complex design and construction such as wear, breakdown, and maintenance of mechanical parts are two limitations and shortcomings of mechanical computation?

Answer:

Verb. Load with too great a burden or cargo.

"Both boats were overloaded and low in the water"

Noun. An excessive load or amount.

"an overload of stress"

Explanation:

Similar words are strain, excess, and overburden.

Have a good day and stay safe!

A force on the free-body diagram above which represents the normal force acting on the car include the following: D. Force A.

In Science, a free-body diagram can be defined as a graphical illustration which is typically used in the field of science to visualize moments, tension, and applied forces that are acting on an isolated or rigid object (body), while using arrows to point in the direction of these forces.

Since this car was driven to the right, with a large amount of air resistance acting on it, and its engine provides the forward motion, we can reasonably infer and logically deduce that the normal force which is acting on the car is represented by Force A as illustrated by the free-body diagram shown in the image attached above.

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Answer:

43.3 m/s.

Explanation:

Assuming the potential energy is due to the gravitational potential energy, we can use the conservation of energy to find the kinetic energy:

Total energy = Potential energy + Kinetic energy

Kinetic energy = Total energy - Potential energy

Kinetic energy = 300 J - 40 J = 260 J

However, we need to know the mass of the object to convert the kinetic energy to velocity. We can use the potential energy to find the mass:

Potential energy = mgh

40 J = m(9.81 m/s^2)(300 m)

m = 0.137 kg

Now we can use the kinetic energy to find the velocity:

Kinetic energy = (1/2)mv^2

260 J = (1/2)(0.137 kg)v^2

v^2 = (2*260 J) / 0.137 kg

v = 43.3 m/s (rounded to one decimal place)

Therefore, the kinetic energy is 260 J and the velocity of the object when it reaches the ground is 43.3 m/s.

Answer:

Theta is used to measures angles

Answer:

A telephone pole casts a clear shadow in the light from a distant head lamp of a car, but no such effect is noticed for the sound from the car horn. Why? Answer: The sound and light both are waves. But the wavelength of sound waves is very large as compared to the wavelength of light waves.

Explanation:

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The resultant force due to the cumulative forces acting on the body is 6i+6j N.

Force is a vector quantity and the direction in which they act affects the total magnitude of force. A vector quantity has both magnitude and direction.

And to add a vector one needs to take account of the direction as well.

The force acting on the body can be written as follow:

1. 10N along x-axis ---- 10i

2. 6N along y-axis ---- 6j

3. 4N along negative x-axis ----- -4i

The resultant force is the sum of the above vector:

10i +6j + (-4i) = 6i+6j N

The magnitude of the total force is

\(\sqrt{6^2+6^2}\\ =\sqrt{36+36}\\ =\sqrt{72}=6\sqrt{2} N\)

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The complete question is:

Find the resultant of the following forces

(i) 10 N along the x-axis

(ii) 6 N along the y-axis

(iii) 4 N along the negative x-axis

Answer:

v = 2,99913 10⁸ m / s

Explanation:

The velocity of propagation of a wave is

         v = λ f

in the case of an electromagnetic wave in a vacuum the speed that speed of light

         v = c

When the wave reaches a material medium, it is transmitted through a resonant type process, whereby the molecules of the medium vibrate at the same frequency as the wave, as the speed of the wave decreases the only way that they remain the relationship is that the donut length changes in the material medium

         λ = λ₀ / n

where n is the index of refraction of the material medium.

Therefore the expression is

           v = \(\frac{\lambda_o}{n} f\)

Let's look for the frequency of blue light in a vacuum

           f =\(\frac{c }{\lambda_o}\)  

           f = \(\frac{3 \ 10^8}{450 \ 10^{-9}}\)

           f = 6.667 10¹⁴ Hz

the refractive index of air is tabulated

           n = 1,00029

let's calculate

           v = \(\frac{450 \ 10^{-9} }{1.00029} \ 6.667 \ 10^{14}\)450 10-9 / 1,00029 6,667 1014

            v = 2,99913 10⁸ m / s

we can see that the decrease in speed is very small

The distance between charge A and charge C can be either 0.99 m or 1.01 m, depending on the specific arrangement of the charges.

