phisics

Anil

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Choose all the expressions that are correct for the following diagram. If none of them are correct, select "None of the above." A. E1−i1R1−i3R3−E3=0B. E1−i1R1+i2R2+E2=0C. −E3−i3R3+i2R2−E2=0D. E3−i3R3−i2R2−E2=0E. i1−i2−i3=0F. i1+i2+i3=0G. None of the above.

Challenges to Space Exploration a) We can round numbers to say light (and all electromagnetic radiation: radio waves, infrared, ultraviolet, etc.) travels at approximately 3x108 m/s. At its closest approach, Mars is about 0.5 au of the Earth. At this distance, how long would it take for an astronaut on Mars to communicate with Mission Control on Earth? Give your answer in minutes. Explain why Mars rovers have entire sequences for travel pre-programmed and uploaded all at once rather than being driven around in real time with a joystick. For the Earth-Moon distance in 5b, you can use 384,400 km b) The boosters that launched Apollo 11 allowed the astronauts to reach a speed of 25,000 miles per hour. At that speed, about how long did it take for the astronauts to reach the Moon? At that speed, how long would it take to reach Mars, assuming the closest approach distance given above? Give your answers in days.

How many minutes would it take to travel a distance of 7000 meters if you are traveling at a speech of 60 meters per second? Use the formula distance = speed x time.                 In lecture, we were given the formula V= λ/T. Sometimes we have to manipulate this formula to answer the question we are being asked.               4a. How do we manipulate the formula V= λ/T if we are given a problem where we need to find T?                             4b. How do we manipulate the formula V= λ/T if we are given a problem where we need to find λ?

1. Please help me answer A and B. Well explained please. A. Sets out the two postulates of Albert Einstein's theory of special relativity B. What is simultaneity? Use a concrete example in your explanation.

5:02 adapt.libretexts.org 1: Moving Through Space Time, Distance, or Velocity? + Value? Unit? | 5 (

Applications b My Question X C Solved The NX te How to Get C Course Homex b Answered The x M nbe (107) O 2m Can i opervellumecollege.com/course htmicourseld 164527698OpenvellumHMAC-lafe182c0aaedbaeboc11954e25143710001 Apps M Gmail O MEGA O Mastering Physics General Physics II - PHYS-2360 Sign Out H, ra Help Mastering Physics Course Home O My Courses Syllabus Constants Scores The kinetic energy of a particle is 46 MeV. eText - Part A Study Area he momentum is 130 MeV/e, what is the partic's mass? Express your answer using two significant figures. Decument Sharing User Settings AE Course Toels m MeV/e Ereriosn An RestAn Submit X Incorrect; Try Again; One attempt remaining Provide Feedback Next> 1135 PM 4202021

[Part 2] Instruction: Only answer question #5. Kindly provide the complete and correct solution. I will like your solution if it is correct and complete.  Please write your solution, do not type it here. Thank you!

Directions: Read and analyze the word problem. Solve the problem by identifying the given and formula needed. Write all the necessary given, substitution, conversion if there's any, formula used and computations. Highlight the final answer. 1. A 26 year old astronaut travels in a space craft in the outer space for 2 years in a 0.8c speed of light. A.) How much is the time dilation? B.) How old is the astronaut when he gets back on Earth?

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Attached is question.

QUESTION 2 A parsec is a unit of length equal to about 3.10X1013 km. How long will it take light, moving at 3.00X108 m/s to travel 1.00 pars (3.154X10 seconds = 1 yr) O a.I don't know, but I made the Kessel run in less than 12 parsecs b.3.27 yrs O c. 10.3 yrs O d.9.68 yrs O e.525600 min

Question B2 [This question will required roughly two single-sided A4 pages to answer.] A binary star system consists of two stars that revolve about their centre of mass in circular orbits. Suppose that the system is observed edge on. Because of Doppler shift the spectral lines from the two stars (known as a spectroscopic binary system) are observed to shift periodically about a mean to shorter and longer wavelengths as each star moves towards or away from the observer. a) Explain how the orbital period Porb and components of velocity along the line of sight 10,1 and v0.2, for each star, can be found from the observed spectral lines. b) Explain how the velocities of the two stars, v₁ and v2, and the angular velocity of the stars w can be determined. c) Denoting a₁ and a2 as the distances of the two stars from the centre of mass, respectively, find a relationship between the ratio of the masses of the two stars (M₁ and M2), ratio of distances from centre of mass, and ratio of…

Part 1. Stellar Mass Black Holes These are the collapsed cores of massive stars which end their life in supernova explosions. The stellar core can no longer use nuclear fusion to hold up the immense gravity, and collapses until its escape velocity rises higher than the speed of light. Voila! A black hole is formed. Part A: The Schwarzschild Radius The Schwarzschild Radius is defined as: 2GM (1) = c2 where r, is the Schwarzschild radius, G is the gravitational constant, M is the mass of the black hole, and c is the speed of light. 1. Let's say we have a black hole with a mass 10 times that of the Sun (the Sun's mass is 2 x 1030 kg, so the mass of the black hole is then 2 x 1031 kg). Using the definitions for G and c, what would the Schwarzschild radius of this black hole be? 2. If the radius of the Sun is 7 x 108 m, how does the black hole's radius compare? (Divide the radius of the Sun by the Schwarzschild radius). Your answer should be in the form of times smaller/bigger than the…

M5NZY4NZI0/t/all ed you to learn and apply the relevance of dimensional analysis, Arithmetie and geometric progressions and use of tial, logarithmic and hyperbolic ions of statistical techniques e.g. me ion and use of probability theory in Engineering context. Hence, you have to perform following tasks. Furthermore, you also have to investigate Open with Google Docs ata. Pearon's correlation co-efficient, Linear The magnitude of the gravitational force, F, between the two planets of masses mị and m2 with centres at distanc x apart is given by F = G™ where G is a constant. a. By using dimension analysis, find the dimensions of G. b. The life time, t, of a planet depends on the its mass, m, its initial radius, R, and the constant G and dimensionless constant, K, so that t = mªG®R°. where a, B, y are constants. Find the values of a, ß and y.

