2025 When throwing punches, mantis shrimp can strike at the speed of a .22 caliber bullet (about 1,316 kmph or 818 mph)—one of the fastest movements in the animal kingdom. Tim Stevens, Ars Technica, 22 Feb. 2025 Verb An automobile sped around another car stopped for crossing signals...
A fighter plane flying horizontally at an altitude of 2km with speed of 540 kmph passes directly over head an anti aircraft gun.If the gun can fire a bullet at the muzzle speed of 500ms−1,at what angle with the vertical the gun should fire the bullet so that the bullet hits the ...
When to invest in high speed rail 1 Introduction High speed rail (HSR) is usually regarded as comprising services operating at 250 kmph or more, and these speeds invariably require construction of new purpose built lines, although high speed trains may run at up to 200–225 kmph on upgraded...
ChrisNash, inJournal of Rail Transport Planning & Management, 2015 1Introduction High speed rail(HSR) is usually regarded as comprising services operating at 250kmph or more, and these speeds invariably require construction of new purpose built lines, althoughhigh speed trainsmay run at up to 200...
cost for this upgrade was around Rs 3,200 crore. Similarly, the German government also presented a feasibility study to the railway board in 2018 for a bullet train project with a maximum speed of 320 kmph on the Chennai-Arakkonam-Bengaluru-Mysuru route. But these proposals remained o...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...