To determine the distance between charge A and charge C, we can use the concept of electrostatic equilibrium. In electrostatic equilibrium, the net electrostatic force acting on a charged object is zero. This means that the electrostatic forces between charge A and charge C, and between charge B and charge C, must balance each other out.Let's assume that charge C is located at a distance x from charge A. The force between charge A and charge C can be calculated using Coulomb's law:

F_AC = k * (q_A * q_C) / (r_AC^2),where F_AC is the force between charge A and charge C, k is the electrostatic constant, q_A is the charge of A, q_C is the charge of C, and r_AC is the distance between A and C.Similarly, the force between charge B and charge C can be calculated as:

F_BC = k * (q_B * q_C) / (r_BC^2),

where F_BC is the force between charge B and charge C, q_B is the charge of B, and r_BC is the distance between B and C.

Since the system is in electrostatic equilibrium, F_AC must be equal in magnitude but opposite in direction to F_BC. Therefore, we have:

F_AC = F_BC

k * (q_A * q_C) / (r_AC^2) = k * (q_B * q_C) / (r_BC^2)

Simplifying and rearranging the equation:

(q_A * q_C) / (r_AC^2) = (q_B * q_C) / (r_BC^2)

q_A / r_AC^2 = q_B / r_BC^2

1.0 C / (2.2 m - x)^2 = 2.0 C / (2.0 m + x)^2

Now we can solve this equation for x. Cross-multiplying and simplifying:

(2.0 C) * (2.2 m - x)^2 = (1.0 C) * (2.0 m + x)^2

4.0 C * (4.84 m^2 - 4.4 m x + x^2) = 2.0 C * (4.0 m^2 + 4.0 m x + x^2)

Expanding and simplifying:

19.36 C m^2 - 17.6 C m x + 4.0 C x^2 = 8.0 C m^2 + 8.0 C m x + 2.0 C x^2

Rearranging and simplifying further:

14.36 C m^2 - 25.6 C m x + 2.0 C x^2 = 0

Now we can solve this quadratic equation for x using the quadratic formula:

x = (-b ± √(b^2 - 4ac)) / (2a),

where a = 2.0 C, b = -25.6 C m, and c = 14.36 C m^2.

Solving this equation, we find two possible solutions for x:

x = 0.99 m and x = 1.01 m.

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Finding a suitable material for the filament of an incandescent light bulb was one of Thomas Edison's biggest obstacles.

The source of light in an incandescent light bulb is the filament, which is a wire-like structure. It is often constructed of tungsten or another material with a high melting point and good thermal shock resistance. When an electric current is sent through the filament, which is commonly twisted into a coil or loop shape, the filament heats up and starts to generate light.

Thermal radiation causes the filament to produce light. This is the result of the filament's temperature-related electromagnetic radiation output. The filament starts to emit infrared radiation and visible light as it warms up.

The filament's temperature and the kind of material it is constructed of affect the hue of the light it emits.

A glass bulb that has been evacuated or a bulb that has been filled with an inert gas, such as argon or nitrogen, surrounds the filament in an incandescent light bulb. By doing this, you can avoid the filament from burning out or breaking, which would make the lightbulb unusable.

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The speed of the melon as it flies off the performer's head is 0.3 m/s

The law of conservation of momentum states that for a system of colliding bodies, the total momentum before the collision is equal to the total momentum after the collision, provided there is no net external force acting on the bodies.

To find the speed of the melon, we use the formula from the law of conservation of momentum.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, The speed of the melon as it flies off the performer's head is 0.3 m/s.

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Answer:

Elastic potential energy

Hii :))

Force = mass × acceleration

630 = 45 × acceleration

630/45 = acceleration

14 m/s² = acceleration

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Gravity causes cast of gases to clump together to begin forming new stars and planets.

Gravity binds the gas and dust together. If the cluster is large enough, it produces a star—increased pressure from gravitational collapse boosts the temperature, forcing nuclear fusion to occur in its center.

The dust and gases in a nebula are widely dispersed, yet gravity can gradually bring clumps of dust and gas together. As these clusters grow in size, their gravity grows stronger and stronger. The clump of dust and gas eventually becomes so large that it collapses due to its own gravity.

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Answer:

Approximately \(0.21\; {\rm s}\) and then approximately \(4.8\; {\rm s}\), assuming that air resistance on the stone is negligible and that \(g = -10\; {\rm m\cdot s^{-2}}\).

Explanation:

Let \(h\) denote the height of the stone.

Let \(g\) denote the gravitational acceleration.

Let \(v_{0}\) denote the initial velocity of the stone. In this question, \(v_{0} = 25\; {\rm m\cdot s^{-1}}\).

Let \(t\) denote the time (measured in seconds) after the stone was thrown.

The following SUVAT equation relates these quantities:

\(\displaystyle h = \frac{1}{2}\, g\, t^{2} + v_{0}\, t\).

