find an expression for the thermal average energy of the system allow the possibility that the orbital at 0 and at may be occupied each by one particle

According to question, If Ann runs 800 metes with sandbags it will take 2 more minutes then Ann's speed for running with sandbags is 160 meters per minute.

A scalar quantity, speed is defined as the size of the change in an object's location over time or the size of the change in the position of an object per unit of time.

Use formula

speed = distance / time

speed without sandbags = 800 meters / 3 min.

speed without sandbags = 266.67 meters per min.

Now, let's find Ann's time to run 800 meters with sandbags:

time with sandbags = 3 minutes + 2 minutes = 5 minutes

speed with sandbags = 800 meters / 5 minutes

speed with sandbags = 160 meters per minute

Therefore, Ann's speed for running with sandbags is 160 meters per minute.

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Answer:

There are four natural states of matter: Solids, liquids, gases and plasma.

Explanation:

The fifth state is the man-made Bose-Einstein condensates. In a solid, particles are packed tightly together so they don't move much.

Given the following information:Mass of the system, m = 20 kg.Damping coefficient, b = 6 Ns/m.Force, F = 90 N.Frequency of applied force, f = ?Applied force angular frequency, w = 6 rad/s.Forced vibration equation:F(t) = F0 sin(wt)where F0 = 90 N and w = 6 rad/s.Under the action of the force F, the mass m will oscillate.The equation of motion for the mass-spring-damper system is given by:$$\mathrm{m\frac{d^{2}x}{dt^{2}}} + \mathrm{b\frac{dx}{dt}} + \mathrm{kx = F_{0}sin(\omega t)}$$where k is the spring constant.x(0) = 0 and x'(0) = 0.As we have the damping coefficient (b), we can calculate the damping ratio (ζ) and natural frequency (ωn) of the system.Damping ratio:$$\mathrm{\zeta = \frac{b}{2\sqrt{km}}}$$where k is the spring constant and m is the mass of the system.Natural frequency:$$\mathrm{\omega_{n} = \sqrt{\frac{k}{m}}}$$where k is the spring constant and m is the mass of the system.Resonant frequency:$$\mathrm{\omega_{d} = \sqrt{\omega_{n}^{2}-\zeta^{2}\omega_{n}^{2}}}$$At resonance, the amplitude of the system will be maximum when forced by a sinusoidal force of frequency equal to the resonant frequency.Resonant frequency:$$\mathrm{\omega_{d} = \sqrt{\omega_{n}^{2}-\zeta^{2}\omega_{n}^{2}}}$$$$\mathrm{\omega_{d} = \sqrt{(6.57)^{2}-(-2.88)^{2}} = 6.98 rad/s}$$Hence, the frequency of applied force at which resonance will occur is 6.98 rad/s.

The frequency of the applied force at which resonance will occur is ω = 2√5 rad/s.

To determine the frequency of the applied force at which resonance will occur, resonance happens when the frequency of the applied force matches the natural frequency of the system. The natural frequency can be determined using the formula:

ωn = √(K / M),

where ωn is the natural frequency, K is the spring constant, and M is the mass of the system.

Substituting the given values of K = 400 N/m and M = 20 kg into the equation, we can calculate the natural frequency ωn.

ωn = √(400 N/m / 20 kg) = √(20 rad/s²) = 2√5 rad/s.

Therefore, the frequency of the applied force at which resonance will occur is ω = 2√5 rad/s.

The correct question is given as,

M= 20kg

Fo = 90 N

ω = 6 rad/s

K = 400 N/m

C = 125 Ns/m

Determine the frequency of applied force at which resonance will occur?

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Most crashes occur at intersections because Drivers fail to search and identify a safe path of the travel when approaching an intersection. Drivers don't identify or understand the risks. Drivers fail tp develop good driving habits to effectively manage the risks.

Most crashes occur at intersections because of the following reason:

1) Drivers fail to search and identify a safe path of the travel when approaching an intersection.

