Physics, 14.01.2021 16:30 Tori122367
Only about 50% of the solar energy directed toward Earth penetrates directly to the surface. Explain what happens to the rest of the radiation.
Answers: 1
Physics, 21.06.2019 19:40
Ogleβ2013βblgβ0723 is an exoplanet that is similar to earth in size and proximity to its star. this exoplanet has mass m=4.18Γ1024kg and radius r=5.66Γ106m. 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 ogleβ2013βblgβ0723. c. calculate wp? , the weight of the astronaut on the surface of ogleβ2013βblgβ0723. d. calculate v, the minimum velocity required to put an object into orbit above ogleβ2013βblgβ0723. e. calculate t, the time required to complete an orbit around ogleβ2013βblgβ0723.
Answers: 3
Physics, 21.06.2019 20:00
You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. naturally, you remove it to a safer place. but before you do, you observe it as it moves from position xi = -92.9 cm to position xf = -64.9 cm along the rail, as measured from a point where one rail abuts the next. what is the snail\'s displacement Ξ΄x in centimeters?
Answers: 1
Physics, 22.06.2019 00:00
A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocketβs acceleration during the first 16-s? b. what is the rocketβs speed as it passes through a cloud 5100-m above the ground?
Answers: 1
Physics, 22.06.2019 16:00
Suppose a soccer ball is kicked from the ground at an angle 20.0ΒΊ above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.
Answers: 2
Only about 50% of the solar energy directed toward Earth penetrates directly to the surface. Explain...
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