Physics, 23.11.2019 06:31 acervantes29
Suppose that a comet that was seen in 550 a. d. by chinese astronomers was spotted again in year 1941. assume the time between observations is the period of the comet and take its eccentricity as 0.997. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?
Answers: 3
Physics, 21.06.2019 17:10
Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s
Answers: 1
Physics, 21.06.2019 20:00
Player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. what is the horizontal velocity component of the ball to the nearest tenth of a m/s?
Answers: 2
Physics, 21.06.2019 21:30
The earth remains in orbit around the sun due to the force of gravity. how does the force of gravity exerted by the sun on the earth compare to the force of gravity exerted by the earth on the sun?
Answers: 1
Physics, 22.06.2019 10:10
In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the corneaβs vertex is focused on the retina?
Answers: 1
Suppose that a comet that was seen in 550 a. d. by chinese astronomers was spotted again in year 194...
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