A coal-fired power plant uses 400 ◦C steam to turn a turbine. Afterwards, the steam is condensed at a temperature of 25 ◦C. If the plant burns 1 million kg of coal in one hour, running at maximum efficiency, what is the amount of work that could be done by the turbine in that hour? (Coal contains 27 kJ of energy per g).

1. A particle starts from rest, increasing its speed evenly, traveling a distance of 10.0 (m) in a time of 1.40 (s). From that moment it is kept at constant speed for 1.00 (s). Then its speed decreases to rest in a time of 2.80 (s). Calculate the total displacement of the particle.

STEP BY STEP PLEASE

Consider the asymmetric 1/2 harmonic oscillator. use the Variational Principle to estimate the ground state energy of this potential. Use as your trial function Axe^bx^2

What would the electric force of the Moon on the Earth be if the Moon had 10^52 electrons attracting an equal number of protons in the Earth? The Earth-Moon distance is 400,000km. Given the value you got (compare to gravity between the Earth & Moon), why do we ignore electrical forces at astronomical distances?

-What is the principle in this problem?

-Step by Step solution. Pictures help.

Instructions: Provide full solutions to the following problems:
A propeller consists of two blades, each 3.00 m in length and with a mass of 120 kg. The propeller can be modeled as a single rod rotating about its center of mass. The propeller starts from rest and rotates up to 1200 rpm in 30. s at a constant rate.
A)Find the angular momentum of the propeller at t = 10 s and t = 20 s.
B)Find the torque on the propeller.

The wavelengths in the hydrogen spectrum with m = 1 form a series of spectral lines called the Lyman series. Part A Calculate the wavelength of the first member of the Lyman series. Express your answer to three significant figures and include the appropriate units. λ1λ 1 = nothing nothing Request Answer Part B Calculate the wavelength of the second member of the Lyman series. Express your answer to three significant figures and include the appropriate units. λ2λ 2 = nothing nothing Request Answer Part C Calculate the wavelength of the third member of the Lyman series. Express your answer to three significant figures and include the appropriate units. λ3λ 3 = nothing nothing Request Answer Part D Calculate the wavelength of the fourth member of the Lyman series. Express your answer to three significant figures and include the appropriate units.

Please give me 2 examples of angular analoge of newton's 3rd law of motion on cricket and 2 examples of angular analoge of the 2nd law of motion on cricket sport and examples of co efficient of restitution, conservation of momentum and transfer of angular momentum on cricket please answer in the form of screenshots or videos

blue light lenses

You can write about a blue light lens

The only criteria is that the write up must touch on 3 areas:

1. What is the problem this product (or technique) can solve
2. What are its limitations
3. What are its competing products

This is basically an essay about an optical product that you either are familiar with, or research. No calculations, no maths, and no more than 2 pages.

At the center of a 50-mm-diameter circular ice rink, a 76 kg skater traveling north at 2.7 m/s collides with and holds onto a 61 kg skater who had been heading west at 3.8 m/s .

How long will it take them to glide to the edge of the rink?

Express your answer using two significant figures.

Where will they reach it? Give your answer as an angle north of west.

A radioactive sample has a certain number N of unstable nuclei that are emitting 4.5 MeV gamma rays with a half-life of 1.5 hours. If the rate of radioactive heating of the sample due to these decays is 13 watts, how many unstable nuclei are initially in the sample?

AND

A muon at rest decays into an electron, an anti-electron neutrino, and a muon neutrino. After the decay, the electron has a total energy of 52.85 MeV and the anti-electron neutrino has an energy of 20 MeV. What is the energy of the muon neutrino (in MeV, closest answer)?

AND

*Suppose that a particle of mass m is confined to a region of width a. Its energy in the ground state must be of order (the particle is non-relativistic)–

(1) \bar{h} ^2/(ma^2 ). (2) 2 eV. (3) \bar{h} /a. (4) \bar{h} ^2 *am. (5) \bar{h} ^2/(ma).

*(don't truly comprehend this last one specially-thanks.)

A solenoid wound with 2020 turns/m is supplied with current that varies in time according to I = (4 A)sin(120πt), where t is in s. A small coaxial circular coil of 40 turns and radius r = 4.1 cm is located inside the solenoid near its center. (a) Derive an expression that describes the manner in which the emf in the small coil varies in time. (Use the following as necessary: t.) (b) At what average rate is energy transformed into internal energy in the small coil if the windings have a total resistance of 8.00 Ω?

1. What is the moment of inertia of a solid iron sphere 20 inches in diameter about an axis passing through the sphere half way from its center to the surface (you will have to look up its density)? If the sphere rolls down an incline plane that makes an angle 20 degrees with the horizontal, what will be its acceleration?

b. Derive the formula for acceleration of a circular disk that rolls down an inclined plane that makes an angle θ with the horizontal. (draw a diagram and say in words what you are doing)

20 kg of steam at 100⁰C is  passed into a mixture of 30 kg of ice and 100 kg of

water at 0⁰C . Find the resulting temperature if the water equivalent of the

vessel is 10 kg.

Show that  Brewster angle does not exist for TE  polarized light.

. WHERE is TE transverse electric

• Two singly ionized atoms move into a magnetic fields of magnitude 0.100 T pointing into the page. Each has a speed of 1.00 X 106 m/s. The nucleus of the first atom contains one proton and has a mass of 1.67 X 10-27 kg, while the nucleus of the second atom contains a proton and a neutron and has a mass of 3.34 X 10-27 kg. Atoms with the same number of protons in the nucleus but different masses are called isotopes. The two isotopes here are hydrogen and deuterium. Find their distance of separation when they strike a photographic plate.