Physics, 19.11.2019 06:31 zackarygonzalez1028
Most geologist believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, throwing up so much dust that the sun was blocked out for a period of many months. suppose an asteroid with a diameter of 2.0 km and a mass of 1.0×10^13kg hits the earth with an impact speed of 4.0×10^4m/s. a. what is the earth's recoil speed after such a collision? (use a reference frame in which the earth was initially at rest.) b. what percentage is this of the earth's speed around the sun? (use the astronomical data inside the back cover.)
Answers: 3
Physics, 22.06.2019 07:40
An object's buoyant force and weight mean the same thing.a. trueb. false
Answers: 2
Physics, 22.06.2019 15:00
What pressure difference is required between the ends of a 2.0-m-long, 1.0-mm-diameter horizontal tube for 40 c water to flow through it at an average speed of 4.0 m/s?
Answers: 1
Physics, 22.06.2019 15:10
Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k
Answers: 1
Most geologist believe that the dinosaurs became extinct 65 million years ago when a large comet or...
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