As part of your job at the patent office, you are asked to evaluate the six designs shown in the figure for innovative new heat engines. (Figure 1)
Part A
Which of the designs violate(s) the first law of thermodynamics?

Answer:

it begins to move to the right! :)

Answer: Therefore, the instantaneous speed is only the answer, because, the detector can only detect the instantaneous speed but not the average speed.

Explanation:

Answer:

v_f = 30 m/s

Explanation:

v_f = v_I + a*t

v_f = 0m/s + (9.81m/s²)*(3s)

v_f = 29.43m/s

v_f = 30 m/s

Since the object is being launched horizontally off the cliff the only vertical force acting on the ball is gravity which is an acceleration of 9.81m/s². So we have all the flowing information to use the the kinematic equation: v_f = v_I + a*t.

The radial solutions for the one-electron atom for any integer n have the form: F(p) R(r) = en with p = n - l - 1/2, where l is the angular momentum quantum number and e is the base of the natural logarithm.

The polynomial F(p) is given by:

P F(p) = A=1+1 Ckpk with Ck+1 = 27/21 Ck, C1+1 = 1 and k(k+1).

The radial solutions for the one-electron atom are obtained by solving the Schrödinger equation for the hydrogen atom, which is a central potential problem. The Schrödinger equation separates into three parts: the radial equation, the angular equation, and the time-dependent equation.

The radial equation is solved by using the method of Frobenius, which yields power series solutions for the radial wavefunction R(r).The power series solution for the radial wavefunction R(r) is given by:

R(r) = CrF(-2p, 2l+1, 2r),

where C is a constant, F is the hypergeometric function, p = n - l - 1/2, and l is the angular momentum quantum number.

The radial wavefunctions R(r) are important in determining the atomic properties of atoms, such as the ionization energy, the electron density, and the radial distribution function.

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When a diesel cycle and Otto cycle work at the same compression ratio, the ideal cycle with the lowest thermal efficiency is  Otto cycle because the area shown in the P-V  graph for the same ratio is more than diesel cycle.

In an engine cylinder the ratio of maximum and minimum volume of the combustion chamber and cylinder is termed as compression ratio.

Hence, When a diesel cycle and Otto cycle work at the same compression ratio, the ideal cycle with the lowest thermal efficiency is  Otto cycle because the area shown in the P-V  graph for the same ratio is more than diesel cycle.

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Answer:

+5m/s

Explanation:

When doing the math we figure out that e is going to be slowing down at -4m/s² for 5 seconds. In total he is slowing down -20m/s which we take from the total speed of +25m/s to get his current new speed.

Answer:

Active stretching.

Explanation:

Think about it.

The maximum speed she can tolerate at the low point of her swing is 10.78 m/s.

Given that,

Mass of the carpenter = 61.7 kg

Length of the rope = 11.5 m

Capable force = 1229 N

Centripetal force acting on the body, F = mv²/r = 61.7* v²/11.5 = 5.37 v²

Gravitational force acting on her is

F = mg = 61.7* 9.81 = 605.28 N

Equating the summation of centripetal force and gravitational force with total capable force,

5.37 v² + 605.28 = 1229

5.37 v² = 623.72

v² = 116.15

v = 10.78 m/s

Thus, the maximum speed she can tolerate at the low point of her swing is 10.78 m/s.

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The x and y component of the vector are -18.32 m and 3.23 m respectively.

The x and y component of the vector is calculated by applying the following formula.

Bx = B cosθ

By = B sinθ

where;

The vector is located in negative x direction but positive y direction.

The angle of the vector from x axis = 90⁰ - 80⁰ = 10⁰

Bx = B cosθ  =  -18.6 m x cos ( 10 ) = -18.32 m

By = B sinθ = 18.6 m x sin ( 10 ) = 3.23 m

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Answer:

one point

Explanation: trust me :)

Answer:

what are the options for me

Answer:

975 N

Explanation:

Force = acceleration • mass

Force = 15 m/s/s • 65kg

Force = 975 N

The authors of the simulation made scaling choices so that the tidal distortion effect from the moon on Earth could actually be seen and appreciated.

The simulation was designed to demonstrate the tidal distortion effect, which is the result of gravitational forces between theEarthh and the moon. The effect causes the tides to rise and fall in a predictable pattern. In order for this effect to be visible in the simulation, the authors needed to scale the earth and moon appropriately.

The scaling choices in the simulation were made with a specific purpose in mind, which was to illustrate the tidal distortion effect between the Earth and the moon. By scaling the objects in the simulation appropriately, the authors were able to achieve this goal and provide a clear visualization of this phenomenon.

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Answer:

8.49673 minutes ≈ 8.5 minutes

Explanation:

Acceleration, a is defined as the rate of change in velocity divided by the change in time to attain that velocity

\(\mathsf a = \dfrac{\Delta v}{\Delta t} \\\\\textsf {where } \mathsf {\Delta v = v-v_0} \textsf{ v being final velocity and v_0 initial velocity}\), v = final velocity and v₀ the initial velocity
and Δt is the time required to attain final velocity

Δt = number of seconds since launch = t since t₀ = 0

Therefore,
\(a = \dfrac{v-v_0}{t}\)

The space shuttle's initial velocity is 0 m/s and its final velocity must be 7800 m/s to escape earth's gravity

So v - v₀ = 7800 - 0 = 7800 m/s, t - t₀ = t = 0 = t seconds
a = 15.3 m/s²

We have the equation

a = 7800/t

a is given as 15.3 m/s² so
15.3 = 7800/t

t  = 7800/15.3 = 509.80392 seconds

To convert to minutes, divide by 60
509.80392/60 = 8.49673 minutes ≈ 8.5 minutes

Answer:

Calcium chloride is very effective, working at temperatures below most products, and is significantly more effective than sodium chloride because of its ability to extract moisture from its surroundings and to cause exothermic or heat generating reactions.

