Homework Statement
Consider two masses of 3.3 kg and 7.4 kg
connected by a string passing over a pulley
having a moment of inertia 12 g · m2
about its axis of rotation, as in the figure below. The
string does not slip on the pulley, and the
system is released from rest. The radius of
the...
Homework Statement
The figure below shows a graph of potential
energy versus interatomic distance for a particular molecule. Rank the magnitude of the
force at locations A, B, and C. (That is, which
is the greatest, which is smallest, and are any
of these equal to each other?)...
Homework Statement
Humans have about v = 60 cm3
of blood per kilogram of body mass and blood makes a
complete circuit in t = 20 s seconds. For a
human body of thickness 0.2 m and height
1.8 m, estimate the change in power output of
the heart when the body is standing up on a
horizontal...
Homework Statement
A spring has a relaxed length of 5 cm and a
stiffness of 95 N/m. How much work must you
do to change its length from 2 cm to 10 cm?
k=95
Lnull=0.05
delta x = .1-.02 = 0.08
Homework Equations
F=-kx
W=Fdcostheta
The Attempt at a Solution
I honestly have...