Category: Mathematics

Question 1 Main-sequence lifetime (3 points)Calculate the main-sequence lifetimes of stars with:a) 7 times the mass of the Sunb) 0.6 times the mass of the SunExpress your answers as multiples of the Suns main-sequence lifetime, as well as in units of years.Question 2 Stellar classification (7 points)Explain the following stellar classes from the point of […]

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What are the uses of mathematics in our life

March 25, 2026

Mathematics plays an important role in our life but I have no idea about this what are the use in our life of mathematics

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MP government is completely facing issue in search of mines

March 25, 2026

The India is very big country in this world . Madhya Pradesh is a state of india . Madhya Pradesh government are not success to found mines like petrol , diesel , iron , etc.

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What is number

March 25, 2026

What is integer

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The sum of two numbers is ten and their product is 24 find t…

March 23, 2026

Let the numbers be x and y x+y=10…(1) x=10-y…(2) xy=24….(3) Put eqn (2) in eqn (3) (10-y)y=24 10y-y^2=24 y^2-10y-24=0 The coefficient of y multiply by twenty four y^2-6y-4y+24=0 y(y-6)-4(y-6)=0 (y-4) (y-6) y=4 or6

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Thermodynamic Question

March 23, 2026

Problem 1: A man (the system) walks inside an isolated room for 5 hours and does W=1250JW = 1250 , text{J}W=1250J of work. The internal energy decreases by U=2250JDelta U = -2250 , text{J}U=2250J. Determine the heat QQQ (with sign). Follow-up: If the system instead gains 3000J3000 , text{J}3000J of heat while performing the same […]

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Mathematics Question

March 22, 2026

Mathematics Definition: The study of numbers, shapes, patterns, and logical reasoning. Purpose: Provides tools to solve problems and explain real-world phenomena. Main Areas: Arithmetic basic operations (addition, subtraction, multiplication, division). Algebra using symbols and equations to represent relationships. Geometry shapes, angles, space, and measurement. Statistics & Probability analyzing data and predicting outcomes. Calculus studying change, […]

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A train travels 60 km in 1 hour, how far in 3 hours?

March 22, 2026

A train travels 60 km in 1 hour, how far in 3 hours?

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SKQ-101 Online Sections Graded Homework 9

March 22, 2026

Directions: Draw a circle around your answer(s) for each question and show all of your work. Graded Question #1: A survey finds the following number of minutes five students spend studying for a math test: 50, 45, 60, 10, 50. Find the mean, median, and mode for the data set. Graded Question #2: For the […]

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SKQ-101 Online Sections Graded Homework 9

March 22, 2026