What is the angular diffraction limit (θ) of the following objects at 1 micron (1μm = 10^-6 m)? Express in degrees, arcminutes, or arcseconds.
The human eye: D = 3 mm

Refraction is the process of bending a light ray when light ray enters from one medium to another. When the light ray enters from a rarer to denser medium the speed of light decreases.

1)The laser beam when passed from air to glass is called refraction of light rays. The laser beam enters from a rarer to denser medium the speed of light gets decreases.

2) Refraction of light rays occurs when a light ray enters from a rarer to a denser medium. Air medium is the rarer medium and glass is the denser medium and hence refraction takes place.

3) When a light ray hits the glass, it gets reflected. Reflection is the process of bouncing back of light and the path of light gets changed.

4) When the light comes in contact with the dense medium, refraction is more, and hence the ray is bent away from the normal or the ray gets deviated away from the normal and the light ray bends.

5)When a light ray hits a prism and raindrops, the dispersion phenomenon takes place. Dispersion is the process of splitting white light into its constituent colors.

6) Dispersion is the process of splitting white color into seven different colors with respect to its wavelength and a rainbow is observed.

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1.04  m/s^2 acceleration of the seed, assuming that it does not slip and  0.04862 minimum coefficient of static friction required for the seed not to slip during the acceleration period.

rotational speed turntable N = 33 rev/min

r = 9.4 cm =0.09m

 w = 2πN / 60

w = 2π×33 / 60

w = 3.456 rad/s

α = w^2 × r

α = 3.456^2 ×0.09

α = 1.04 m/s^2

N - W = 0

N = W = mg

Ff = ma

umg = m

u = a / g

u = 0.477 / 9.81

u = 0.04862

Acceleration is the rate of change in a moving object's speed and direction over time. When anything moves faster or slower, it is considered to be accelerating. Motion on a circle increases even while the speed is constant because the direction is always changing.

Since acceleration has both a magnitude and a direction, it is a vector quantity. Velocity is a vector quantity as well. The definition of acceleration is the change in velocity vector during a time interval divided by the time interval.

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Answer:

the answer is b.

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Answer:

a. Light bulb - electrical to light

b. Firework - chemical to light / thermal / sound

c. Flute - kinetic to sound

d. Leaf-  solar to chemical

Answer:

4 m/s or 4 meters per second.

Explanation:

In order to calculate the speed of wave, you multiply the wavelength in meters and the frequency of the Wave in Hertz. 2 times 2 equals 4. The wave speed is always in m/s considering that the wavelength is also in meters.

Answer:

precipitation and tempurature

Explanation:

i just took the quiz

Answer:

B.precipitation

C.temperature

Explanation:

hope this helps! :D

When a volleyball is tossed over a net, starting from a height of 1.5 meters above the ground, where  after reaching the top of its trajectory it returns to its original height as it falls, the ball's speed is the same as when it was tossed, but its velocity is different.

As ball 1 gets to the top of its trajectory, its velocity becomes zero.

since not stated otherwise, we assume that both balls have the same properties

If ball 2 is released at this instance, then they both will travel down at the same time interval and have initial velocity as zero.

since vertical travel is downwards, then acceleration due to gravity g is positive for both balls.

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The speed of the moving train can be determined using the formula for the Doppler effect. By considering the observed beat frequency and the frequency of the stationary train's whistle, we can calculate the speed of the moving train relative to the conductor.

The beat frequency observed by the conductor is caused by the difference in frequencies between the whistles of the stationary train and the moving train. The beat frequency (\(f_{beat}\)) can be calculated using the formula:

\(f_{beat}\) = | \(f_{source}\) - \(f_{observer}\) |

In this case, the frequency of the stationary train's whistle ( \(f_{source}\) ) is 508 Hz, and the beat frequency observed (\(f_{beat}\)) is 4.5 Hz.

