Sign In
Ask Question
Kiley Jensen
Engineering
6 years ago
Fluid originally flows through a tube at a rate of 100 cm^3/s. To illustrate the sensitivity of the Poiseuille flow rate to various factors, calculate the new flow rate for the following changes with all other factors remaining the same as in the original conditions:
a. Another tube is used with a radius 0.100 times the original.
b. Pressure difference increases by a factor of 1.60.
c. A new fluid with 3.00 times greater viscosity is substituted.
d. The tube is replaced by one having 4.00 times the length.
Answer
Answers (1)
Emerson Shelton
Engineering
6 years ago
Crawling in heavy smoke or extreme heat can increase
Answer
Answers (1)
Guest
Engineering
6 years ago
4.13 Compare thermoplastic and thermosetting polymers (a) on the basis of mechanical characteristics upon heating and (b) according to possible molecular structures.
Answer
Answers (1)
Bartlett
Engineering
6 years ago
The Phoenix with a mass of 390 kg was a spacecraft used for exploration of Mars. Determine the weight of the Phoenix, in N, (a) on the surface of Mars where the acceleration of gravity is 3.73 m/s2 and (b) on Earth where the acceleration of gravity is 9.81 m/s2.
Answer
Answers (1)
Honey Pie
Engineering
6 years ago
If you put a straw into a glass of water, the straw looks bent, although nothing has really happened to the straw. The term that describes this property of light is
Answer
Answers (2)
Christina
Engineering
6 years ago
What can you do to protect your hands from any hazards on your worksite? Select the 2 answer options that apply. Use your gloves correctly Avoid jobs that could hurt your hands Always wear gloves Inspect your gloves for any damage before wearing
Answer
Answers (1)
Zane Mccormick
Engineering
6 years ago
How many steps is a player allowed to take after catching a ball while running
a. 5 b. 2 c. 10 d. 1
Answer
Answers (1)
Marin Castro
Engineering
6 years ago
While it seems rather than obvious that engineers need to consider the end user, how might this perspective get lost in the design process?
critical thinking question
Answer
Answers (1)
Cash Drake
Engineering
6 years ago
If a motor driven by PWM using half-bridge operation has a speed of 1,426 rpm at a duty cycle of 100% (full forward), what will its speed be at a duty cycle of 47%
Answer
Answers (1)
Nevaeh Zuniga
Engineering
6 years ago
An 1,840 W toaster, a 1,420 W electric frying pan, and a 70 W lamp are plugged into the same outlet in a 15 A, 120 V circuit. (The three devices are in parallel when plugged into the same socket).
A) What current is drawn by each device?
B) Will this combination blow the 15-A fuse?
Answer
Answers (1)
Ducky
Engineering
6 years ago
A permanent magnet DC motor has an armature resistance of 0.5 Ω and when a voltage of 120 V is applied to the motor it reaches a steady-state speed of rotation of 20rev/s and draws 40A. What will be:
(a) the power input to the motor?
(b) the power loss in the armature?
(c) the torque generated at that speed?
Answer
Answers (1)
Coralie
Engineering
6 years ago
A cylindrical hot water storage tank (see sketch) for a set of collectors is located in the basement of a dwelling. The tank is made of 0.080" thick steel and insulated with 3" thick fiberglass batt insulation. If the basement air temperature is 65ºF and the liquid in storage tank is at 120ºF, what are the heat losses through the vertical cylindrical surface of the tank? Assume inner surface of tank is at 120ºF. Ignore any radiation heat losses
Answer
Answers (1)
Everett Roth
Engineering
6 years ago
If an object moves 2 meters to the left in 1 second, what is the velocity of the object?
Answer
Answers (1)
Jaden Barnett
Engineering
6 years ago
An alloy to be used for a spring application must have a modulus resilience of at least 0.72 * 106 J/m3 (0.72 * 106 Pa). What must be its minimum yield strength (in MPa) ? Assume that the modulus of elasticity for this alloy is 101 GPa.
Answer
Answers (1)
Annie Schaefer
Engineering
6 years ago
At steady state, a refrigerator whose coefficient of performance is 3 removes energy by heat transfer from a freezer compartment at 0 degrees C at the rate of 6000 kJ/hr and discharges energy by heat transfer to the surroundings, which are at 20 degrees C. a) Determine the power input to the refrigerator and compare with the power input required by a reversible refrigeration cycle operating between reservoirs at these two temperatures. b) If electricity costs 8 cents per kW-hr, determine the actual and minimum theoretical operating costs, each in $/day
Answer
Answers (1)
More
1
...
121
122
123
124
125
...
Home
»
Engineering
» Page 123
Sign In
Ask Question
Menu
Calculator
Subjects
History
English
Mathematics
Biology
Physics
Chemistry
Geography
Social Studies
Business
Law
Arts
SAT
Advanced Placement (AP)
Computers & Technology
Engineering
Sign In
close
Sign In
Sign Up
Forgot Password?