Physics, 12.02.2020 07:09 nyceastcoast
In a test of a new missile defense system, a missile is fired on a trajectory that would directly
strike the center of a certain bunker, which is 20 m long. A laser flash from the bunker
ignites the missile’s fuel, causing it to explode into two fragments, one with 1.8 times the
mass of the other. If the fragments land at the same time 52.7 m apart, by how much does
the larger fragment miss hitting the bunker? Ignore the effects of air resistance. (Hint: Think
about the trajectory of the missile if it had not exploded into two fragments. Is the explosion
an internal interaction or an external interaction? How does each kind of interaction affect
the motion of the center of mass of a system?)
Answers: 1
Physics, 22.06.2019 23:30, alangonsales6232
You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?
Answers: 3
Physics, 23.06.2019 01:30, michellermccarty
Listed following are various physical situations that describe how light interacts with matter. match these to the appropriate category. 1) transmission? -visible light meets clear glass -visible light does not pass through a black wall -red light hits a red sweatshirt -light comes from your computer screen -cell phone signals pass through walls -blue light hits a red sweatshirt -white light hits a white piece of paper -light comes from a light bulb
Answers: 1
In a test of a new missile defense system, a missile is fired on a trajectory that would directly
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