Chemistry

Chemistry, 03.07.2019 08:30, isabellatagaban

If a mass of 100.0g moves through a distance of 50.0 m with an acceleration of 25.0 m s`, how much work was necessary to move the mass?

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Physics, 29.07.2019 21:30, zanaplen27

Four particles are in a 2-d plane with masses, x- and y- positions, and x- and y- velocities as given in the table below: what is the x position of the center of mass? m 2) what is the y position of the center of mass? m 3) what is the speed of the center of mass? m/s 4) when a fifth mass is placed at the origin, what happens to the horizontal (x) location of the center of mass? it moves to the right. it moves to the left. it does not move. it can not be determined unless you know the mass. 5) when a fifth mass is placed at the center of mass, what happens to the vertical (y) location of the center of mass? it moves up. it moves down. it does not move. it can not be determined unless you know the mass.

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Physics, 05.10.2019 08:30, tkies1028

In general relativity there is a correction for the gravitational acceleration of a free falling body found in newtonian mechanics. instead of a = gm/r^2 we have a= gm/√ 1-2gm/c^2xr = gm x r^-3/2(r−rs(m))^-1 ,where r≥rs(m): = 2gm/c^2 where rs is the schwarzschild radius, a =acceleration, m =mass of gravitating body, r =distance to the mass, c =speed of light (299,792,458 m /sec) and g =gravitational constant (6.674 × 10−11 n·kg−2·m). supposing we fell into a back hole with an initial mass of m = 2 × 1030 kg (one solar mass). what would be the approximate percentage change in our acceleration if we fell one hundred meters from a distance of 2rs during which the black hole increases its mass by 1%?

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If a mass of 100.0g moves through a distance of 50.0 m with an acceleration of 25.0 m s`, how much w...

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