The value of height \(h\), gravitational acceleration \(g\), and initial velocity \(v_{0}\) are all known: \(h = 5\; {\rm m}\), \(g = (-10\; {\rm m\cdot s^{-2}})\), and \(v_{0} = 25\; {\rm m\cdot s^{-1}}\). Substitute these values into the equation to obtain a quadratic equation about time \(t\) (in seconds):

\(\displaystyle 5 = \frac{(-10)}{2}\, t^{2} + 25\, t\).

Simplify this equation to obtain:

\(t^{2} - 5\, t + 1 = 0\).

Solve this equation using the quadratic formula. The two roots of this quadratic equation about \(t\) are:

\(\displaystyle t_{1} \approx 0.20871 \; {\rm s}\), and

\(\displaystyle t_{2} \approx 4.79129 \; {\rm s}\).

Both roots are greater than \(0\) and are valid.

Answer:

See below

Explanation:

One rotation is 2 pi R

2 pi / 20 s = .314 R/s     ( or   pi / 10   R/s)

(NOTE: mass of the body is irrelevant)

Answer:

C

Explanation:

You will hear a lower pitch of sound than your teacher who is directly below the bell.

The pitch of a sound refers to how high or low the sound is. If a sound is high we say that it has a high pitch and vice versa.

We must note that the closer you are the bell the higher the pitch of the bell sound you hear. Hence, you will hear a lower pitch of sound than your teacher who is directly below the bell.

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Answer:

Joules

Explanation:

Potential energy is energy an object has because of its position relative to some other object. ... Notice that gravitational potential energy has the same units as kinetic energy, kg m2 / s2. In fact, all energy has the same units, kg m2 / s2, and is measured using the unit Joule (J).

Answer:

21.2 km

Explanation:

You're basically solving for the hypotenuse of a right triangle with legs of 15 and 15.  Use the pythagorean theorem:

d =  displacement vector

d² = 15² + 15² = 450

d = √450 = 21.2 km

Answer:

Try a Cold Pack. Use a Heating Pad or Hot Compress. Ease Pressure on Your Scalp or Head. Dim the Lights. Try Not to Chew. Hydrate. Get Some Caffeine. Practice Relaxation.

Answer:

Listen to calming music

Explanation:

Thats what I do. You could also sleep ;)

Answer:

For the first one shown, the answer is Directly Proportional, The second one is Inversly Proportional, and the last is fourtl times the original value

Using Rayleigh's method, a set of dimensionless ratios that can be used to correlate our data is the ratio of initial velocity to the square root of the product of acceleration due to gravity and height.

In order to find a set of dimensionless ratios to correlate the data in the given experiment, we can use Rayleigh's method. Rayleigh's method involves selecting a set of relevant physical quantities and combining them in such a way that the resulting ratios are dimensionless.

In this case, the relevant physical quantities are:

To create dimensionless ratios, we can choose combinations of these quantities that eliminate the units. One possible set of dimensionless ratios can be:

Ratio of initial velocity to the square root of the product of acceleration due to gravity and height:

v / √(gH)

Ratio of radius to height:

r / H

These dimensionless ratios can be used to correlate the data obtained from the experiment. By plotting these ratios against each other or against other relevant parameters, it may be possible to identify relationships or trends in the data that can be described using these dimensionless ratios.

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A differentiator circuit with a capacitor of 20 µF and a resistor of 50 Ω can produce an output of 6V when the input voltage changes by 3V in 100ms.

A differentiator circuit produces an output that is proportional to the rate of change of the input voltage. The circuit consists of a capacitor and a resistor. When the input voltage changes, the capacitor charges or discharges through the resistor, producing an output voltage.

The output voltage of a differentiator circuit is given by the formula:

Vout = -RC(dVin/dt)

where R is the resistance, C is the capacitance, Vin is the input voltage, and t is time.

To design a differentiator circuit that produces an output of 6V when the input voltage changes by 3V in 100ms, we can use the formula and solve for R and C. Rearranging the formula gives:

RC = -Vout/(dVin/dt)

Substituting the given values, we get:

RC = -6V/(3V/100ms) = -200ms

Let's assume a capacitance of 20µF, then the resistance can be calculated as:

R = RC/C = (-200ms * 20µF) / (20µF) = -200Ω

We can use a standard resistor value of 50Ω, which will give us a slightly higher output voltage of 6.25V.

Therefore, a differentiator circuit with a capacitor of 20 µF and a resistor of 50 Ω can produce an output of 6V when the input voltage changes by 3V in 100ms.

