1. Легковой автомобиль длиной l1 = 4,5 м, движущийся со скоростью v1 = 90 км/ч, обгоняет авто-поезд длиной l2 = 15 м, движущийся со скоростью v2 = 60 км/ч. Определить длину участка обгона L, т.е. расстояние между точкой, в которой передний бампер автомобиля поравняется с задним бампером автопоезда, и точкой, в которой задний бампер автомобиля поравняется с передним бампером автопоезда. Как изменится L, если скорость автомобиля уменьшится до v'1=75 км/ч?
90 км/ч = 25 м/с
60 км/ч = 16,6 м/с
75 км/ч = 21 м/с
t1 = (4,5 + 15)/(25 – 16,6)=2,32с
L1 = 2,32*25 = 58 м
t2 = (4,5 + 15)/(21 – 16,6)=4,43с
L2 = 4,43*21 = 93 м
2. В "рельсотроне", или электромагнитной пушке, снаряд разгоняется магнитным полем. Какова должна быть длина разгонного участка "рельсотрона", чтобы снаряд за t = 0,01 с разгонялся до скорости v = 8 км/с? Считая силу магнитного воздействия на снаряд постоянной, определить, во сколько раз она превышает вес снаряда на поверхности Земли.
S = vt = 0.01* 8000 = 80 м
Среднее ускорение аср =∆ v/∆t = 8000/0,01 = 800000 м/с2
Подскажите как определить, во сколько раз сила превышает вес снаряда?
Первая верно,только вычисления не проверял. Вторая неправильно - там же скорость меняется,а Вы считаете, что она всё время одинаковая.
Запишите выражение для силы и для веса,поделите одно на другое.
http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=3769343
https://forumreklamowe.com/User-hssolar
https://experiment.com/users/hssolar
https://motion-gallery.net/users/851675
https://leetcode.com/u/hssolar/
https://pumpyoursound.com/u/user/1539589
https://www.fantasyplanet.cz/diskuzni-fora/users/hssolar
https://all4.vip/p/page/view-persons-profile?id=95184
https://www.forum-joyingauto.com/member.php?action=profile&uid=54456
https://www.mikocon.com/home.php?mod=space&uid=264774
https://www.myminifactory.com/users/homesunsolarhssolar
https://scrapbox.io/hssolar/
https://gravatar.com/thoughtfullygenerous7967c23791
https://slatestarcodex.com/author/hssolar/
https://hanson.net/users/hssolar
http://www.fanart-central.net/user/hssolar
https://www.rwaq.org/users/hssolar
https://www.zubersoft.com/mobilesheets/forum/user-99765.html
https://bulkwp.com/support-forums/users/hssolar/
https://forums.liyuans.com/user/hssolar
https://zdravei.bg/forums/thread/8041/
https://www.bol-chat.de/forum/viewtopic.php?t=12017
https://www.freebeg.com/forum/showthread.php?tid=82792
https://bamboochopsticks.storeinfo.jp/posts/57925124
https://zybuluo.com/bothbest/note/2631180
https://www.cssauw.org/forum/thread-41012-1-1
https://forums.liyuans.com/thread/11958
http://www.prepody.ru/topic24939.html
https://wap2p.com/f/showthread.php?tid=103409
https://www.chambers.com.au/forum/view_post.php?frm=1&pstid=112798
https://www.xcspa.com/hjt-solar-panels-the-future-of-clean-energy-has-arrived/
https://www.skudci.com/forum/1122114/are-highefficiency-solar-panels-worth-cost
https://worthitorwoke.com/forum/topic/how-to-choose-high-efficiency-solar-panels-for-maximum-savings/
https://www.auseka.com.au/blog/are-automated-solar-manufacturing-techniques-improving-quality
https://scrapbox.io/hssolar/The_Hidden_Benefits_of_High_Conversion_Efficiency_Solar_Panels
https://paidforarticles.in/hjt-panels-how-they-compare-to-traditional-solar-technology-886338
https://drukarnia.com.ua/articles/the-role-of-conversion-efficiency-in-solar-panel-longevity-1Vbkg
https://whenyouriseup.activeboard.com/t72228025/choosing-the-right-solar-panel-n-type-vs-p-type-explained/
https://www.myminifactory.com/stories/bamboo-vs-hardwood-flooring-which-one-wins-in-real-life-68f2de16e8a0b
https://roughstuffmedia.activeboard.com/t72228029/why-n-type-solar-panels-are-worth-the-investment/
https://138054.activeboard.com/t72228036/harnessing-the-sun-why-hjt-technology-is-the-key-to-better-s/
https://parcheweb.com/forum/general/charlemos-de-nosotras/94304-exploring-the-benefits-of-hjt-technology-in-solar-energy-solutions
https://drsridharias.com/forums/discussion/history/maximizing-your-solar-investment-the-case-for-high-efficiency-panels
It
https://market.50discount-sale.com/FRLFrG/
