Physics, 09.01.2020 06:31, kodakcam02
A3600 kg rocket traveling at 2900 m/s is moving freely through space on a journey to the moon. the ground controllers find that the rocket has drifted off course and that it must change direction by 11◦ if it is to hit the moon. by radio control the rocket’s engines are fired instantaneously (i. e., as a single pellet) in a direction perpendicular to that of the rocket’s motion. the gases are expelled (i. e., the pellet) at a speed of 4300 m/s (relative to the rocket). what mass of gas must be expelled to make the needed course correction? answer in units of kg.
Answers: 2
Physics, 21.06.2019 19:30, sariyamcgregor66321
Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.
Answers: 3
Physics, 22.06.2019 15:30, haha81
Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.
Answers: 2
Physics, 22.06.2019 15:50, rosepetals2938
If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?
Answers: 1
Physics, 22.06.2019 16:30, taliajohnsom9901
Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor
Answers: 1
A3600 kg rocket traveling at 2900 m/s is moving freely through space on a journey to the moon. the g...
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