Sunday

December 21, 2014

December 21, 2014

Total # Posts: 24

**physics**

: stand with one arm and side of one foot pressed agaonst a wall.can you raose the other leg side ways? if not,why not
*December 7, 2014*

**physics**

If someone is standing on an edge of a table with a book in his hand.if he is going to fall from the este then What should he do to avoid falling from edge?
*December 2, 2014*

**physics**

A 40kg box of sweet cherries at 10 ° c cosisting of 30kg water and 10kg cherries is to be frozen at -30°c.Calculate the total amount of heat that needsto be removed from the cherries . The specific heat capacity of cherries is 3.43kj /kg°c. The specific ccapacity ...
*November 9, 2014*

**physics**

The latent heat of fusion for metal is 246kj per kg. How much heat would be used by melting 10 tonnes of metal?
*November 9, 2014*

**physics**

A coolant fluid has a latent heat of evaporation of 234 kj/kg . If the pump rate is 2250g per minute. How much thermal heat is removed each hour?
*November 9, 2014*

**science**

The inner planets are the planets in our Solar System that orbit closest to the sun – Mercury, Venus, Earth, and Mars.
*November 9, 2014*

**math**

Use a calculator or take out the decimal point and add it in the end. the answer is 665.98
*November 7, 2014*

**physics **

A coolant fluid has a latent heat of evaporation of 234 kj/kg . If the pump rate is 2250g per minute. How much thermal heat is removed each hour?
*November 7, 2014*

**Science**

The latent heat of fusion for metal is 246kj per kg. How much heat would be used by melting 10 tonnes of metal?
*November 7, 2014*

**MATH**

1. 9.4°c. 2. 2.5°c
*November 6, 2014*

**Chem Lab**

I need help with these problems as soon as posible Please
*October 8, 2012*

**Chem Lab**

Calculate the weight of the water lost by heating. Calculate the percentage of water in the hydrate. Calculate the number of moles of H2O lost by heating. Calculate the number of moles of anhydrous salt. Enter the formula of the hydrated salt. Calculate the theoretical ...
*October 8, 2012*

**Chem Lab**

I did a chem lab and have to figure out some stuff off of some data I found during the lab Weight of empty crucible and cover: 19.74 g Weight of crucible, cover and hydrated salt: 22.74 g Weight of crucible, cover and hydrated salt after 1st heating: 22.13 g Weight of crucible...
*October 8, 2012*

**Chem Lab**

Calculate the weight of the water lost by heating. These are the other post lab questions Calculate the percentage of water in the hydrate. Calculate the number of moles of H2O lost by heating. Calculate the number of moles of anhydrous salt. Enter the formula of the hydrated ...
*October 8, 2012*

**Chem Lab**

I did a chem lab and have to figure out some stuff off of some data I found during the lab Weight of empty crucible and cover: 19.74 g Weight of crucible, cover and hydrated salt: 22.74 g Weight of crucible, cover and hydrated salt after 1st heating: 22.13 g Weight of crucible...
*October 8, 2012*

**math**

he boys of a school can be arranged in 12,15 and 18 equal rows and also into a solid square. what is the least number of boys that the school can have?(Hint: find LCM)
*May 15, 2012*

**maths**

the boys of a school can be arranged in 12,15. and 18 equal rows and also into a a solid square.What is the least number of boys the school can have?
*May 15, 2012*

**chemistry**

Electron Affinity: is the energy released when an electron is added to a neutral atom.
*August 21, 2011*

**Math**

Prove the identity: cosx/1-tanx +sinx/1-cotx
*August 20, 2011*

**math**

1. Prove the identity:cosx/1-tanx+sinx/1-cotx=sinx+cosx 2.Prove the identity: cosx/1+sinx+1+sinx/cosx=2secx
*August 20, 2011*

**math**

Prove that (secx+tanx)^2=1+sinx/1-sinx Thanks in advance.
*August 20, 2011*

**physics**

;if a hoop A is made of iron & hoop B of wood are pushed at same time down to an inclined plane. find velocity of both if height of plane is 1m?
*January 23, 2011*

**arif**

when I tried to find solution of 1/(x-3) + 1/(x-9) = 1/(x-2) + 1/ (x-8) all terms of x are cancelled out why? Is there any rule to find solution of this?plz guide me.
*December 2, 2010*

**math array**

my grandaughter is doing array dot to dot sample make as manydifferent arrays as possible number 5 how would i go about doing a array with dots please, desperate in need to keep up with my grandaughters homework.
*August 17, 2009*

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