Classical mechanics describes the motion of objects on a macroscopic scale, while quantum mechanics deals with the behavior of particles on a microscopic scale. Classical mechanics is deterministic, meaning that it predicts precise outcomes based on initial conditions, while quantum mechanics is probabilistic, providing probabilities of different outcomes. Classical mechanics follows the principle of causality, where every effect has a specific cause, whereas quantum mechanics introduces inherent uncertainty and wave-particle duality. Classical mechanics is well-suited for describing everyday objects, while quantum mechanics is necessary to explain the behavior of particles at the atomic and subatomic levels.
~~~Harsha~~~
Which of the following is a vector quantity
weight
temperature
acceleration
distance
Answer:
weight, acceleration
Explanation:
weight = mass x gravity(meaning the direction of the mass)
acceleration = v-u/t
v-u is the change in velocity
Determine the energy released per kilogram of fuel used.
Given MeV per reaction, calculate energy in joules per kilogram of reactants.
Consider 1 mile of tritium plus 1 mole of deuterium to be a mole of "reactions" ( total molar mass = 5 grams)
The energy released per kilogram of fuel used is 3.39 * 1014 J/Kg
Why is the energy released in a reaction?Energy is released in a reaction because of the breaking of bonds are well as formation of bonds.
The quantity of energy released in reactions differs according to the reaction type involved.
The energy released in nuclear reactions are far larger than that released in chemical reactions due to the release of nuclear energy from the nucleus.
The energy, E released in nuclear reactions is given by the formula below:
Energy per kilogram of reactants (in joules) = Energy per mole of reactants (in joules) / Total molar mass of reactants (in kg)
Energy per kilogram of reactants (in joules) = [tex]1.60218 x 10^-^1^3 joules[/tex] / 5 grams
Energy per kilogram of reactants (in joules) = 3.39 * 1014 J/Kg
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The energy released per kilogram of fuel used is 5.632 × 10^-14 J/kg.
5 grammes, 0.005 kilogrammes, of reactants are provided.
Since 1 mile of tritium and 1 mile of deuterium are equal to 1 mole of "reactions," the sum of the "reactions" in 0.005 kilogrammes of reactants may be computed as follows:
Total moles of "reactions" in 0.005 kg of reactants = (0.005 kg / 5 g/mol)
= 0.001 mole.
The MeV per reaction must now be multiplied by the total number of "reactions" in order to get the total energy released by the "reactions."
Next, the energy must be converted from MeV to Joules.
MeV to Joules conversion factor is 1.6 10-13 J/MeV.
Total energy released = (MeV per reaction) x (number of reactions) x (conversion factor)
Total energy released = (17.6 MeV/reaction) x (0.001 mole) x (1.6 × 10^-13 J/MeV)
Total energy released = 2.816 × 10^-16 J
The total energy released by the "reactions" is 2.816 × 10^-16 J.
To determine the energy released per kilogram of fuel used, we need to divide the total energy by the mass of fuel used.
Total energy released per kilogram of fuel used = (total energy released) / (mass of fuel used)
Total energy released per kilogram of fuel used = (2.816 × 10^-16 J) / (0.005 kg)
Total energy released per kilogram of fuel used = 5.632 × 10^-14 J/kg
Therefore, the energy released per kilogram of fuel used is 5.632 × 10^-14 J/kg.
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How does uplift change the surface of Earth?
Answer options with 4 options
A.
Snow melts on the surface of Earth, causing rivers to form.
B.
Magma rises from the surface of Earth, causing lava beds to form.
C.
Wind blows across the surface of Earth, causing sand dunes to form.
D.
Pressure builds under the surface of Earth, causing mountains to form.
Pressure builds under the surface of Earth, causing mountains to form.The correct answer is option D.
Uplift refers to the geological process that elevates the Earth's surface, resulting in the formation of mountains. This process is primarily driven by tectonic forces, including the movement and collision of Earth's lithospheric plates.
When two plates converge, immense pressure builds up beneath the surface, causing the crust to buckle and fold. This deformation leads to the formation of mountains, as rocks are pushed upward and displaced vertically.
As the uplift process continues over millions of years, mountains gradually take shape. Erosion and weathering play significant roles in shaping their features, but it is the initial uplift that initiates the formation of mountains.
As the Earth's surface is elevated, a wide range of landforms can emerge, including rugged peaks, deep valleys, and steep slopes.
Uplift has a profound impact on the Earth's surface and ecosystems. Mountains alter local climates, influencing precipitation patterns and creating variations in temperature and wind patterns.
Therefore, uplift plays a crucial role in shaping the Earth's surface and influencing various geological, biological, and climatic processes.
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How does the authors word choice when describing the wolves impact tone of the passages?
However, based on the given options, the most appropriate choice would be:
B. It creates a neutral tone.
How tones inmapct passageA neutral tone suggests that the author's word choice does not lean towards a specific emotional or judgmental stance. Instead, the author presents information about the wolves objectively, without exaggerated or dramatic language.
This choice implies that the author's word choice does not evoke a surreal, realistic, or patronizing tone, but rather maintains a balanced and impartial tone.
