Homework Statement
Given: latent heat of vaporization of water = 2.26 × 106 J/kg .
Nine gram of water changes from liquid to vapor at a pressure of one atmosphere. In the process, the volume changes from 0.5 cm3 to 2165 cm3.
Find the work done. Answer in units of J.
Find the increase in...
so here's my try: i made two triangles...one out of the force vectors and another out of the displacement vectors
i found the resultant displacement vector to be 5^2+1^2=26...so 5.1 m
i found the resultant force vector by doing 3^2+6^2=45...so 6.7 N
if i plug in these numbers into the work...
Homework Statement
PART A: A force ~F = Fx ˆı+Fy ˆ acts on a particle that
undergoes a displacement of ~s = sx ˆı + sy ˆ
where Fx = 6 N, Fy = −3 N, sx = 5 m, and
sy = 1 m.
Find the work done by the force on the
particle.
Answer in units of J.
PART B: Find the angle between ~F and...
wait i figured it out...you use v=(gm/r)^(1/2) and substitute in 2(pi)r/T (in seconds) for v...then solve for M
the answer i ended up with was 4.187530248*10^30
Homework Statement
A distant star has a single planet circling it in
a circular orbit of radius 3.33 × 1011 m. The
period of the planet’s motion about the star
is 836 days.
What is the mass of the star? The
value of the universal gravitational constant
is 6.67259 × 10−11 N · m2/kg2...