https://j.elesse-new.com/?channel=FRLFrG
Prostamexil ph
https://market.50discount-sale.com/eADPGj/
https://prostamexil-new.com/?channel=eADPGj
Crystal Vision ph
https://market.50discount-sale.com/a36KVO/
https://crystalvision-new.com/?channel=a36KVO
OcurePlus ph en
https://market.50discount-sale.com/DeG815/
https://ocureplus-new.com/?channel=DeG815
Hollywood Smile ph en
https://market.50discount-sale.com/q6z2Op/
https://x.com/denisyakovlev68/status/1841524466121376195
https://two.hollywoodsmile-new.com/?channel=q6z2Op
GlucoCalm ph
https://market.50discount-sale.com/sKHGIY/
https://x.com/denisyakovlev68/status/1841527800836378804
https://glucocalm-new.com/?channel=sKHGIY
https://x.com/denisyakovlev68/status/1841528398713344139
CollagenAX ph en
https://market.50discount-sale.com/YTVoEq/
Maxiflex en
https://market.50discount-sale.com/9Qd3X5/
LiveroMAX Z
Lung Active Z
optifix
https://market.50discount-sale.com/PcVu7s/
https://b.optifix-new.com/?channel=PcVu7s
Fungonal
https://market.50discount-sale.com/zg8edO/
https://fungusclean-new.com/?channel=zg8edO
Diabextan ar
https://market.50discount-sale.com/WXnrwI/
https://g.diabextan-new.com/?channel=WXnrwI
Urixan Active
https://market.50discount-sale.com/r2bjrH/
https://urixanactive-new.com/?channel=r2bjrH
Aurifix
https://aurifix-new.com/?channel=2Ycwtd
Muscle Art
https://market.50discount-sale.com/vQ5jKd/
http://muscleart-new.com/?channel=vQ5jKd
https://market.50discount-sale.com/QYPBXo/
https://a.muscleart-new.com/?channel=QYPBXo
https://a.muscleart-new.com/?channel=QYPBXo&lang=en
https://a.muscleart-new.com/?channel=QYPBXo&lang=ph
https://x.com/denisyakovlev68/status/1841707871282864425
https://x.com/denisyakovlev68/status/1841708238212895163
Vigorense ph
https://market.50discount-sale.com/ukycNN/
https://x.com/denisyakovlev68/status/1841709153854853222
https://e.vigorense-new.com/?channel=ukycNN
https://x.com/denisyakovlev68/status/1841709636124344646
heart keepp
https://market.50discount-sale.com/zWsVDO/
https://b.heartkeepp-new.com/?channel=zWsVDO
https://market.50discount-sale.com/8ht13z/
https://e.heartkeepp-new.com/?channel=8ht13z
https://market.50discount-sale.com/GjYj98/
https://f.heartkeepp-new.com/?channel=GjYj98
https://market.50discount-sale.com/70Ts3f/
http://masterclass.infoorel.ru/otzyvy.php?id_public=4
http://masterclass.infoorel.ru/otzyvy.php?id_public=5
https://safepal.io/?ref=denisyakovlev
https://www.safepal.com/ru/?ref=denisyakovlev
https://x.com/denisyakovlev68/status/1758469452813787557
https://x.com/denisyakovlev68/status/1768357830073995525
https://market.50discount-sale.com/ANB3SF/
https://euro-shop.store
https://euro-shop.store/meta/insulinorm/de/diabetes/
https://euro-shop.store/meta/insulinorm/de/v1/
https://euro-shop.store/meta/insulinorm/de/health/
https://euro-shop.store/meta/insulinorm/de/v1/
https://x.com/denisyakovlev68/status/1780186943860494528
http://land2-slovakia-paraxan.rocket.denisyakovlev.moscow
http://land2-croatia-paraxan.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1721984757590860212
https://greattop-goods.press/menspluspower/ch/v1/?geo=56046&flow_id=k5a53nzz8o&click_id=zmnFjG2Pzc&sub1=sub1&sub2=sub2&sub3=sub3&sub4=sub4&sub5=sub5&facebook=&pl=6598&lp=9035
https://www.tbank.ru/cards/debit-cards/tinkoff-black/mgm/friends-day/? masterData=9f71bc0401e895e4f93c018348efd14b150fec3b772b17c1a0ea4174df5f387569974
f3acb5163bf763fb83dea2e65fa9ea3518fc5b808aca74464848888d5f87b744d03926d6edad287d
1b3c5d8d40d838b5d6bf5345a22ecc0e7f3de021ffbac761ce650d90e3b8f8cacd7e690c007f1cfc
ce4669d9bccb779fda965b9236e&utmSource=mgm_mb_ios&utm_source=mgm_mb_ios&utmMedium=sn_tg&utm_medium=sn_tg&short_link=7TyspdwtaLp&_deep_link_sub1=7TyspdwtaLp&httpMethod=GET
https://www.tinkoff.ru/baf/7TyspdwtaLp
https://www.tbank.ru/baf/7TyspdwtaLp
https://tlinks.run/s/denisyakovlevru?q=tinkoff
https://x.com/denisyakovlev68/status/1756994551842013415
https://greattop-goods.press/diadrops/rs/v1/?geo=33459&flow_id=pfg4xxir05&click_id=1oTMQi0wXg&sub1=sub1&sub2=sub2&sub3=sub3&sub4=sub4&sub5=sub5&facebook=&pl=7016&lp=9564
!