1. Use of the Einstein summation convention is a very efficient way to write a series of equations in a compact form. a) What are the two essential components of the convention, as applied with a 3 dimensional Cartesian frame of reference. Explain the Kroneker delta, ðj. b) Write the following 3 equations in compact form using the Einstein convention. XI= (a¡bı+a2bz+a3c3)yı + 5c1 X2= (a¡bı+a2bz+a3c3)y2 + 5c2 X3= (a¡bı+azbz+a;c:)y3 + 5c3 c) Expand the (Navier-Stokes for a constant density fluid) equation below into its component form for i = 1. du/ôt + uk ôu/ôxk = -(1/p)ôp/ôxi – gồi3 + (µ/p)ô²u;/(ôxmôxm)

Please answer in Bold.

Is it A B C or D

Can you show the algebra steps.. specifically how we got the "2". **Note question is already answered just need explanation.

1. Read and U What information are you given? Mass= m = 0.15 kg Speed of light = c = 300,000,000 m/s = 3 x 108 m/s 2. Plan and Solve What unknown are you trying to calculate? The amount of energy produced = E = ? What formula contains the given quantities and the unknown? E = mc2 Replace each variable with its known variable and known value. E = (0.15 kg)(3.00 x 108 m/s)2 E = 1.35 x 10¹6 kg.m²/s2 = 1.4 x 1016 J 3. Look Back and Check a separate In a nuclear reactor, 1.5 kilograms of plutonium-239 is completely converted to energy. How many joules of energy are produced? nits

Hi please answer the question fully and your best. I've also attached an image of constants if they are required. Thank you.

▼ Y Part A How much time does it take light to travel from the moon to the earth, a distance of 384000 km? Express your answer in seconds. VE ΑΣΦ t= Submit Part B Request Answer d= DANCE ? S Light from the star Procyon takes 11.4 years to reach the earth What is the distance to Procyon in kilometers? Express your answer in kilometers. 17 ΑΣΦ PO ? h km

Hello, I don't know how my lab group got the answers to h so can you please do the calculations for h to get those answers Here is the formula h = 1/2(9.8)t^2

The mass density of our universe is measured to be about 10-29 kg/m3. If an arbitrary point is chosen as the center, how large is the radius of a spherical surface centered at the point so that the mass enclosed in the surface will become a blackhole observed by someone outside the surface? A. 4.2 trillion light years B. 420 billion light years C. 42 billion light years D. 4.2 billion light years   Is the answer D? Thanks!

Problem 16.08 A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -65 μC.

Hi, please also explain how you got the answer and also explain why that is the right answer. This is the right answer please explain. (A)

hding Light Years 26.1 How far is it from Los Angeles to New York? Pretty far, but it can still be measured in miles or kilometers. How far is it from Earth to the Sun? It's about one hundred forty-nine million, six hundred thousand kilometers (149,600,000, or 1.496 x 10 km). Because this number is so large, and many other distances in space are even larger, scientists developed bigger units in order to measure them. An Astronomical Unit (AU) is 4:496x 108 km (the distance from Earth to the sun). This unit is usually used to measure distances within our solar system. To measure longer distances (like the distance between Earth and stars and other galaxies), the light year (ly) is used. A light year is the distance that light travels through space in one year, or 9.468 x 1012 km. 28.1 n the in tem. EXAMPLES 1. Converting light years (ly) to kilometers (km) Earth's closest star (Proxima Centauri) is about 4.22 light years away. How far is this in kilometers? Explanation/Answer: Multiply…

1. Please help me answer A and B. Well explained please. (Not written on a paper please) A. Sets out the two postulates of Albert Einstein's theory of special relativity. B. What is simultaneity? Use a concrete example in your explanation.

SCIENCE -40 Task 2 Solve the following problems. Show your solution! What is the wavelength of a radio wave of a frequency lo0 MHz? 2) What is the frequency of microwaves with a wavelength of 3 cm? 3) A radio station has a frequency ot 102 megahertz. What is the stations wavelength ? 4 An infrared beam has a wavelength ot tmm. What is its frequency?

QUESTION 18 Which of these expressions is used to obtain an eigenvalue of a dynamical variable or an observable ? ys* Ays dt Swaz fyr* w dz O Ays = ays Sy* O y*y dt = 1 ○ [w* Ây dt = f wà * y* de O ys* Ays

Hi, please also explain how you got the answer and also explain why that is the right answer. This is the right answer please explain. (B)

a. Describe three of the six possible scenarios for the fate of the universe. For each case, describe: • what conditions will be like • the curvature of the universe • which term (gravity, expansion, or dark energy) in the Friedman equation would dominate. b. Observationally, what scenario best describes our universe? Explain.