By rearranging the formula, we can determine the frequency observed by the conductor (\(f_{observer}\)):

\(f_{observer}\) =  \(f_{source}\) - \(f_{beat}\)

Substituting the given values, we find:

\(f_{observer}\) = 508 Hz - 4.5 Hz = 503.5 Hz

The observed frequency is lower than the frequency of the stationary train's whistle because the moving train is approaching the conductor. The Doppler effect causes a decrease in frequency when the source is moving toward the observer.

The Doppler effect formula for frequency is given by:

\(f_{observer}\) =  \(f_{source}\) * (\(v_{sound}\) + \(v_{observer}\)) / (\(v_{sound}\) + \(v_{source}\) )

Assuming the speed of sound (\(v_{sound}\)) is constant, and the speed of the conductor ( \(v_{observer}\)) is negligible compared to the speed of the moving train, we can simplify the equation to:

\(f_{observer}\) = \(f_{source}\) * ( \(v_{sound}\) / ( \(v_{sound}\) + \(v_{source}\)))

Rearranging the equation to solve for the speed of the moving train (\(v_{source}\)), we get:

\(v_{source}\) = \(v_{sound}\) * (\(f_{source}\) / \(f_{observer}\) - 1)

Substituting the known values, with the speed of sound typically around 343 m/s, we can calculate the speed of the moving train.

Hence, the speed of the moving train can be determined by plugging the values into the equation: \(v_{source}\) = 343 m/s * (508 Hz / 503.5 Hz - 1).

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Answer:

Crumple Zones are parts of a car that are designed to deform and absorb large amounts of energy from car collisions and impacts. This helps reduce the force that acts on the driver in a car accident [1]. 2: Newton's Second Law states that Force= Mass x Acceleration

Explanation:

The 0.4 kg, 0.5 m radius ball rolling without slipping indicates that the rotational and translational kinetic energy are as follows;

a. The rotational kinetic energy = 0.02·ω²

b. The translational kinetic energy = 0.2·v²

c. The total kinetic energy is 0.28·v²

Rotational kinetic energy is the energy a body possesses due to the rotation of the object about an axis around which the object rotates

a. The formula for the rotational kinetic energy is presented as follows;

\(K.E_{Rotational}= \dfrac{1}{2}\cdot I\cdot \omega^2\)

Where;

I = The moment of inertia of the body around the axis of rotation

ω = Angular velocity of the body

The moment of inertia of the spherical ball is found using the formula;

\(I =\dfrac{2}{5} \cdot m\cdot r^2\)

Where;

m = The mass of the ball = 0.4 kg

r = The radius of the ball = 0.5 m

Therefore;

\(I =\dfrac{2}{5} \times 0.4\times 0.5^2 = 0.04\)

The moment of inertia of the ball is I = 0.04 m³

\(K.E_{Rotational}= \dfrac{1}{2}\times 0.04\cdot \omega^2= 0.02 \cdot \omega^2\)

The rotational kinetic energy of the ball is 0.02·ω²

b. The translational kinetic energy is K.E. = 0.5·m·v²

The translational kinetic energy is therefore;

Translational K.E. = 0.5 × 0.4 × v² = 0.2·v²

c. The total kinetic energy, K.E. = Translational K.E. + \(K.E_{Rotational}\)

K.E. = 0.2·v² + 0.02·ω²

\(K.E. = 0.2\cdot v^2 + 0.02\cdot \left(\dfrac{v}{r} \right)^2\)

= 0.5 m

\(K.E. = 0.2\cdot v^2 + 0.02\cdot \left(\dfrac{v}{0.5} \right)^2 = \dfrac{7}{25} \cdot v^2 = 0.28\cdot v^2\)

The total kinetic energy is K.E. = 0.28·v²

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Resistance(R) of a device is given by

Final answer is :- 2.67 ohm

Signals generated by transducers are normally of the order of microvolts to millivolts.

What are transducers?

Transducers are electrical components that transform energy from one form into another. They are electrical sensors that generate an electrical signal based on the quantity being assessed.

A transducer is a device that transforms a physical quantity such as force, pressure, or temperature into an electrical signal. This electrical signal can then be amplified, filtered, or measured in other ways.

Some common examples of transducers include microphones, strain gauges, accelerometers, and thermocouples.

