly until it gradually comes to a stop.

From the Newton first law, the book would have to move forward as it suddenly acted upon by a huge force.

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This is the accurate statement out of all the ones offered because adsl offers asymmetric digital subscriber, hence neither next nor fext are a problem to service providers having same wavelength.

Asymmetric digital subscriber line, or ADSL, is a form of digital subscriber line technology that offers an asymmetric data path while providing a symmetric digital subscriber path for next and next. As a result, neither of these companies will offer ADSL services. ADSL is a digital method that uses PCM to sample analogue signals digitally. Pulse code modulation, or PCM-PCM, is a technique for digitally converting a single analogue signal into a digitally sampled signal.

When packets from A to B take a different path than other packets, this is known as asymmetric routing. In physics, the wavelength is the length over which a periodic wave repeats, or its spatial period. It is the separation between consecutive equivalent points on a wave that are in the same phase. Is called as wavelength.

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Curves with equal elevation points should be added to the topmost circular contour lines because they show the form of the land surface on the map.

Contour lines are described as lines drawn on a map with equal elevation points, so elevation would be constant if you followed the contour line physically.

The characteristics of contour lines include:

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1.06 g/mL  is her average density

Fb = 690 N - 40 N

Fb = 650 N

water displaced =  650 N / 9.8m/s^2

water displaced = 66.3 kg

water density =1 kg/L,

volume = mass/density:

V = 66.3 kg / 1kg/L = 66.3 L

athlete V = 66.3 L

F = mg

m = 690 N/ 9.8m/s^2

m  = 70.41 kg

average density = 70.41 kg / 66.3 L L

average density = 1.06 kg/L

= 1.06 g/mL

Density is defined as a material substance's mass per unit volume. Density is described by the equation d = M/V, where d stands for density, M for mass, and V for volume. Grams per cubic centimeter is the unit of measurement for density. For instance, compared to Earth's density of 5.51 grams, water has a density of 1 grams per cubic centimeter. Another way to express density is in kilograms per cubic meter (in meter-kilogram-second or SI units)

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A boat travelling through the sea while being affected by two forces resulted in the following calculations: acceleration = 0.2, distance = 10 meters, and final velocity = 2 m/s.

Newton's Second Law of Motion is given by this formula;

acceleration=[tex]\frac{Netforce}{mass}[/tex]

Acceleration is the rate of change in both the direction and speed of velocity over time. So when something moves faster or more slowly in a straight line, it is referred to as pushed.

A metre per secondly per second (m/s2) is used to measure acceleration. Definition. The snewton is the unit of force responsible for producing an accelerating of one m / s2 per second when applied to a mass about one kilogram.

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The supplied statement states that arithmetic velocity increase coincides with a geometric rise in the initial force to resistance ratio.

The pace at which something goes in one direction or another is referred to as its velocity. as swiftly as a car traveling north on a highway or the speed of a rocket taking flight. The magnitude of the velocity vector's absolute value will always be equal to the motion's speed since it is a scalar.

An object's velocity is the rate at which its location changes over time (displacement). While velocity, which incorporates both speed and direction, may be either favorable or unfavorable, speed can only be good.

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Turning point is 2.05J,force is 10N,force is positive then it points in the positiveX-direction.  total energy  is 41.1855J  and  F DIRECTION IS -VE X DIRECTION

A)

     At x = 4.5 m potential energy is U1 = 15 J

     Initial kinetic energy isK1 =  (1/2)mu2

          m = 0.9 kg

           u= 7 m/s

then K1 =  (1/2)*0.9*(7)2J= 22.05 J

Then the total energy is :     T =15+22.05=37.05 J

Let  Kinitic energy be K2 Then total energy is :

  T = U2 +K2 =  37.05J

        35 J+K2 = 37.05J

 Then K2 = 2.05 JThis is  greater than zero and hence particle reaches the point X=1m

  then K2 = (1/2)mv2 = 2.05J

       (1/2)*1.1(v)2J =2.05 J

solve for v

b)we know that force F = -dU/dX

                                 = -(35-15)/2-4 = +10 N

c)

  As force is +ve then the itd points in the +ve X-direction.

d)

  At X = 7m then potential energy is U3 = 45J

  X = 7m .at turning point kinetic energy of theball is zero.

   then turning point will be between x = 5 mand x = 6 m

   total potential energy U4  is15-f(dx)

   here dx = x-5

  we know that f = -dU/dX

  At   X = 5 m

   dx = 6-5 = 1m

  dU = 45-15 = 30 J

THEN f = -30/1 = -30N

Then TOTAL POTENTIAL ENERGY IS U4 = 15+30(x-5

but total potential energy is equal total energy  41.180J      

then  

15+30(x-5)=  41.1805J      

solve for x

e)

 force at x = 5 m is f = -30 N

F DIRECTION IS -VE X DIRECTION  

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If you send a single wave pulse through the string, it will be transmitted through to the rope.

Let's consider a thin rope attached to a thick rope, with every rope held at opposite ends via people. And suppose that a pulse is introduced through the person conserving the top of the skinny rope. If that is the case, there will be an incident pulse visiting within the less dense medium toward the boundary with a more dense medium.

