Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 27

**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

**MATHS**

i think its my brother messing aroud please dont do that ho is always doing does things

**MATHS**

ms.sue please do something this boy is creepy

**MATHS**

ms.sue i have no idea who is that anyway thanks

**Physic**

What is comet how it fall

**Science**

What is comet how it fall and why he look blue

**Physics**

What is energy

**physics**

what is the angular speed of one satellite as seen by an astronaut in another satellite?

**Physics**

Wgat is energy

**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?

**physics**

What is force defin it

**physics**

The capacity do to work

**physics**

The capacity do to work

**physics**

The capacity do to work

**maths**

3-0 9-0 11-5

**math**

what is the perimeter value of r=a(1+cos theta)

**math**

44 degree

**Math**

b. 525 is the population of the frogs after 5 years

**geography**

geography envoirment

**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%

**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

**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

**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

**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

**math**

we have problem it'sa regular quadilateral example given by u is not correct

**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 ...

**james knox polk**

how did he become famous? http://www.whitehouse.gov/history/presidents/jp11.html

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