Two plane mirrors stand facing each other, 3.08 m apart, and a woman stands between them. The woman faces one of the mirrors from a distance of 1.30 m and holds her left arm out to the side of her body with the back of her left hand facing the closer mirror.(a) What is the apparent position of the closest image of her left hand, measured perpendicularly from the surface of the mirror in front of her?
m behind the nearest mirror
(b) Does it show the palm of her hand or the back of her hand?
(c) What is the position of the next closest image?
m behind the nearest mirror
(d) Does it show the palm of her hand or the back of her hand?
(e) What is the position of the third closest image?
m behind the nearest mirror
(f) Does it show the palm of her hand or the back of her hand?
Answers: 1
Physics, 22.06.2019 02:30
Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s.calculate eddy’s power rating
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Physics, 22.06.2019 15:00
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants
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 − 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?
Answers: 2
Two plane mirrors stand facing each other, 3.08 m apart, and a woman stands between them. The woman...
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