A part of the strength carried through the incident pulse is transmitted into the thick rope. The disturbance that keeps shifting to the right is called the transmitted pulse. A part of the energy carried via the incident pulse is reflected and returns toward the left giving up the thin rope. The disturbance that returns to the left after bouncing off the boundary is called the reflected pulse.

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The law that is responsible for the fact that the inflated balloon released from rest moves horizontally is the law of action and reaction.

Let us note that according to the Newton's third law, action and reaction are equal and opposite. In this case, we are told that an inflated balloon released from rest moves horizontally. We know that the direction that the object moves must be in that of the applied force.

In this case, there is a horizontal force that is applied on the balloon and the effect of this force is that the balloon would have to move in the horizontal direction and this is in reaction to the horizontal force that has been applied.

This is therefore in line with the Newton third law that states that action and reaction are equal and opposite.

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Stagflation is the simultaneous look in an economic system of gradual increase, excessive unemployment, and growing costs.

As soon notion by economists to be impossible, stagflation has passed off repeatedly within the advanced international since the 1970s. policy answers for gradual growth generally tend to worsen inflation and vice versa.

Stagflation is a scenario of each excessive inflation and high unemployment; happens while output is falling at the same time that prices are rising. The life of labor unions and salary controls in nationalized industries sparked it.

Economists have proven that stagflation changed into conventional amongst seven primary marketplace economies from 1973 to 1982. After inflation quotes started to fall in 1982, economists' awareness shifted from the causes of stagflation to the "determinants of productiveness boom and the results of actual wages at the call for exertions".

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The maximum Energy is [tex]20.5 * 10^{3}[/tex] eV and the maximum frequency is [tex]4.96 * 10^{18}[/tex] Hz

Potential Energy(V) = 20.5 kV = [tex]20.5 * 10^{3}[/tex] V

Charge of an electron (q) = [tex]1.6 * 10^{-19}[/tex] C

Now, we know,

E = qV

Putting the values in the equation, we get :

E = [tex]1.6 * 10^{-19} *20.5 * 10^{3}[/tex]

Now, [tex]1 eV = 1.6 * 10^{-19}[/tex] J

So, E = [tex]20.5 * 10^{3}[/tex] eV

Hence, the maximum Energy is [tex]20.5 * 10^{3}[/tex] eV.

Now, E = hf

f = E/h

Planck's Constant = h = [tex]4.136 * 10^{-15}[/tex] eV / Hz

[tex]f = \frac{20.5 * 10^{3} }{4.136 *10^{-15} } = 4.96 * 10^{18}[/tex]

Hence, the maximum frequency is [tex]4.96 * 10^{18}[/tex] Hz

The magnetic influence on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, which is a vector field. A force perpendicular to the charge's own velocity and the magnetic field acts on it when the charge is travelling through a magnetic field.

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Power to tax is an implied power.

Implied powers are the kind of political powers granted to the United States government that aren't stated in the constitution. These implied powers are needed for the function of any kind of governing body.

Creating a national bank, regulating commerce, collecting tax, raising an army, establishing post offices are some of the implied powers.

Expressed powers are the kind of powers that are directly granted to the federal government found in the constitution.

Few examples of expressed powers are the power to declare war, regulate foreign and interstate commerce, maintain military, conduct foreign relations, etc.

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If a senator voted against a gun-control bill that he agreed with but that his constituency did not support, he exemplifies a trustee style of representation.

Delegates is to see themselves as perfect agents of others, they have been elected to do the bidding of those who sent them to the legislature.

Trustee, a member of congress who represents constituents interest while also taking into account national, collective, and moral concerns that sometimes cause the member to vote against the preference of a majority of constituents, being responsible.

The Senate is smaller and allows for more debate, and they also have the ability to filibuster, which can kill legislation. In the House, committees are more responsible for the bills and there is less debate.

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A cantilever beam's free end exhibits the most slope and deflection, whereas the clamped end exhibits neither slope nor deflection.

The midspan of a simply supported beam under symmetric loading conditions is where the maximum deflection occurs. The beam supports are where you can see the steepest slope. Where the slope is zero, the maximum deflection happens.

From the perspective of structural analysis:-

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The earth's core is not a diamond.

Core of the earth is the deepest part inside of the earth which is specifically made up of iron and Nickle.

Hence, diamond is formed at the upper mantle of the earth and not at the core.

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The unknown mass of solid wrecking ball is 545.21

What is mass?

mass is a quantitative measure of inertia , a fundamental property of all matter . mass depends on the number and kind of atoms.

It is a dimensionaless quantity.

Sol-

As per the given question

220 g of water added to 90°c

Mass of water=10°C

Tempreture of the mixture =33°C

Unknown mass-

m1 (n-t)= m2(t-b)

220(90-33)=m2(33-10)

:- (we can also do multiple of cp but as both side of the cp fluid unit  are same so it's not needed)

220×57=m2 (23)

m2= 220×57/23

m2 =545.21

Thus the unknown massof water is 545.21 .