2) Drivers don't identify or understand the risks.

3) Drivers fail tp develop good driving habits to effectively manage the risks.

Thus, Most crashes occur at intersections because all of the above reason. Most crashes occur at intersections because Drivers fail to search and identify a safe path of the travel when approaching an intersection. Drivers don't identify or understand the risks. Drivers fail tp develop good driving habits to effectively manage the risks.

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Answer:

65degrees

130degrees

Explanation:

In reflection, the angle of incidence(i) is the same as the angle of reflection (r)

Given that

Angle of reflection is 65degrees

Hence

i=r = 65degrees

Angle that angle made by the incident and reflected rays = i+r = 65+65

Angle that angle made by the incident and reflected rays = i+r = 130degrees

Answer:If you add a proton to the atom, it becomes beryllium (atomic number = 4).

It is an ion with a +1 charge, since the number of protons (4) no longer equals

the number of electrons (3).

So you have a beryllium +1 ion - the best answer choice is C.

Explanation:if this isn’t right I am so sorry

Answer:

Well this would be science... not physics...

Explanation:

1) both are a product of cooling lava/magma

2) Both stones can be caused during volcanic eruptions or clastic flow

3) Both are igneous in family (duh)

4) Intrusive rocks are formed underground from seeping into crevasses and are slow cooling and extrusive rocks are fast or instant cooling and cool above the surface (if differences are needed)

Answer:Magnitude of the car's acceleration is 3.5 m/s²

Given:

Mass of car = 1,000 kg

Net force applied by car = 3,500 N

Find:

Magnitude of the car's acceleration

Computation:

Net force = Mass × Acceleration

So,

3,500 = 1,000 × Acceleration

Acceleration = 3,500 / 1,000

Acceleration = 3.5 m/s²

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Answer:

1. 7.105 kg    2. 69.629 N    3. 7.105 kg    4. 11.368 N

Explanation:

Firstly the main point is that " mass " is independentnof the the place wheather it is no earth or moon or some else place.

So mass is

   W = mg

    27 = m 3.8

     m =7.105 kg

1. Mass on Earth :

     m = 7.105 kg

2. Weight on Earth:

    W=mg

    W=7.105 × 9.8

   W = 69.629 N

3.Mass on Moon:

   m = 7.105 kg

4. Weight on Moon:

    W =mg

    W =7.015 ×1.6

    W= 11.368 N

Answer:

ii is the correct option for the question

Fluid Pressure exerted by water will be = 980000 Pa

The pressure at any given point of a non moving fluid is called Fluid pressure . It is the increase in pressure at increasing depths in a liquid . It can be calculated by using the equation , Fluid Pressure = density of fluid  * acceleration due to gravity * depth in fluid

Fluid pressure = rho * g * h

              = 1000 kg/m^3 * 9.8m/s^2 * 100m

              = 980000 Pa

Fluid Pressure exerted by water will be = 980000 Pa

correct option iv) 980000 Pa

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Answer: A radio wave is generated by a transmitter and then detected by a receiver. An antenna allows a radio transmitter to send energy into space and a receiver to pick up energy from space. Transmitters and receivers are typically designed to operate over a limited range of frequencies.

Explanation:

In the new classification scheme, Vesta is not classified as a dwarf planet because it does not meet the specific criteria established for dwarf planets.

According to the International Astronomical Union (IAU), an object must meet three conditions to be classified as a dwarf planet.

1. It must orbit the Sun: Vesta orbits the Sun, so it satisfies this condition.

2. It must be spherical: Vesta is not spherical, but rather has an irregular shape. It is more like an oblong or elongated shape. This is in contrast to dwarf planets like Pluto and Eris, which have a more rounded shape due to their gravitational forces.

3. It must not have cleared its orbit of other debris: This means that the object should have a relatively clear path around the Sun without any significant debris or other objects in its vicinity. Vesta does not meet this criterion as it is located in the asteroid belt, which is populated with numerous other asteroids.

