Constant force F1 acts on a box as the box slides rightward across
a frictionless floor. Force F1 is angled upward by 60° to the floor
and has magnitude 4.0 N. The speed v of the box at a certain
instant is 3.0 m/s. At that instant, what is the net power
Figure shows a force of magnitude F: 12.0 N applied to an 8.00
kg block at a downward angle of 0: 30.0. The coefficient of static
friction between block and floor is us: 0.700; the coefficient of
kinetic friction is pk: 0.400. What is the magnitude of the
A food shipper pushes a wood crate of cabbage heads (total mass
m= 14 kg) across a concrete floor with a constant horizontal force
F of magnitude 40 N. In a straight-line displacement of magnitude
d= 0.50 m, the speed of the crate decreases from v0: 0.60
A child of mass m is released from rest at the t0p of a water slide,
at height h= 8.5 m above the bottom of the slide. Assuming that
the slide is frictionless because of the water on it, find the child's
speed at the bottom of the slide.
a) 6.4 m/s
b) 9.1
Hot water {cmmraturcz It is set at 50°C initially for both ow congurations, This is
done by clicking the button "Control" next to "Hot Water Temp" (purple arrow in Fig,
10). The PID Controller for the hot water temperature appears (Fig, 14)_ Input (500C)
Force 13 = (3.0x2N)f +(2.0N)}' with x in meters acts on a partide,
to (3.0 m, 4.0 m)?
a)15J
b)23J
c)27J Force 17; = (3.0x2N)f +(2.0N)} with X in meters acts on a particle,
changing only the kinetic energy of the particle. How much work
is done on the part
Plate and Shell Type Heat Exchanger
Objective:
The objective of this experiment is to investigate the effects of various ow conditions, plot the
temperature distribution over the length, nd the log mean temperature difference and overall
heat transfer coe
Theory and Background:
The fundamental equation of heat transfer by convectic- is,
q = hA(T. - T.) (1)
where h is the convection heat transfer coefcient, A is the area of uid contact, T. is the surface
temperature and Ta. is the ambient temperature. Althm
in 1896 in Waco, Texas, William Crush parked two locomotives at
opposite ends of a 6.4 kmlong track, fired them up, tied their
throttles open, and then allowed them to crash head-on at full
speed in front of 30,000 spectators. Assuming each locomotive
wei
Heat exchanger data:
Total heat transmission area, A = 0,096 m1
Correction factor for LMTD, F = 0.95
Proeed u re :
1. Ensure that thehardware is congured as described here (ask TA or instructor if you have
any questions): * i k
(a) The hot water container