Physics, 19.07.2019 00:00 QueenThao8933
An object's inertia causes it to come to a rest position. true or faulse
Answers: 1
Physics, 21.06.2019 19:30
The lights used by mark watley (played by matt damon) during the film the martian seem to be metal halide lamps. metal halide lamps are filled with vaporized mercury and metal-halogen compounds. when an electric current is passed through the lamp, the tube begins to glow a bright white/blue color. if you were to pass this light through a prism to separate the individual light frequencies, you would see a rainbow just as you would if using natural sunlight because of the complexity of the metal halide gas and the vast amount of possible electron transitions. (the study of light in this way is known as spectroscopy and allows astronomers to know exactly what atoms compose distant stars, simply by looking at the light they emit. the spectral lines an atom produces uniquely identifies that atom just like a fingerprint uniquely identifies a person. the momentum equation and energy equation that we have used above can be combined to give the following equation: c = e p where again p is the phonon momentum, e is the photon energy and c is the speed of light. when you divide the photon energy found in #6 by the photon momentum found in #4, do you get the speed of light? (if not, check your work for questions #4 through #6). yes no
Answers: 2
Physics, 21.06.2019 19:40
Ogleā2013āblgā0723 is an exoplanet that is similar to earth in size and proximity to its star. this exoplanet has mass m=4.18Ć1024kg and radius r=5.66Ć106m. an astronaut whose weight on earth is w=735n lands on the planet. a. calculate m, the mass of the astronaut. b. calculate gp? , the acceleration due to gravity on the surface of ogleā2013āblgā0723. c. calculate wp? , the weight of the astronaut on the surface of ogleā2013āblgā0723. d. calculate v, the minimum velocity required to put an object into orbit above ogleā2013āblgā0723. e. calculate t, the time required to complete an orbit around ogleā2013āblgā0723.
Answers: 3
Physics, 22.06.2019 08:00
What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?
Answers: 1
Physics, 22.06.2019 18:00
Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change Ī“pe in the gravitational potential energy and the change Ī“ke in the kinetic energy of the stone as it moves from its initial to its final location? options a.Ī“pe = 0 j and Ī“ke = 0 j b.Ī“pe is positive and Ī“ke is negative c.Ī“pe = 0 j and Ī“ke is positive d.Ī“pe is negative and Ī“ke is positive e.Ī“pe = 0 j and Ī“ke is negative
Answers: 3
An object's inertia causes it to come to a rest position. true or faulse...
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