Based on these criteria, Vesta does not qualify as a dwarf planet. It is instead classified as a protoplanet or a large asteroid due to its irregular shape and its location in the asteroid belt.

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Free fall is the motion of an object in a gravitational field, where gravity is the only force acting upon it. It is different from movement in the y-direction because in free fall, the object's speed and direction of motion is constantly changing, whereas in the y-direction the object moves at a constant speed. It is also different from movement in the x-direction because the object experiences no acceleration in the x-direction. Examples of free fall include an apple falling from a tree, or a person skydiving from an airplane.

Free fall refers to the motion of an object that is falling due to gravity with no other forces acting on it except for the force of gravity. The movement in the y-direction refers to the vertical movement of an object. Movement in the x-direction refers to the horizontal movement of an object. The following are the differences between free fall and movement in the y and x directions.

Free fall vs movement in y-direction

In free fall, the object falls freely with no other force acting on it except gravity. However, in the movement in y-direction, the object can either be rising, falling, or staying still due to the presence of other forces like air resistance or thrust. For instance, when a ball is thrown into the air, it moves in the y-direction, but eventually, it stops rising and starts falling due to the force of gravity.

Free fall vs movement in x-direction

In free fall, the object falls vertically with no horizontal movement. However, in movement in the x-direction, the object moves horizontally with no vertical movement. For example, when a ball is thrown horizontally, it moves in the x-direction but does not experience any vertical movement.  

Examples

A few examples of free fall are an apple falling from a tree, a skydiver falling from a plane, and a stone falling from a cliff.

A few examples of movement in the y-direction are an airplane taking off, a rocket launching into space, and a ball thrown into the air.

A few examples of movement in the x-direction are a car moving along a straight road, a roller coaster moving along a straight track, and a person walking in a straight line.

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Since these three vehicles would all go the same speed at the bottom if released from the same height, they would not all possess the same amount of kinetic energy because they have different amounts of potential energy.

Kinetic energy is dependent on the velocity of the object as well as its mass. Therefore, the three vehicles, though they have the same speed, would differ in their kinetic energy due to their varying mass. This concept is known as mechanical energy and is the sum of kinetic and potential energy.

Mechanical energy is also constant in an ideal situation where no external forces are acting upon the object. For instance, the three vehicles will all have the same mechanical energy at the release point but would not possess the same amount of kinetic energy due to their mass difference. Therefore, they would have different amounts of potential energy when released.

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Answer:

t = 3.29 seconds

Explanation:

It is given that,

Height of the Eiffel tower is 60 m

Initial speed of a euro, u = 2 m/s

It will move under the action of gravity in the downward direction. Firstly, we can find the final velocity as follows :

\(v^2-u^2=2ad\\\\v=\sqrt{u^2+2ad} \\\\v=\sqrt{(2)^2+2\times 9.81\times 60} \\\\v=34.36\ m/s\)

Let t is the time taken by the euro to hit the ground. It can be calculated as :

\(v=u+at\\\\t=\dfrac{v-u}{a}\\\\t=\dfrac{34.36-2}{9.81}\\\\t=3.29\ s\)

Hence, it will take 3.29 seconds to hit the ground.

Answer:

Rest and motion are relative terms. In simple terms, an object that changes its position is said to be in motion while the opposite action causes an object to be at rest.

Explanation:

A electric motor is a device that uses electricity and magnetisim to create motion

(1) The force of gravity between the Earth and the satellite is 8.91 * 10^6 N.

(2)  The orbital period of the satellite is 6,132 seconds i.e. 1 hour and 42 minutes.

(3) The tangential velocity required to keep the satellite in orbit is approximately 7.94 km/s.

(4) The angular velocity of the satellite is 0.0011 radians per second.