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The charge of this cylinder is calculated as 10.2 nC. The formula for the charge of a cylinder with uniform surface charge density is ; Q = (charge density) * (surface area) * (length).

Charge density = σ,

Surface area = 2πrh + 2πr²,

Length = l

Given : Radius, r = 2.33 cm, Length, l = 6.30 cm,

Charge density, σ = 13.8 n c/m²,

Surface area of cylinder = 2πrh + 2πr²  where; h = l (length)

Substitute the value of radius and height in the above formula, we get;

Surface area of cylinder = 2πr(l + r)

Surface area of cylinder = 2π(2.33 cm)(6.30 cm + 2.33 cm)

= 119.38 cm²

Charge density, σ = 13.8 nc/m²

= 1.38 × 10⁻⁵ C/cm²

Now, put the value of σ, surface area, and length in the formula to calculate the charge of cylinder as;

Q = σ * surface area * length

Q = (1.38 × 10⁻⁵ C/cm²) * (119.38 cm²) * (6.30 cm)

Q = 1.02 × 10⁻² C = 10.2 nC

Therefore, the charge of this cylinder is 10.2 nC (nanocoulombs).

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Answer:

B. The refridgerant

Explanation:

this allows the refrigerant to absorb or release heat

Answer:

The movement of a 2000-kg truck travelling at 19 m/s is 38,000 kgm/s.

Answer:

The answer is A and C.

Explanation:

Only two factors are relevant when dealing with the gravitational force between two objects - their mass and their distance apart from one another. Gravity's force is proportional to the product of the masses of the two objects and is inversely proportional to the square of the distance between them.

A wind of 180mph will place a force of 32400 Ib on a surface of 4ft².

The force of the wind blowing on a vertical surface varies jointly as the area of the surface and the square of the velocity.

If a wind of 60mph exerts a force of 20lb on a surface of 1/5 ft², how much force will a wind of 180mph place on a surface of 4ft²

A force of 1250lb is exerted

since the force of the wind varies jointly as the area of the surface and the square of the velocity,

let f = force

a = area

velocity =v

from the above statement, we find out that

f ∝ a * v²----1

that is  f = k * a * v²    -----2

where k is a coefficient of proportionality

since velocity of wind in mph, v =60

and force in lb = 20

and surface area = 1/5 ft²

from equation 2

20 = 1/5 * k * 60²

20 * 5 /3600 = k

25/9 = k

A wind of 180mph will place a force of on a surface of 4ft².

f = 25/ 9 *4 * 180²

f = 32400

Therefore, a wind of 180mph will place a force of 32400 Ib on a surface of 4ft².

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The largest voltage the battery can have without breaking the circuit at the supports is 626.71 V.

The magnetic field on a current-carrying conductor is determined by the flow of current through the conductor and the distance from the carrier.

Voltage is the pressure exerted by an electrical circuit’s power source through a conducting loop to push charged electrons (“current”) through an electrical circuit to perform a function, such as turning on a light.

Given,

The length of the metal bar = 54.0 cm or 0.54 m

mass of the bar = 740 g or 0.74 kg

magnetic field acting perpendicular to the bar = 0.450 T

resistance  = 26.0

Let the maximum potential in the battery be V and the current in the circuit be I. So

V= IR

V = 26×I

I = V/21

For the rod to be in its position the magnetic force on the rod must be equal to the weight. So

magnetic force = weight

B×I×L = mg

0.45 × V/21 × 0.54 m =  0.74 × 9.8

V = 626.71 V

Thus the largest voltage the battery can have without breaking the circuit at the supports is 626.71 V.

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It will take an additional 7.33 minutes for the cake to cool from 200 degrees F to 90 degrees F after the initial 10 minutes of cooling.

To calculate how much longer it will take for the cake to cool to 90 degrees F, we need to first determine the rate at which the cake is cooling. We can do this by calculating the temperature difference between the cake and the room and dividing it by the time it takes for that temperature difference to occur.
In this case, the temperature difference between the cake and the room is 280 degrees F (350-70=280) when the cake is removed from the oven. After 10 minutes, the temperature difference is 130 degrees F (200-70=130). Therefore, the cake is cooling at a rate of 15 degrees F per minute (280-130=150 degrees F in 10 minutes; 150/10=15).
To determine how much longer it will take for the cake to cool to 90 degrees F, we need to calculate the time it takes for the temperature to drop from 200 degrees F to 90 degrees F. This is a temperature difference of 110 degrees F (200-90=110), so it will take approximately 7.33 minutes (110/15=7.33) for the cake to cool from 200 degrees F to 90 degrees F.

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