# Yahoo Web Search

1. Sort by

1. ### ratio physics problem! please hellppp?

(v(j)/v(p)) * (d(p)/d(j)) Drag is proportional...velocity (v) and density (d) The jet (j) is faster so it's value...the numerator on that part. The prop (p) is lower so it's density...

2 Answers · Science & Mathematics · 07/07/2012

2. ### what are the sign a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z means in physics?

...acceleration due to gravity h height k constant l length m mass n number o p momentum q Q charge r radius s distance t time u initial velocity v final velocity w weight x unknown y unknown z

5 Answers · Science & Mathematics · 19/06/2009

3. ### A gas expands and does P-V work on the surroundings equal to 339 J. CHEM HELP!!!?

...to the system and w is work done on the system; w is the "p-v work", so like if we raise the temperature of a gas, the volume increases...

1 Answers · Science & Mathematics · 20/11/2013

4. ### If u = 4i - j + k and v = 2i + 3j - k ......?

you have to solve this : (u-pv).v=0; (4i - j + k -2pi-3pj+pk).(2i + 3j - k)=0; ((4-2p)i +(-1-3p)j+(1+p)k).(2i+3j-k)=0; => 8-4p-3-9p-1-p=0; 4-13p=0;p=4/13;

2 Answers · Science & Mathematics · 17/07/2010

5. ### HELP! A 0.10 kilogram model rocket's engine is designed to deliver an impulse of 6.0 newton seconds. If the...?

J = impulse P = m*v J = P F*t = m*v you could first figure out the velocity with the information that...

1 Answers · Science & Mathematics · 30/01/2010

wind: v_w = (110*cos45 i + 110*sin45 j) km/h = (78 i + 78 j) plane: v_p = -580km/h j Add these to get the plane's velocity relative to the ...

2 Answers · Science & Mathematics · 21/02/2015

7. ### An electromagnetic wave has an electric field strength of 145 V/m at a point P in space at time t. (a) What is?

...work: (a) Electric field strength (E) = 145 V/m Now formula for the energy density is.../N.m2)(145V/m)2 = 9.30*10-8 J/m3 (b) Formula for the charge stored on...

2 Answers · Science & Mathematics · 02/07/2010

8. ### Physics question about power and speed?

... .. P (Watts) = Work (J) / time (s) .. (not P = W/d) [although we are not ...force delivered (F) x velocity (V) .. V = P / F .. .. 35,...

1 Answers · Science & Mathematics · 01/03/2012

9. ### Work done in adiabatic compressions of gasses?

...V^y ) = C ( a positive constant ) ........ where y is gamma Hence, V = j * ( P^ ( -1/y ) ) where j is another positive constant. Hence, dV/dP...

1 Answers · Science & Mathematics · 06/12/2011