(1)  The force of gravity between two objects can be calculated using Newton's law of universal gravitation. The formula is F = (G * m1 * m2) / \(r^2\), where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between their centers. In this case, the mass of the Earth is much larger than the mass of the satellite, so we can consider the satellite's mass negligible compared to the Earth's mass. Plugging in the values, we get\(F = (6.67 \times 10^{-11} N m^2/kg^2) \times (5.97 \times 10^{24} kg) \times (900 kg) / (6,371,000 m)^2 = 8.91 \times 10^6 \ Newtons\)

(2) The orbital period of a satellite can be determined using Kepler's third law of planetary motion, which states that the square of the orbital period is proportional to the cube of the semi-major axis of the orbit. Since the satellite is orbiting at a radius equal to one Earth radius above the surface, the semi-major axis is the sum of the Earth's radius and the altitude of the satellite. Using the formula \(T = 2\pi \times\sqrt{(a^3 / (G \times M)}\), where T is the orbital period, a is the semi-major axis, G is the gravitational constant, and M is the mass of the Earth, we can calculate the value. Plugging in the values, we get \(T = 2\pi \times\sqrt{6,371,000}\) meters +\((6,371,000 \ m)^3 / (6.67 \times 10^{-11} N m^2/kg^2 \times 5.97 \times 10^{24} kg)\) = 6,132 seconds.

(3) The tangential velocity required to keep a satellite in orbit can be determined using the formula \(v = \sqrt{G \times M / r\) where v is the tangential velocity, G is the gravitational constant, M is the mass of the Earth, and r is the distance between the center of the Earth and the satellite. Plugging in the values, we get v = √((6.67 x 10^-11 N m^2/kg^2 * 5.97 x 10^24 kg) / \(v = \sqrt{\frac{(6.67 \times 10^{-11} N m^2/kg^2 \times 5.97 \times 10^{24} kg) }{(6,371,000 m + 6,371,000 m)}\)) = 7,906 m/sec.

(4) The angular velocity of a satellite in orbit can be calculated using the formula ω = v / r, where ω is the angular velocity, v is the tangential velocity, and r is the distance between the center of the Earth and the satellite. Plugging in the values, we get ω = 7,906 meters per second / (6,371,000 meters + 6,371,000 meters) = 0.0011 radians per second.

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because mechanical advantage decreases due to the friction and weight of moving parts of the machine whereas the velocity ratio remains constant

hope it helps you

The answers are A. The period of the wave is 4 × 10⁻⁴ s, B. The frequency is 2500 Hz and C. The wavelength is 6 cm.

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The nebular hypothesis describes that when a cloud collapses into a star system a new star is forming inside this glowing cloud of gas.

The nebular theory proposes that a rotating cloud of material called a nebula, composed primarily of light components, flattened into a protoplanetary disc and developed into a solar system made up of a star and circling planets.

The Sun originated independently from a collapsing cloud of gas and dust, and as the planets passed by it later, they were gravitationally pulled in.

Individual stars and their planets develop from the revolving clouds' flattening into protostellar discs.

Most of the angular momentum is transmitted into the residual accretion disc through an unidentified mechanism that is thought to be related to the powerful magnetic fields associated with a newborn star.

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The final speed after the collision of the blocks is 5u/4. The final speed is given in terms of initial velocity.

Given:

Mass of the first block, m

Mass of the second block, 3 m

The initial velocity of the first block, 2u

The initial velocity of the second block, u

The momentum can be determined from the product of mass and velocity.

From the conservation of momentum:
initial momentum = final momentum

2mu + 3mu = (3 m+m) v

The final speed is:
5mu = 4mv

v = 5u/4

Hence, the final speed after the collision of the blocks is 5u/4. The final speed is given in terms of the initial speed.

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#Complete question is:

shows two blocks sliding on a frictionless surface. eventually, the smaller block overtakes the larger one, collides with it, and sticks. suppose that m

What is the speed of the two blocks after the collision?

Material from the early solar system that was never transformed into a planet is now left over in space. After the planets formed, particles collided and created space debris.