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The solution is 22.6 based on the above statement and  child's apparent weight is 3 times greater than its actual weight.

to move more quickly: to pick up pace. The automobile accelerated gradually. In recent months, change has happened faster. to move through the grades more quickly than is typical: to pursue an accelerated educational plan.

For instance, if a car is traveling at a constant speed and turning a corner, it is accelerating since its direction is shifting. The acceleration increases with turning speed. Therefore, when velocity varies, whether in quantity (an increase or reduction in speed), direction, or both, there is an acceleration.

Briefing:

[tex]\sum F_y=ma_y=F_n-mg\\\because F_n=W_{appar}\\\\\therefore ma_y=W_{appar}-mg\\W_{appar}=ma_y+m[/tex]

[tex]\begin{gathered}W_{a p p a r}=m \times\left[a_y+g\right] \\W=0.57 \mathrm{~kg} \times 9.8 \mathrm{~m} / \mathrm{s}^2 \\W_{a p p a r}=54.1 \mathrm{~N}\end{gathered}[/tex]

[tex]W_{\mathrm{appar\ }}=m\times\left[a_y+g\right]\\W=0.57\mathrm{\ }kg\times39.8\mathrm{\ }m/s^2\\W_{\mathrm{appar\ }}=22.6\mathrm{\ }N[/tex]

The baby's actual weight is:

[tex]\begin{matrix}W=mg=0.57\times9.8\\W=5.5\mathrm{\ }N\\\end{matrix}\\\begin{matrix}&W_{\mathrm{appar\ }}=\frac{W_{\mathrm{appar\ }}}{W}\times W=\frac{22.6\mathrm{\ } N}{5.5\mathrm{\ }N}\times W=4.1W\\\\&W_{\mathrm{appar\ }}-W\\\\&4.1W-W=3.1W\\\end{matrix}[/tex]

Thus, her child's apparent weight is 3 times greater than its actual weight.

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The maximum gravitational energy of the kangaroo of mass 90kg jumps with an initial velocity of 5 m /s when it reaches its highest point is 1125 J

v² = u² + 2 a s

At the highest point,

v = 0

u = 5 m / s

a = - 9.8 m / s²

0 = 5² + 2 ( - 9.8 ) s

19.6 s = 25

s = 1.28 m

U = m g h

m = 90 kg

U = 90 * 9.8 * 1.28

U = 1125 J

Therefore, the maximum gravitational energy of the kangaroo when it reaches its highest point is 1125 J

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A 22 g bullet is accelerated with a force of 1.5 × 10⁴ N. in a rifle barrel 64.7cm long to a speed of 953 m/s.

A 21 g (m) bullet is accelerated from rest (u= 0m/s) to 953 m/s (v). We have to calculate the change in the kinetic energy (∆K) using the following formula

∆K= Kf - Ki

where, Kf = final kinetic energy and Ki = initial kinetic energy

∆K= 1/2 x m x v² - 1/2 x m x u²

∆K= 1/2 x m x v²

∆K= 1/2 x 0.022kg x (953m/s)²

∆K = 9.9 × 10³ J

The bullet is accelerated in a 64.7 cm riffle barrel.

According to the work-energy theorem- the work done is equal to the change in the kinetic energy.

W = F×s

W= F × 0.647 = 9.990 × 10³ J

F = 15440.4 Newton

Hence, F = 1.5 × 10⁴ N.

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The measurement of specific gravity compares the density of urine to the density of water.

Specific gravity, also known as relative density, is the ratio of a substance's density to that of a standard substance.

Urine specific gravity (USG) is a measurement of the particle concentration in urine as well as the density of urine in comparison to the density of water. Measuring USG is a quick and easy way to determine a patient's hydration status as well as kidney function. The more concentrated the urine, the higher the urine specific gravity.

Your healthcare provider will consider the density of your urine in relation to the density of water. In other words, the specific density of water is 1.000. If your kidneys are working properly, your urine specific gravity should be between 1.002 and 1.030.

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Answer:

[tex]v_1=84.36\frac{m}{s}[/tex]

Explanation:

Momentum (p) is found by [tex]p=mv[/tex]

[tex]p_1=m_1v_1\\p_2=m_2v_2[/tex]

So, the momentum of the objects will be the same when [tex]m_1v_1=m_2v_2[/tex].

So, the speed at which the momentums are equal is represented by [tex]v_1=\frac{m_1v_1}{m_2}[/tex].

[tex]m_1=110kg\\m_2=1600kg\\v_2=5.8\frac{m}{s}\\v_1=\frac{(1600kg)(5.8\frac{m}{s})}{110kg}\\v_1=84.36\frac{m}{s}[/tex]

Usually, the entity will have the attributes as their columns, and the relationships will have the primary keys of entities as their columns.

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The approximate mass of the galaxy within 160,00 light-years of the center is 2.0x10^42 kilograms.

To find the mass within 160,000 light-years of the center of the galaxy, we will use the orbital velocity law:

M(r)= (rv^2)/G

Hence, mass of the galaxy within 160,00 light-years of the center is 2.0x10^42 kilograms.

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