Physics, 11.09.2019 21:10, angeladominguezgarci
Aball is thrown horizontally from the top of a 65 m building and lands 115 m from the base of the building. ignore air resistance, and use a coordinate system whose origin is at the top of the building, with positive y upwards and positive x in the direction of the throw.
(a) how long is the ball in the air in seconds?
(b) what must have been the initial horizontal component of the velocity in m/s?
(c) what is the vertical component of the velocity just before the ball hits the ground in m/s?
(d) what is the magnitude of the velocity of the ball just before it hits the ground in m/s?
Answers: 1
Physics, 22.06.2019 15:10, Bgreene2377
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
Physics, 22.06.2019 18:30, hannahkharel2
Acar starts from rest at a stop sign and reaches a velocity of 25 m/s w in 4 seconds. determine the acceleration of the car. question 3 options: a) 6,25 m/s2 b)6.25 m/s c)100 m/s2 d)100 m/s
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Physics, 22.06.2019 21:30, carleygalloway103
Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?
Answers: 1
Aball is thrown horizontally from the top of a 65 m building and lands 115 m from the base of the bu...
Mathematics, 05.06.2020 15:57