Acylindrical rod initially has length 3.0 meters and diameter 6.0 cm. due to thermal expansion, this bar expands by the same fractional amount in each direction. specifically, \frac{\delta r}{r}=δ r r = 0.006 . the cross sectional area a of a cylinder is given by: a=\pi\: r^2\: a = π r 2, where rr is the radius of the cylinder. what is the cross sectional area (in inches2 ) of this cylinder after the expansion has occurred ?
Answers: 3
Physics, 21.06.2019 19:20, Obeilskzexal
Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?
Answers: 1
Physics, 21.06.2019 22:10, chrisgramjooooo2366
The car hoist allows the car to be driven onto the platform, after which the rear wheels are raised. if the loading from both rear wheels is 1380 lb, determine the force in the hydraulic cylinder ab. neglect the weight of the platform itself. member bcd is a right-angle bell crank pinned to the ramp at c. the force is positive if in tension, negative if in compression.
Answers: 2
Physics, 21.06.2019 23:00, zahriamarie10
If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10
Answers: 1
Acylindrical rod initially has length 3.0 meters and diameter 6.0 cm. due to thermal expansion, this...
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