Physics, 18.09.2019 04:00 owenwernert
Light travels at a constant speed of 3.0×108 m/s in a vacuum. (a) it takes light about 1.3 seconds to travel from the earth to the moon. estimate the distance of the moon from the earth's surface, in meters. (b) the astronomical unit (abbreviated au) is equal to the distance between the earth and the sun. one au is about 1.5×1011 m. if the sun suddenly ceased to emit light, how many minutes would elapse until the earth went dark?
Answers: 1
Physics, 22.06.2019 04:50, andrewsaul04
The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.
Answers: 2
Physics, 22.06.2019 13:30, livingfamyboys35
The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.
Answers: 2
Physics, 22.06.2019 15:00, annapittbull12
When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell
Answers: 1
Light travels at a constant speed of 3.0×108 m/s in a vacuum. (a) it takes light about 1.3 seconds t...
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