Physics, 24.01.2022 04:00 jalenshayewilliams

Two objects gravitationally attract with a force of 100 N. If thedistance between the two objects' centers is halved (cut in half), the new gravitational attraction is...

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Ultra-high temperature (uht)

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Stars are born within the clouds of dust and scattered throughout most galaxies. a familiar example of such as a dust cloud is the orion nebula. turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction. as the cloud collapses, the material at the center begins to heat up. known as a protostar, it is this hot core at the heart of the collapsing cloud that will one day become a star. three-dimensional computer models of star formation predict that the spinning clouds of collapsing gas and dust may break up into two or three blobs; this would explain why the majority the stars in the milky way are paired or in groups of multiple stars.therefor, i would say the answer is: dust and gases contract.i hope this ! < 3

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Part a: using momentum conservation we have: direction x: (15) (7.0) + 0 = (15) (4.2) cos (-20 °) + (10) v₂ (f) cosθ (10) v₂ (f) cosθ = (15) (7.0) - (15) (4.2) cos (-20 °) (eq 1) direction y: 0 + 0 = (15) (4.2) sin (-20 °) + (10) v₂ (f) sinθ (10) v₂ (f) sinθ = - (15) (4.2) sin (-20 °) (eq 2) we divide both equations (1) and (2): left side: (10) v₂ (f) sinθ / (10) v₂ (f) cosθ = tanθ right side: - (15) (4.2) sin (-20 °) / (15) (7.0) - (15) (4.2) cos (-20 °) clearing the angle we have: θ = tan⁻¹ [- (15) (4.2) sin (-20 °) / (15) (7.0) - (15) (4.2) cos (-20 °)] θ = 25 ° we use any of the equations to find the speed. from (2) we have: (10) v₂ (f) sinθ = - (15) (4.2) sin (-20 °) v₂ = - (15) (4.2) sin (-20 °) / (10) sin25 ° answer: v₂ = 5.1m / s note: θ = 25 ° (direction is in the first quadrant, north of east) part b: initial kinetic energy: k (i) = 0.5 (15) (7.0) ² = 370j (rounded) final kinetic energy: ke (f) = 0.5 (15kg) (4.2m / s) ² + 0.5 (10kg) (5.1m / s) ² = 260j (rounded) answer: a difference of 110j, so it was an inelastic collision.

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d. 1 → 4 → 2 → 3 (just took the test)

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Two objects gravitationally attract with a force of 100 N. If thedistance between the two objects' c...

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