Physics

Physics, 25.10.2019 08:43, lyn94

Wolrd-class skiers use, rather than fight, the force of gravity to carve the most efficient path down a slope

true or false

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Mathematics, 27.06.2019 00:20, masseyboy428

Determine if the following statements are true or false. (a) if ∫c vector f · d vector r = 0 for one closed path c, then vector f is path-independent. true false (b) if the total change of a function f along a curve c is zero, then c must be a contour of f. true false (c) line integralc vector f · d vector r = vector f(q) - vector f(p) when p and q are the endpoints of c. true false (d) if vector f is continuous and vector f = gradf, then vector f is path-independent. true false (e) if f(x) and g(y) are continuous one-variable functions, then the vector field vector f = f(x)vector i + g(y)vector j is path-independent. true false (f) the vector field vector f( vector r ) = vector r in 3-space is path-independent.

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Physics, 30.06.2019 01:30, bchamp2005p5upqx

Aspace station that does not rotate cannot simulate gravity for its occupants. a)true b)false from within a rotating reference frame, the centrifugal force simulates gravity. a)true b)false on a rotating station, a person at the center of the station, in the axis, will be weightless. a)true b)false if astronauts had a floor to walk on, they would not feel weightless. a)true b)false for an astronaut walking around a spinning space station, she is pushing against the spinning floor, but the floor is not pushing back. a)true b)false

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Biology, 10.07.2019 21:50, priarm8799

1. true or false; gravity is responsible for planet formation. 2. true or false; newton's universal law of gravitation states that two objects always sometimes a gravitational force on each other. 3. true or false? gravity is different on different planets.

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English, 10.10.2019 03:30, catdog5225

The occupant inside a rotating space habitat . of the future feels that she is being pulled by . artiﬁcial gravity against the outer wall of the . habitat (which becomes the ﬂoor). which statement is false? 1. centrifugal force forces her to move in a circular path. 2. at every moment her tendency is to move in a straight line path. 3. the floor provides the centrifugal force to keep her moving in a circular path. 4. the floor intercepts her path and presses against her feet.

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Wolrd-class skiers use, rather than fight, the force of gravity to carve the most efficient path dow...

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