The 2004 landings of the mars rovers spirit and opportunity involved many stages, resulting in each probe having zero vertical velocity about 12 m above the surface of mars. determine
(a) the time required for the final free-fall descent of the probes
(b) the vertical velocity at impact. the mass of mars is 6 . 419 × 10 23 kg , and its radius is 3 . 397 × 10 6 m
Answers: 3
Physics, 22.06.2019 13:00
Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?
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Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?
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Physics, 22.06.2019 15:10
What does si stand for,when referring to a system of measurement
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