Physics, 21.09.2019 05:20 sergun252005
Consider two vectors a and b. (12 pts: 3+3+3+3) (a) define the dot product mathematically in two different ways. (hint: one involving components, one involving lengths/angle.) (b) give a brief physical interpretation of what the dot product means. (give a concrete example if you like.) (c) define the vector cross product mathematically in two different ways. (hint: one involving components, one involving lengths/angle.) (d) give a brief physical interpretation of what the cross product means. (give a concrete example if you like.) extra credit (6 pts) find the angle between the "face diagonal" and "body diagonal" of a cube
Answers: 1
Physics, 22.06.2019 00:40
The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
Answers: 1
Physics, 22.06.2019 07:40
An object's buoyant force and weight mean the same thing.a. trueb. false
Answers: 2
Physics, 22.06.2019 19:20
On a hot saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22degreesc. at noon the air conditioner is turned off, and the people go home. the temperature outside is a constant 33degreesc for the rest of the afternoon. if the time constant for the building is 4 hr, what will be the temperature inside the building at 4 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? at 6 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? when will the temperature inside the building reach 24degreesc? 324281
Answers: 3
Consider two vectors a and b. (12 pts: 3+3+3+3) (a) define the dot product mathematically in two di...
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