Question

In 35.0 s, a pump delivers 0.550 m^{3} of oil into
barrels on a platform 25.0 m above the pump intake pipe. The
density of the oil is 0.820 g/cm^{3}.

a. Calculate the work done by the pump.

b. Calculate the power produced by the pump.

Answer #1

a. Calculate the work done by the pump.

Mass lifted = (0.550 m^{3}) x (1.00 x 10^{6}
cm^{3}/m^{3})(0.820 g/cm^{3})

= 4.51 x 10^{5} g = 451 kg

The work done is

W = F_{g}d = mg (h) = (451 kg)(9.80
m/s^{2})(25.0 m)

= 1.10 x 10^{5} J = 1.10 x 10^{2} kJ

b. Calculate the power produced by the pump.

P = W / t = 1.10 x 10^{2} kJ / 35s = 3.14 kW

A pump delivers water (r= 1000 kg/m3, µ= 0.860x10-3 kg/m·s) from
one reservoir to another reservoir through 120 m of 0.05 m diameter
pipe. Volumetric flow rate in the pipe line is measured with
venturi meter. Throat diameter of venturi meter is 38 mm and
pressure drop in the venturi meter is 156.9 kPa.The surface of the
pipe is rough e/D=0.0001. Calculate the power of the pump required
for the water–transfer. See the figure below for several pipe–
fittings installed...

Oil, with ?=860 kg/m3 and µ=0.06 kg/m ?s, flows through a
horizontal pipe of 15 m length. The power delivered to the flow is
1 hp. If friction losses are to be neglected and the flow is at the
laminar transition point
(a) What is the appropriate pipe diameter?
(b) For this condition, what are Q in m3/h; and
(c) ?W in kPa?

Chocolate milk is being mixed using milk (? = 1050 kg/m3) at 10
m/s, chocolate syrup (? = 1200 kg/m3), and a sucrose solution (? =
1100 kg/m3) at 1 m/s through 3 separate pipes (all with i.d. = 4
cm) into a mixer. After mixing, the chocolate milk exits the mixer
via a fourth pipe (i.d. = 7 cm) at 8 m/s. Assuming that the fluids
are incompressible, calculate (a) the velocity of the chocolate
syrup required for the...

Question 1 A steam turbine drives an electric generator (so
the turbine delivers shaft work). The inlet steam flows through a
12.0 cm diameter pipe to the turbine at the rate of 2.50 kg/s at
600.0 °C and 10.0 bar absolute. The exit steam discharges through a
25.0 cm diameter pipe at 400.0 °C and 1.00 bar absolute. The
turbine is adiabatic, and the process is at steady state. Neglect
the potential energy effects.
̇
(a) Calculate ∆Ek term for...

ch 6
1:
It is generally a good idea to gain an understanding of the
"size" of units. Consider the objects and calculate the kinetic
energy of each one.
A ladybug weighing 37.3 mg
flies by your head at 3.83 km/h
.
×10
J
A 7.15 kg
bowling ball slides (not rolls) down an alley at 17.5 km/h
.
J
A car weighing 1260 kg
moves at a speed of 49.5 km/h.
5:
The graph shows the ?-directed force
??...

1) Describe an example of each of the following that may be
found of your kitchen: Explain how your choice falls into this
category, and if there is a chemical name or symbol for it, provide
that as well. Provide a photo of your example with your ID card in
it. a) a compound b) a heterogeneous mixture c) an element (symbol)
Moving to the Caves… Lechuguilla Caves specifically. Check out this
picture of crystals of gypsum left behind in...

7) Suppose your crystal's density is 2.312 g/cm3. Use conversion
factors to convert this to mg/μl Show all your work and all your
units throughout. Now to the doctor's office: 8) I have come to see
you, the doctor, because I was feeling a bit ill. The first thing
the nurse did was look at me and see I had a large growth in my
neck. “Wow!” she said. “How long has this been going on?” “For a
couple of...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 5 minutes ago

asked 25 minutes ago

asked 51 minutes ago

asked 51 minutes ago

asked 55 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago