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Design Process
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Terms in this set (9)
design process
the step-by-step process scientists use to solve problems or answer questions
variable
something that can change, or vary, in an experiment
investigation/experiment
a carefully controlled test of a possible solution
observation
the skill of watching somebody or something attentively
prediction
to guess what is going to happen based on prior experiences
materials
tools needed to complete an experiment
data
information you gather during an experiment
revise
to change something in order to correct or improve it
conclusion
a statement that a person thinks is true based on the results of an investigation
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ENGINEERING
How many bits per word are needed to represent the decimal integers 0 through 100? 0 through 1000? 0 through $10^6?$
ENGINEERING
Using a forked rod, a smooth cylinder P, having a mass of 0.4 kg, is forced to move along the vertical slotted path $r = (0.6\theta)$ m, where $\theta$ is in radians. If the cylinder has a constant speed of $v_c$= 2 m/s, determine the force of the rod and the normal force of the slot on the cylinder at the instant $\theta = \pi$rad. Assume the cylinder is in contact with only one edge of the rod and slot at any instant.
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How does a thermocouple work as a temperature measurement device?
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A 1:10 scale model of a tractor-trailer rig is tested in a wind tunnel. The model frontal area is Am = 0.1 m2. When tested at Vm =75m/s in standard air, the measured drag force is Fd = 350 N. Evaluate the drag coefficient for the model conditions given. Assuming that the drag coefficient is the same for model and prototype, calculate the drag force on a prototype rig at a highway speed of 90 km/hr. Determine the air speed at which a model should be tested to ensure dynamically similar results if the prototype speed is 90 km/hr. Is this air speed practical? Why or why not?
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