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A stone is dropped by an astronaut from a height of 1.47 m above the surface of a planet. When stone reaches a point P at a height of 0.32 m it attain

Monjur Alahi

A stone is dropped by an astronaut from a height of 1.47 m above the surface of a planet. When stone reaches a point P at a height of 0.32 m it attains a speed of `4.1 m//s` Is the planet earth ?


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Salim Ahmed Kawsar

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Correct Answer - [No]

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The process that is performed by paramoecium to attain the lost energy 

(A) Conjugation

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David : By transfer of electrons atoms – can attain octet  Dravid : By sharing of electrons atoms – can attain octet 

C) Both David and Dravid are correct.

2 Answers 1 views
If a paper and a book are dropped from same height at a time, they will reach the ground at same time 

B) if there were no air resistance

2 Answers 1 views
Weight of a body on the surface of the earth is W. Then weight of the same body on the surface of a planet whose mass is double

 D) \(\cfrac{2\,W}9\)

2 Answers 1 views
If 1 kg body weights 1.2 N and 2 kg body weights 2.4 N on a planet. Then the acceleration due to gravity on that planet is 

Correct option is D) 1.2 m/s2 

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When a stone and a leaf were dropped from same height in your classroom, then the observation is 

B) Because of air resistance stone will reach the ground first.

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1. The heights of 15 boys of a shoot are given \( cm \) : \( 148,128,146,143,152,139,140,142,149,154,132,157,165,139,142 \) Arrange the above data in an ascending order and find: a. The height of the tallest boy. b. The height of the shortest boy. c. The mean height.

Please send me answer of the question

2 Answers 1 views
1. The heights of 15 boys of a shoot are given \( cm \) : \( 148,128,146,143,152,139,140,142,149,154,132,157,165,139,142 \) Arrange the above data in an ascending order and find: a. The height of the tallest boy. b. The height of the shortest boy. c. The mean height. 2 Answers 1 views
1. The heights of 15 boys of a shoot are given \( cm \) : \( 148,128,146,143,152,139,140,142,149,154,132,157,165,139,142 \) Arrange the above data in an ascending order and find: a. The height of the tallest boy. b. The height of the shortest boy. c. The mean height. 2 Answers 1 views
A projectile is thrown at angle `beta` with vertical.It reaches a maximum height `H`.The time taken to reach the hightest point of its path is

Correct Answer - B `t=sqrt((2H)/g)`

2 Answers 1 views

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