Physics, 13.10.2019 23:30 BlehBlah1441
What is a light-year equal to?
a. the distance light travels in one year
b. the time it takes light to travel 10 trillion kilometers
c. the mean distance between the sun and the center of our galaxy
d. the time it takes our solar system to orbit the center of our galaxy
Answers: 3
Physics, 21.06.2019 22:30
Select the word from the list that best fits the definition classification of most stars on the h-r diagram
Answers: 1
Physics, 21.06.2019 23:00
Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's
Answers: 2
Physics, 22.06.2019 00:20
Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.
Answers: 2
Physics, 22.06.2019 03:00
If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star
Answers: 3
What is a light-year equal to?
a. the distance light travels in one year
b. the time it...
a. the distance light travels in one year
b. the time it...
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