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What is meant by a positive work, negative work and zero work? Illustrate your answer with

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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A spherical black body of radius 12cm radiates 450w power at 500k. If the radius were halved and the temperature doubled, what would be the power

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Animals curl into a ball, when they feel very

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Express the constant k of Eq. (8.38) in days and kilometres. Given k = `10^(–13)` `s^2` `m^(–3)`. The moon is at a distance of `3.84 × 10^5` km from the earth. Obtain its time-period of revolution in

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Why does a swimmer push the water

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

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Write the max value of y = sin x y = cos x y = 2sin x y = 2sin 2x

asked Mar 17, 2022 in 11th Physics by anonymous

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What are the properties of SHM?

asked Mar 17, 2022 in 11th Physics by anonymous

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Show that simple harmonic motion is the projection of uniform circular motion.

asked Mar 17, 2022 in 11th Physics by varun (6.7k points)

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Draw graphs of y = sin x y = cos x y = 2sin x y = 2sin 2x

asked Mar 17, 2022 in 11th Physics by anonymous

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Every oscillatory motion is SHM?

asked Mar 17, 2022 in 11th Physics by anonymous

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Write position equation of SHM for particle moving on x axis.

asked Mar 17, 2022 in 11th Physics by anonymous

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What is periodic motion?

asked Mar 17, 2022 in 11th Physics by anonymous

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What is force law of SHM?

asked Mar 17, 2022 in 11th Physics by anonymous

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Every oscillatory motion is periodic

asked Mar 17, 2022 in 11th Physics by anonymous

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What is oscillatory motion? Give one example.

asked Mar 17, 2022 in 11th Physics by anonymous

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Look at the given map of a city. Answer the following.-(a) Colour the map as follows: Blue-water, red-fire station, orange-library, yellow - schools, Green - park, Pink - College, Purple - Hospital, Brown - Cemetery.-(b) Mark a green ‘X’ at the intersection of Road ‘C’ and Nehru Road, Green ‘Y’ at the intersection of Gandhi Road and Road A.-(c) In red, draw a short street route from Library to the bus depot.-(d) Which is further east, the city park or the market?-(e) Which is further south, the primary school or the Sr. Secondary

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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The multiplicative inverse of `-1 1/7`

asked Jan 18, 2022 in 8th-maths by sumit (1.6k points)

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The table given below shows the distances, in kilometres, between four villages of a state. To find the distance between two villages, locate the square where the row for one village and the column for the other village intersect. If you drove from Himgaon to Sonapur and then from

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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A mother and her two daughters got a room constructed for Rs. 62,000. The elder daughter contributes `3/8` of her mother’s contribution while the younger daughter contributes `1/2` of her mother’s share. How much do the three contribute

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Calculate the amount and compound interest on Rs 8,000 for 1 year at 9% per annum compounded half yearly.(You could use the year by year calculation using SI formula to

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

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