Physics, 29.06.2020 02:01 angelasequen5656
57. A particle of mass m moves with a constant acceleration a. If the initial position vector and velocity of the parti cle are r, and v, respectively, use energy argument to show that its speed wy at any time satisfies the equation w = w '+ 2a- (-)
Answers: 2
Physics, 22.06.2019 20:20, NNopeNNopeNNope
The base of a 50-meter tower is at the origin; the base of a 50-meter tree is at (0, 50, 0). the ground is flat and the z-axis points upward. the following parametric equations describe the motion of six projectiles each launched at time t = 0 in seconds. (i) r (t) = (50 + t2)k (ii) r (t) = 2t2 j + 2t2k (iii) r (t) = 50 i + 50 j + (50 − t2)k (iv) r (t) = 2t j + (50 − t2)k (v) r (t) = (50 − 2t) i + 2t j + (50 − t)k (vi) r (t) = t i + t j + tk (a) which projectile is launched from the top of the tower and goes downward? at time t = , the projectile hits the ground at point (x, y, z) = . (b) which projectile hits the top of the tree?
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Physics, 23.06.2019 07:00, kaitlyn114433
What is the period of a wave traveling 5 m/s if its wavelength is 20 m/s
Answers: 1
57. A particle of mass m moves with a constant acceleration a. If the initial position vector and ve...
Biology, 19.06.2020 18:57