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Piyush365
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Yes, there is a clear difference in musical choice between children and elders due to varying life stages, cultural exposure and emotional preferences.

any difference in the choice of music between children and eldershalf yearly exam question paper - twin melodiesimportant questions from chapter 6 twin melodiessample question from class 9 english kaveri chapter 6
Kriti
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Fuel consumed is proportional to kinetic energy gained. The first day total mass is 160 kg, and the second day total mass is 200 kg. The required ratio of fuel used is 160 to 200, which simplifies to 4 is ...

chapter 7 workclass 9 science chapter 7 workenergy and simple machines question answerenergy and simple machines solutionsmass 60 kg rides a scooter of mass 100 kgmass of 40 kg joins him as a passenger
Kriti
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Write the sample space and calculate the probability based on the given information. (i) Two dice are rolled. What is the probability that the sum is a prime number greater than 5? (ii) A bag contains 4 red, 3 green, and 2 blue balls. Two balls are drawn without replacement. What is the probability that both are of different colours? (iii) Three coins are tossed. What is the probability that the first coin shows heads and exactly two heads occur in total? (iv) A four-digit number is formed using the digits 1, 2, 3, and 4 with no repetition. What is the probability that the number is even? (v) A student takes a multiple-choice test with 3 questions, each having 4 options (A, B, C, D), with only one correct answer. What is the probability that the student guesses and gets exactly 2 answers correct?

(i) Primes 7 and 11 give 8 pairs, P = 8/36 = 2/9. (ii) P(different) = 1 – P(same) = 1 – 13/36 = 23/36. (iii) Favourable outcomes {HHT, HTH}, P = 2/8 = 1/4. (iv) Last digit 2 or 4, P = ...

3 green and 2 blue ballsa bag contains 4 redganita manjari class 9 exercise 7.2 solutionsganita manjari class 9 exercise 7.3 solutionsganita manjari class 9 exercise 7.4 solutionsncert solutions – the mathematics of maybe: introduction to probabilityprobability that the sum is a prime number greater than 5
Ayushree
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The number of neutrons equals 197 minus 79, which is 118. In an electrically neutral atom, the number of electrons equals the number of protons, so there are 79 electrons.

atom has 79 protons and a mass number of 197cbse internal assessmenthalf yearly exam question paper - journey inside the atomimportant questions from chapter 8 journey inside the atomnumber of electronsnumber of neutrons
Ayushree
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Atomic number stays 12 since proton count is unchanged. Atomic mass increases slightly because the orbiting particles are heavier. Mass number remains 24 since nuclear nucleons are unchanged. Overall charge remains zero.

cbse class 9 science exploration chapter 8 solutionsncert class 9 science exploration chapter 8 question answerrevise – reflect – refine - solutions - journey inside the atomthere are 12 protons and 12 neutrons in the nucleuswhat effect will this replacement have on the atom's
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