What are the signals generated by transducers?

The signals generated by transducers are normally of the order of microvolts to millivolts. The magnitude of the signal generated depends on the quantity being assessed, as well as the type and sensitivity of the transducer.

In order to use the signal generated by a transducer, it is usually necessary to amplify and filter the signal to remove noise and unwanted frequencies. This can be done using an amplifier or other signal processing equipment.

Overall, the signals generated by transducers are a crucial part of many electronic systems and are used in a wide variety of applications.

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Answer:

A proton has a positive charge :)

A neutron has no charge because it is neutral :)

Have a great day!!

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A proton is positively charged while a neutron has no charge at all.

Answer:

118,000 J

Explanation:

The law of conservation of energy states that the total energy in a system remains constant, it can be transformed from one form to another, but the total energy remains the same.

Given that the total energy of the object is 210,000 J, and its potential energy at a certain point along the track is 92,000 J, we can use the law of conservation of energy to find the kinetic energy of the object at that point.

The total energy of the object is equal to the sum of its kinetic energy (KE) and its potential energy (PE):

E_total = KE + PE

Substituting the given values:

210,000 J = KE + 92,000 J

Solving for KE:

KE = 210,000 J - 92,000 J = 118,000 J

So, the object has a kinetic energy of 118,000 J at the same point where its potential energy is 92,000 J.

This follows the law of conservation of energy because the total energy of the object remains constant, and the change in potential energy is equal to the change in kinetic energy.

When you are standing on a scale in a fast elevator that is taking you to the top of a tall building and the elevator slows down as it reaches the top, the apparent weight would decrease as the elevator decelerates.

The weight that you sense is the force with which your body presses on the scale, and this is equal to the gravitational force acting on your body. The gravitational force is constant, but the normal force that the scale exerts on you is not. The scale exerts a normal force on you that equals your weight when the elevator is stationary. When the elevator accelerates, the normal force increases and becomes greater than your weight. When the elevator decelerates, the normal force decreases and becomes less than your weight.

As a result, your apparent weight decreases as the elevator decelerates. An apparent weight is the perceived weight of an object due to the forces acting on it, such as gravity, buoyant force, or air resistance. In this case, the change in apparent weight is due to the change in the normal force acting on the body.

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The answer are energy used by the 600-watt toaster for 6.0 min is 0.06 kWh (kilowatt-hours).

To solve the problem, we must first calculate the power of the toaster and the time it is in use. The toaster's power is given to be 600 watts, and the time it's in use is 6 minutes.

The formula for calculating energy is given below. Energy = Power x Time Energy = 600 x 6 Joules

Using the conversion factor, we can convert joules to kilowatt-hours (kWh).1 kWh = 3.6 x 10^6 J

Now, we can find out the energy used in kilowatt-hours.

Energy = 600 x 6 / (3.6 x 10^6) kWh Energy = 0.06 kWh

Hence, the energy used by the 600-watt toaster for 6.0 min is 0.06 kWh (kilowatt-hours).

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The nuclear reaction becomes:

U₉₂²³⁸ → Th₉₀²³⁴+ α⁴₂

Thus, here (i) 234 and (ii) 90

Uranium-238 decays to thorium-234 via alpha decay. (The numbers after the chemical names indicate the number of protons and neutrons.) Uranium-238 loses two protons and two neutrons in this process, forming the isotope thorium-234.

Reactors based on thorium are safer since the reaction is simple to stop and does not need to be carried out under intense pressure. When compared to uranium reactors, thorium reactors produce significantly less waste, and the waste produced is far less radioactive and far shorter in duration.

Now, here (i) 234 and (ii) 90

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Answer:

(i) 234 and (ii) 90

The dog team does 250,000 Joules of work while pulling the sled 1000 meters at a constant speed.

The work done by the dog team pulling the sled:

The work done is given by the formula:

Work = Force × Distance × cos(Θ)

The applied force can be calculated as the sum of the force required to overcome the friction and the force required to maintain a constant speed.