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An Eagar resident is driving down the road late at night at a velocity of 14 m/s. Suddenly an elk runs out in front of the car and the driver slams on the brakes. If the car comes to a stop (velocity final = 0 m/s) in 32 m, what is the acceleration of the car?
The acceleration of the car is approximately -3.06 m/s^2.
To find the acceleration of the car, we can use the kinematic equation:
v^2 = u^2 + 2as
Where:
v = final velocity = 0 m/s
u = initial velocity = 14 m/s
a = acceleration (to be determined)
s = displacement = 32 m
Plugging in the values into the equation, we can solve for acceleration:
0^2 = 14^2 + 2a(32)
Simplifying:
0 = 196 + 64a
Rearranging the equation:
64a = -196
Dividing both sides by 64:
a = -196/64
a ≈ -3.06 m/s^2
This means that every second, the car's velocity decreases by 3.06 meters per second. The negative sign indicates that the acceleration is in the opposite direction of the initial velocity, opposing the car's motion and bringing it to a stop.
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Two objects gravitationally attract with force of 1,926N. If mass 1is multiplied by 0.38,mass2 is multiplied by 3.21, and the distance is multiplied by 2.25,the new force of attraction is:
The new force of attraction is found to be 813.25 N.
How do we calculate?We that F_ = G * (m1 * m2) / r²
F_ = force of gravitational attraction,
G = gravitational constant = [tex]6.67430 * 10^-^1^1[/tex]N(m/kg)²
m1 and m2 = masses of the two objects, and
r = distance between the centers of the two objects.
new mass = 0.38 * m1
new mass = 3.21 * m2_o
new distance = 2.25 * r
new force = F * (m1 * m2) / (m1 * m2) * (r² / r²)
new force= 1926 N * (0.38 * m1_original * 3.21 * m2_original) / (m1_original * m2_original) * (r_original²/ (2.25 * r_original)²)
new force = 1926 N * 0.38 * 3.21 / (2.25²)
new force = 813.25 N
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What is the wavelength of the standing wave?
Choose 1 answer:
From the image, the option that we should choose is option F; None of these.
What is the wavelength?
The distance between two consecutive points that are in phase or have the same displacement and are situated on either side of a standing wave is referred to as its wavelength. In other words, it represents the duration of a single wave cycle.
The length of the medium and the boundary conditions influence the wavelength for a standing wave on a string or in a medium.
Since we do not have the difference between two crests and troughs hence the answer ought to be none of these.
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Which of the following is true at the point where you reach the top of your jump on a trampoline?
The mechanical energy is zero
he potential energy is at maximum
The kinetic energy and potential energy are equal.
The potential energy is zero.
The potential energy is at the maximum when you reach the top of your jump on a trampoline. The correct answer is option B.
What is Potential EnergyPotential Energy is the type of energy an object possesses by virtue of its position relative to others, stresses within itself, electric charge, and other factors. Potential energy exists in various forms, including gravitational potential energy, elastic potential energy, chemical potential energy, and electrical potential energy.
This type of energy can be converted into another type of energies. Examples, a charged battery has potential energy and it can be used as electrical potential energy. Petrol, diesel and and gas have chemical potential energy and be used as kinetic energy.
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A circle loop of radius 2 m is positioned in a uniform magnetic field of magnitude 1.5 N/C so that the plane of the loop makes an angle of 65° with the magnetic field. Find the flux passing through the circle loop.
The flux through the circle loop of wire is determined as 7.96 N/C.m².
What is the flux passing through the circle loop?The flux through the circle loop of wire is calculated by applying the following formula.
Ф = EA cosθ
where;
B is the magnitude of the electric fieldA is the area of the circular loopθ is the direction of the loopThe area of the wire is calculated as follows;
A = πr²
A = π (2 m)²
A = 12.57 m²
The flux through the circle loop of wire is calculated as;
Ф = EA cosθ
Ф = 1.5 x 12.57 x cos (65)
Ф = 7.96 N/C.m²
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If the parallel circuit had 23 amps with the same resistance, what will be the voltage
If the parallel circuit had 23 amps with the same resistance, the voltage will be V = 23 amps * R.
To determine the voltage in a parallel circuit with a given current and resistance, we can use Ohm's Law, which states that the voltage (V) is equal to the current (I) multiplied by the resistance (R).
In this case, if the parallel circuit has a current of 23 amps and the same resistance as before, we can use the same resistance value as before to calculate the voltage.
Ohm's Law equation: V = I * R
Given:
Current, I = 23 amps
Resistance, R (same as before)
Substituting the values into the equation, we have:
V = 23 amps * R
Therefore, The specific value of resistance (R) is not provided in the question, so the voltage (V) cannot be determined without knowing the resistance value. If the resistance value is provided, you can substitute it into the equation to calculate the voltage.
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A string of length
�
LL vibrates to form a standing wave with two antinodes as shown below.
The wavelength of the standing wave is 2L. Option B
What is the wavelength of a standing wave with one antinode?The wavelength of a standing wave with a single antinode is equal to the distance between the antinodes next to it. The wave's highest displacement occurs at the antinodes.
The wavelength () of the standing wave can be expressed as follows if we refer to the separation between neighboring antinodes as d:
λ = 2L
Therefore, the wavelength of a standing wave with a single antinode is equal to double the distance between adjacent antinodes.
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