Sunday

November 29, 2015
Total # Posts: 29

**Physics**

The typical lifetime of a star like our Sun is 10 billion years. While a star like our Sun is able to generate energy in its core (through fusion) the thermal pressure balances the gravitational pressure from the Sun’s mass. However, once the star rules our of hydrogen, ...
*November 23, 2015*

**Physics**

A round object with mass m and radius R rolls down a ramp that makes an angle θ with respect to the horizontal. You can assume there is static friction so that the object rolls without slipping. a) For now, take the moment of inertia of the object to be I (you do not know...
*November 23, 2015*

**jdt trignometric**

tan¦È=7/24 then prove that ¡Ì(1-cos¦È/1+cos¦È)=1/7 WHERE 0<¦È<90¡ã
*June 21, 2015*

**physics (motion)**

the initial velocity of a particle is u (at t=0) and acceleration f is given by at.which relation is valid: (a)v=u+at^2 (b)v=u +at^2/2 (c)v=u+at (d)v=u
*June 23, 2014*

**MATHS**

i think its my brother messing aroud please dont do that ho is always doing does things
*June 17, 2013*

**MATHS**

ms.sue please do something this boy is creepy
*June 17, 2013*

**MATHS**

ms.sue i have no idea who is that anyway thanks
*June 17, 2013*

**maths**

A=D1*D2 LIKE D=24 AND 18. SO 24*18=432. THEREFORE AREA=432 . AND SIDE= SQRT D1*2+D2*2 . SO GIVEN D1 AND D2 =24 AND 18 =SQRT 24^2 +18^2= 576+324 =900 THEREFORE SIDE= sqrt900=30.
*May 21, 2012*

**Physic**

What is comet how it fall
*February 25, 2012*

**Science**

What is comet how it fall and why he look blue
*February 25, 2012*

**Physics**

What is energy
*February 24, 2012*

**physics**

what is the angular speed of one satellite as seen by an astronaut in another satellite?
*February 21, 2012*

**Physics**

Wgat is energy
*February 19, 2012*

**physics**

The earth's atmosphere extends to a height of nearby 200KM above its surface there many be explosion and noises taking place in the outer space but we do not hear them.why?
*January 3, 2012*

**physics**

What is force defin it
*January 2, 2012*

**physics**

The capacity do to work
*January 1, 2012*

**maths**

3-0 9-0 11-5
*October 21, 2011*

**math**

what is the perimeter value of r=a(1+cos theta)
*March 28, 2011*

**math**

44 degree
*March 28, 2011*

**Math**

b. 525 is the population of the frogs after 5 years
*March 27, 2011*

**geography**

geography envoirment
*March 4, 2011*

**chemistry**

The label of a spread says that it contains, per 100 g product: 80 g fat; 20 g saturated fat. What is the percentage of saturated fatty acids expected in the fat extracted from this spread? 25% 80% none of these 20% 16%
*February 24, 2011*

**chemistry**

To make 10 mL of 25 mM sodium standard, what volume of 1 M NaCl stock should be used? 250 mL 2.5 mL 0.25 mL 0.5 mL None of these 400 mL
*February 24, 2011*

**chemistry**

To make 10 mL of 25 mM sodium standard, what volume of 1 M NaCl stock should be used? 250 mL 2.5 mL 0.25 mL 0.5 mL None of these 400 mL
*February 24, 2011*

**physics**

Assume g= 10 m/sec2 60*x1 + 35*x2 = 1.3*10=13 on observation we get x1= 0.1 m x2= 0.2 m so tan(angle)= .1/.8= .125 angle= 7.125 degree
*December 1, 2010*

**Physics**

A car reaches a speed of 40m/s from rest in a time of 8 seconds. After teh 8 seconds, the car travels at a constant velocity fro 200meters when it runs out of gas. The car slowly comes to rest 30 seconds after running out of gas. Calculate acceleration for the first 8 seconds
*October 25, 2010*

**math**

we have problem it'sa regular quadilateral example given by u is not correct
*October 18, 2009*

**physics**

300 cos 35.2 - Fk = ma fk = 300 cos 35.2 - ma Fn = mg + 400 sintheta = 300 + 400 sin 35.2 Fk = Fn*uk uk = 0.57 300 cos 35.2 - ma = 0.57 [ 300 + 400sin 35.2] -ma = (0.57)[300+400sin35.2]- [300 cos 35.2] a = all that crap on the right side/ (300N/0.9) a = 0.8 m/s2 Sx = VoT+ 1/2 ...
*October 14, 2007*

**james knox polk**

how did he become famous? http://www.whitehouse.gov/history/presidents/jp11.html
*January 21, 2007*

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