Saurav

On the horizontal plane there is a vertical tower is a vertical tower and the shadow of its is found to be 40 m longer.when sun's altitude is 30 degree than what it is 60 degree.find the height of tower.

Does methane dissolve in water?

Methane gas burns in air to give carbon dioxide and water. a) give a chemical equation b) How can the mixture of these gases be separated b) Which gases does it mean?? Can anyone tell me.. Pleease.

@Bobpursley sir.. so it means that we need to separate carbon dioxide and steam.. right?

Perimeter Of square = circumference of circle Then, Circumference of circle = 2¢ r 40 = 2 * 22/7 * r 140 = 22 * r r = 140/22 r = 70/11 D = 140/11

There is only possibility of six addition without repeating digits i.e. 48+84=132 57+75=132 58+85=143 67+76=143 68+86=154 and 78+87=165 Some of them have same answer.In 1st and 2nd case the answer is 5.In 3rd and fourth case answer is 7 then fifth and six...

Since BC|| DE and BE || CD with BC bisects CD, BCDE is a rectangle. : opp sides are equal i.e, BE = CD : x + y = 5 ......(1) DE = BC : x - y .......(2) Since perimeter of ABCDE is 21 : AB + BC + CD + DE + EA = 21 3 + x - y + x + y + x - y + 3 = 21 6 + 3x...