emath

Most popular questions and responses by emath
  1. Physics

    A particle of mass m is shot with an initial velocity vector v i and makes an angle θ with the horizontal, as shown below. The particle moves in the gravitational field of the Earth. (makes a shape of a parabola)Find the angular momentum of the particle

    asked on March 4, 2010
  2. Intro Chemistry

    What is the name of NH4CNO? is it ammonium something? Thank you

    asked on March 8, 2010
  3. physics

    A tennis ball is a hollow sphere with a thin wall. It is set rolling without slipping at 4.24 m/s on a horizontal section of a track. It rolls around the inside of a vertical circular loop 90.0 cm in diameter and finally leaves the track at a point 19.0 cm

    asked on March 2, 2010
  4. Math

    integrate (sinx)^(5)(cosx)^(12)from 0 to (pi/2) I'm having problems just even integrating it... I tried breaking it up (sin^(2)x)^(2)(cos^(2)x)^(6)(sinx)dx then doing u-sub with u=cosx and du= -sinx but then I get stuck... the answer is 8/3315 just don't

    asked on February 23, 2010
  1. math

    3sqrt(45) simplifies to: 3sqrt(9 * 5) 3*sqrt(9)*sqrt(5) 3*3*sqrt(5) 9sqrt(5) which equals about 20.1246

    posted on March 7, 2010
  2. Physics

    and for part a I realized that it is 0 because the particle is at the origin and I have to find the angular momentum of the particle about the origin: a = vi x= r r = 0

    posted on March 4, 2010
  3. Physics

    My apologies The "following locations" a) at the origin b)at the highest point of its trajectory c)just before it hits the ground the dimensions of angular momentum: ? kg*m^(2)/s the picture is simply a parabola, a projectile launched with some angle theta

    posted on March 4, 2010
  4. MATH 4TH GRADE

    5% converts to 0.05 in decimals of means multiplication so... 0.05 x 600= 30

    posted on February 23, 2010