Radiation pressure from the sun and the powerful solar wind both helped to expel the gas from the solar nebula. By the end of the Heavy Bombardment period, part of the residual debris had been removed from the nebula. The nebular hypothesis is the theory of planetary creation that is most widely accepted. According to this theory, the Solar System was created 4.6 billion years ago as a result of the gravitational collapse of a massive molecular cloud that stretched across several light-years.

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The correct answer is (b). A slab waveguide consists of three layers.

A slab waveguide is a type of optical waveguide that consists of three layers. These layers are typically referred to as the core, cladding, and substrate. The core layer is the central region where light propagates, and it has a higher refractive index compared to the cladding layer. The cladding layer surrounds the core and has a lower refractive index, helping to confine the light within the core. The substrate layer provides structural support for the waveguide.

The three-layer configuration of a slab waveguide allows for the guiding of light along a specific path within the core, preventing excessive light loss by total internal reflection at the core-cladding interface. The refractive index contrast between the core and cladding layers determines the guiding properties of the waveguide, such as the effective refractive index and the mode confinement.

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The braking force of the tram is 25 kN, with a negative sign indicating that it is in the opposite direction to the initial motion of the tram.

What is Force?

Force is a physical quantity that can change the state of motion or shape of an object. It is defined as any influence that causes an object to undergo a change in velocity or direction. Force can be measured in Newtons (N) and is represented by the symbol F. The magnitude of the force can be calculated as the product of mass and acceleration, or as the rate of change of momentum over time. Force is a vector quantity, meaning it has both magnitude and direction.

To calculate the force acting on the man, we can use Newton's second law, which states that force is equal to mass times acceleration: F = m * a. Plugging in the given values, we get:

F = 50 kg * 3 m/s² = 150 N

Therefore, the force acting on the man is 150 N.

To calculate the braking force of the tram, we can use the equation:

a = (v_f - v_i) / t

where a is the acceleration, v_f is the final velocity, v_i is the initial velocity, and t is the time interval.

We are given that the initial velocity is 72 km/h, which we need to convert to m/s:

v_i = 72 km/h * (1000 m/km) / (3600 s/h) = 20 m/s

We are also given that the final velocity is 0 km/h, or 0 m/s. Finally, we are given that the time interval is 20 seconds.

Plugging these values into the equation for acceleration, we get:

a = (0 m/s - 20 m/s) / 20 s = -1 m/s²

The negative sign indicates that the acceleration is in the opposite direction to the initial motion of the tram, which is the direction of the braking force.

To calculate the braking force, we can again use Newton's second law, F = m * a, where m is the mass of the tram. We are not given the mass of the tram, but we can use the formula for kinetic energy to relate the mass, velocity, and braking force:

K = (1/2) * m * v_i^2

where K is the kinetic energy of the tram. At the beginning of the braking process, all of the kinetic energy of the tram is being dissipated by the braking force, so we can equate the kinetic energy to the work done by the braking force:

K = F * d

where d is the distance over which the braking force acts.

We are not given the distance over which the braking force acts, but we can solve for it using the formula for average velocity:

v_avg = d / t

At the beginning of the braking process, the average velocity is equal to the initial velocity, so we can write:

v_i = d / t

Solving for d, we get:

d = v_i * t = 20 m/s * 20 s = 400 m

Now we can plug in the values for mass, velocity, distance, and acceleration to solve for the braking force:

K = (1/2) * m * v_i^2

F * d = (1/2) * m * v_i^2

F = (1/2) * m * v_i^2 / d

F = (1/2) * m * v_i^2 / (v_i * t)

F = (1/2) * m * v_i / t

F = (1/2) * m * (-1 m/s²)

F = -25 m * kg/s²

F = -25 kN

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Answer: A roller coaster does not have an engine to generate energy. The climb up the first hill is accomplished by a lift or cable that pulls the train up. This builds up a supply of potential energy that will be used to go down the hill as the train is pulled by gravity

Hope this helps! Good luck with future homework and exams!