Force(friction) = coefficient of kinetic friction × Normal force

Normal force = weight of sledge = 5000 N

Force(friction) = 0.05 × 5000  = 250 N

Force(applied) = Force(friction) = 250 N

Work = Force(applied) × Distance

Work = 250  × 1000

Work = 250,000 Nm

Work =  250,000 Joules

Therefore, the dog team does 250,000 Joules of work while pulling the sled 1000 meters at a constant speed.

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By 0.27m, the kitchen is farther than the hallway. Because Kim's home's hallway is 4.63 metres long. The distance of her kitchen is 0.0049 kilometres. The distance is same in any velocity.

Distance is measured numerically or sporadically qualitatively. far apart certain things or points are. Distance in physics or common language can refer to a physical length or an assumption based on other factors. Purposes In disciplines that study human behaviour, such the social sciences, qualitative measurements are frequently used. The rate of change in an object's position relative to a frame of reference is called velocity, and it depends on time.

4.9m is equal to 0.0049 km;

the difference is equal to 4.9 - 4.63;

and the difference is equal to 0.27.

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The estimated age of the solar system is 4558 million years,

with N = 4.558.

The exponent n is a number that represents the power to which the base number is raised.

The exponential function is represented as xn, where x is the base and n is the exponent.

The question seeks to determine the value of n given N and the estimated age of the solar system.

The formula for calculating the value of n is:

N = 10n
Taking the logarithm of both sides, we get:
log(N) = log(10n)
Using the rule of logarithm, log(a^b) = b log(a), we can rewrite the equation as:
log(N) = n log(10)

Since log(10) = 1, we have:
n = log(N)

Substituting N with the estimated age of the solar system, we get:
n = log(4.558)

Using a calculator, we find that log(4.558) is approximately 0.6609.

the value of the exponent, n, is approximately 0.6609.

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The amount of fluid that moves past a point in area A per unit of time is known as the flow rate.

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The frequency of the accelerating voltage needed for a proton in a 1.15-t field is 28.1 MHz.

The cyclotron frequency is

f = qB/2πm

where f is the frequency in Hertz (Hz),

q is the charge of the proton in Coulombs,

B is the magnetic field strength in Tesla, and

m is the mass of the proton in kilograms.

For a proton, the charge is q = 1.602*10⁻¹⁹ C,

and the mass is m = 1.673*10⁻²⁷ kg.

If the magnetic field strength is given as B = 1.15 T, then we can plug in the values into the formula and calculate the frequency:

f = (1.602*10⁻¹⁹ C)(1.15 T)/(2π)(1.673*10⁻²⁷kg)

= 28.1 MHz

Therefore, the frequency of the accelerating voltage needed for a proton in a 1.15 T field is approximately 28.1 MHz.

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Answer: Load carrying heavy vehicles have large number of wheels in order to reduce pressure on the contact patch on road. With large number of wheels, it becomes easy to distribute the entire pressure of loads in an even manner.

Explanation:

Answer:

mars is a fourth planet of the sun and the second planet in the solar system

moon is a natural satellite of the earth it isthe fifth largest moon in the solar system

The best answer ""The planets and sun all formed from a cloud of gas and dust that contracted as it cooled. As the cloud contracted, its spin increased and it flattened. By the time the planets formed, the cloud was a flat spinning disk.""

This explanation is based on the widely accepted theory of solar system formation called the nebular hypothesis. According to this hypothesis, the solar system formed from a rotating cloud of gas and dust known as the solar nebula. As the nebula contracted due to its own gravity, it began to spin faster and flatten into a spinning disk.

Because the initial cloud had a particular rotation and flattened shape, the resulting planetary system inherited these characteristics. The conservation of angular momentum caused the protoplanetary disk to form a nearly flat plane, and the counterclockwise direction of rotation was also preserved. This is why the planets have orbits in the same plane and in the same counterclockwise direction when viewed from above the Earth's North Pole.

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Answer:

For changing the speed from m/s to km/h we just have to multiply the number with

18

5

So,

Here speed given is 6 m/s

To convert it into km/h =

6

×

18

5

=

21.6

km/h

Hence the correct answer is 21.6 km/h