Physics, 24.02.2021 17:00 myiacoykendall
What is the critical angle for a ray trying to pass from glass (n = 1.52) into water (n = 1.33)? (Water n = 1.33, Air n = 1.00) (Unit = deg)β
Answers: 1
Physics, 21.06.2019 21:30
Aparticle with mass 1.81Γ10β3 kg and a charge of 1.22Γ10β8 c has, at a given instant, a velocity vβ =(3.00Γ104m/s)j^. what are the magnitude and direction of the particleβs acceleration produced by a uniform magnetic field bβ =(1.63t)i^+(0.980t)j^?
Answers: 2
Physics, 22.06.2019 20:20
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 β t2)k (iv) r (t) = 2t j + (50 β t2)k (v) r (t) = (50 β 2t) i + 2t j + (50 β 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?
Answers: 2
Physics, 23.06.2019 18:10
Achild on a spinning playground ride is 0.36 m from the center of the ride. the centripetal force on the child is 19 n. what is the mass of the child if the child has a tangential 3.7 kg 13 kg 23 kg 79 kg
Answers: 3
Physics, 24.06.2019 01:20
Heat engine absorbs 2 500 j of heat from a hot reservoir and expels 1 000 j to a cold reservoir. when it is run in reverse, with the same reservoirs, the engine pumps 2 500 j of heat to the hot reservoir, requiring 1 500 j of work to do so. find the ratio of the work done by the heat engine to the work done by the pump. is the heat engine reversible
Answers: 3
What is the critical angle for a ray trying to pass from glass (n = 1.52) into water (n = 1.33)? (Wa...
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