Explanation:

Hope this helps

The molarity of solution of NaCl is 2.28 M

The molarity of a solution is the amount in moles of a solute dissolved in a given volume of solvent in liters.

The moles of a substance = mass/ molar mass

Molar mass of NaCl = 58.5 g/mol

Moles of NaCl = 200/58.5

Moles of NaCl = 3.42 moles

Molarity of solution = 3.42/1.5

molarity of solution = 2.28 M

Therefore, the molarity of the solution of NaCl is 2.28 M.

In conclusion, molarity is the ratio of moles of solute and volume of solvent.

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Answer:

Have a blessed day!

Explanation:

The energy to launch the spacecraft came from moving the spacecraft against the magnetic force. The energy used to move a magnet against a magnetic force is stored as potential energy in the magnetic field. This magnetic force can convert potential energy stored in the magnetic field to kinetic energy.

Please give brainliest!

Answer:

Moving the spacecraft against the magnetic force provided the energy needed to launch it. The energy expended to move a magnet against a magnetic force is stored in the magnetic field as potential energy.

Explanation:

The net force on a vehicle that is accelerating at a rate of 1.8 m/s2 is 2100 N. The approximate mass of the vehicle in kg is 1166.67kg.

The word "force" has a clear definition. At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains." One thing experiences a force from another. There are both living things and non-living objects in the concept of a force.

The vector sum of the forces exerted on a particle or object is known as the net force. The original forces' impact on the motion of the particle is replaced by the net force, which is a single force.

Force ( F ) is 2100N

Acceleration ( a ) is 1.8m/s²

Mass(m)= ?

According to formula;

Force = mass × acceleration

F= m × a

2100 = m × 1.8

2100 / 1.8 = m

Therefore, m = 1166.6kg.

Thus, The net force on a vehicle that is accelerating at a rate of 1.8 m/s2 is 2100 N. The approximate mass of the vehicle in kg is  1166.67kg.

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35

Explanation:

95 =9/5*x +32

63=9/5x

9x=63*5

x=35

Answer:

35 m/s

Explanation:

Given that an automobile was moving at 15m/s and accelerated at 2m/s^2 for 10s. what is the final speed ?

The parameters given are :

initial velocity U = 15 m/s

Acceleration a = 2 m/s^2

Time taken = 10s

Using first equation of motion;

V = U + at

V = 15 + 2 * 10

V = 15 + 20

V = 35 m/s

Therefore, The final speed is 35 m/s

The final speed of automobile moving at the given initial speed and acceleration is 35m/s.

Given the data in the question;

Final velocity of the automobile; \(v = ?\)

To determine the final velocity of the automobile, we use the First Equation of Motion:

\(v = u + at\)

Where v is final velocity, u is initial velocity, a is acceleration and t is time taken.

We substitute our given values into the equation

\(v = 15m/s + [ 2m/s^2 * 10s ]\\\\v = 15m/s + 20m/s\\\\v = 35m/s\)

Therefore, the final speed of automobile moving at the given initial speed and acceleration is 35m/s.

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Answer: 144 km/h

Explanation:

The distance between Toronto and Waterloo is 288 km. The student traveled from Toronto to Waterloo at a speed of 96 km/h, so the total distance traveled is 288 km (96 * 3). The student traveled back from Waterloo to Toronto in 2 hours, so the average speed on the way back is 144 km/h (288 / 2).

However, we cannot know the exact speed on the way back without knowing the student's exact route. If the student took the same route on the way back, then the average speed is 144 km/h. However, if the student took a different route on the way back, then the average speed could be different. For example, if the student took a more direct route on the way back, then the average speed could be higher. If the student took a more scenic route on the way back, then the average speed could be lower.

Therefore, the best answer to the question is that the average speed on the way back is 144 km/h assuming the student took the same route back.

Answer:

V = ω A sin ω t       can be used to describe SHM

When sin ω t = 1 (the maximum value possible)

V = ω A          at equilibrium sin ω t = 1

Answer:

a) 1500 j

b) 3000 j

c) 34.64 m/s

Explanation:

at halfway point 1/2 of the potential energy has been converted to kinetic energy

so 1 /2 P E =  1500 j

   it will still have the OTHER half of its PE     1500 j

c) PE will be entirely converted to KE when it is at the bottom

       KE = 1/2 m v^2

       3000 = 1/2 (5)(v^2)     show   v = 34.64 m/s

The names of meteor showers (Geminids, Leonids, Perseids, Quadrantids) are names of meteor radiant points which are in the apparent direction of the luminous tails of individual meteors seen all over the sky.

The Quadrantids, for example, appear to radiate from the constellation Boötes.

The names of meteor showers (Geminids, Leonids, Perseids, Quadrantids) are names of radiant points which are in the apparent paths of the luminous tails of individual meteors seen all over the sky.

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the work done to raise a 25kg book to a 1.5 m shelf is 367.5J and the potential energy of the book will be 367.5

Work done by a force is equal to the scalar product of the force applied and displacement. If d displacement happens on applying a force F, then work done, W by the force is

W = F. d

given:

mass, m = 25 kg

height, d = 1.50 m

work has to be done against the weight of the book, F = mg

work done W = F. d

W = mgd

W = (25) ×(9.8)×(1.50)

W = 367.5 J

This work is stored as the potential energy of the book.

Therefore, the work done to raise a 25kg book to a 1.5 m shelf is 367.5J and the potential energy of the book will be 367.5J

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Answer:

Space exploration is the use of astronomers and space technology to explore outer space.Whilw exploration of space is carried out by astronomers with telescope,the physical exploration is conducted by unscrewed robotic space probes and human spaceflight.