https://bloghealthy.asia/black-rhino/th/truth/?click_hash=KZ2Kg6hAPO&flow_hash=9ept8z1vj5&sub1=sub1&sub2=sub2&sub3=sub3&sub4=sub4&sub5=sub5&facebook=&pl=6977
http://land1-bulgarian-paraxan.rocket.denisyakovlev.moscow
http://pr1-bulgarian-paraxan.rocket.denisyakovlev.moscow
http://land2-bulgarian-paraxan.rocket.denisyakovlev.moscow
http://land3-bulgarian-paraxan.rocket.denisyakovlev.moscow
http://land4-bulgarian-paraxan.rocket.denisyakovlev.moscow
http://land1-latvia-paraxan.rocket.denisyakovlev.moscow
http://land2-latvia-paraxan.rocket.denisyakovlev.moscow
http://pr1-litva-paraxan.rocket.denisyakovlev.moscow
http://land1-litva-paraxan.rocket.denisyakovlev.moscow
http://land2-litva-paraxan.rocket.denisyakovlev.moscow
http://pr1-polish-paraxan.rocket.denisyakovlev.moscow
http://land1-polish-paraxan.rocket.denisyakovlev.moscow
http://land2-polish-paraxan.rocket.denisyakovlev.moscow
http://land3-polish-paraxan.rocket.denisyakovlev.moscow
pt
http://pr2-portugal-paraxan.rocket.denisyakovlev.moscow
http://land1-portugal-paraxan.rocket.denisyakovlev.moscow
http://land1-hungary-deluron-forte.rocket.denisyakovlev.moscow
http://land1-slovakia-deluron-forte.rocket.denisyakovlev.moscow
http://land1-czech-deluron-forte.rocket.denisyakovlev.moscow
http://ro-prostatitis-cbdus-plus.ev.nickyfora.ru
http://2-ro-prostatitis-cbdus-plus.euro-shop.store
http://ro-prostatitis-cbdus-plus.euro-shop.store
http://2-news-hu-prostatitis-cbdus-plus.euro-shop.store
http://hu-prostatitis-cbdus-plus.euro-shop.store
http://2-hu-prostatitis-cbdus-plus.euro-shop.store
Fat Loss Drink
https://twitter.com/denisyakovlev68/status/1796424759191982303 tw sg ml
https://x.com/denisyakovlev68/status/1796424759191982303 tw sg ml
https://www.threads.net/@denisbeta/post/C_V328avwND
http://2-bg-urosaf.euro-shop.store Bg
http://lt-keramin-keraderm-cream.euro-shop.store
https://x.com/denisyakovlev68/status/1836706085341741487
http://land1-paraxan-estonia.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815293277970809095
FIRST AUSTRIA
http://land1-minichopper-hungary.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815295066505977989
http://land2-minichopper-hungary.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815296455651037393
https://x.com/denisyakovlev68/status/1815296827601903943
http://land1-minichopper-romania.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815297948995219886
http://land2-minichopper-romania.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815299084775047538
https://x.com/denisyakovlev68/status/1815299440535540042
Steplex
http://land1-espan-steplex-gel.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815311706199035920
http://land1-espan-steplex-gel.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815312000714756251
https://x.com/denisyakovlev68/status/1815312543558009002
http://land2-espan-steplex-gel.rocket.denisyakovlev.moscow
http://land2-espan-steplex-gel.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815314041805664295
https://x.com/denisyakovlev68/status/1815314292360831223
http://pr1-portugal-steplex-gel.rocket.denisyakovlev.moscow
http://pr1-portugal-steplex-gel.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815316602189156457
https://x.com/denisyakovlev68/status/1815316778228019396
http://land1-portugal-steplex-gel.rocket.denisyakovlev.moscow
http://land1-portugal-steplex-gel.rocket.denisyakovlev.moscow
https://x.com/denisyakovlev68/status/1815317532070572252
https://x.com/denisyakovlev68/status/1815317875177263272
1
Русская версия Invision Power Board (http://www.invisionboard.com)
© Invision Power Services (http://www.invisionpower.com)