Recent content by AdoobII

thank you so much, actually i found youtube is more friendly and i have learned quite new things through it, at least that was faster than google, thank you so much for your reply :)

Greetings, I have a science project to make and i have an idea but i am not so sure about it, the idea is to convert thermal energy into electrical energy which will run a small engine. I want to put that device in a cooking pan and that heat will be converted into electrical energy which will...

I got a very weird answer. t = distance\speed = 0.25\5 = 0.05 seconds Δy = 1\2 g t^2 = 1\2(-9.81)x(0.05)^2 = 0.012m (the answer in the calculator is -0.012m but the distance isn't targeted variable) V_fy = gt = (-9.81)x0.05 = -0.4905 m\s it's very weird because the speed on X axis is...

the speed of the ball on the X axis is :- 5 m/s the ball passed 0.25 m on the X axis the chair height is delta Y Edit:- i will solve this question and i will take picture of it and upload it to see if my answer is correct or not

the distance is the distance between the chair base and the ball landing area, i can take a picture of the question but it's in arabic :/, and i tried to translate it with my best english knowledge, maybe i missed some words but i think the numbers are right :3

Actually, my physics teacher in school solved another question, it's somewhat relative but that question was about the projectiles with corners, he just replaced Vy with (ViSinθ) so i said why i don't just replace delta Y with 1/2gt^2, thanks a lot guys i really appreciate this fast help :)

Thanks a lot, i really feel stupid now, i seriously feel stupid :< Lol i really didn't though of x by speed because i though i will not use this simple equations anymore xD anyway, i think every thing in physics is relative now, and thanks a lot, you saved my day :D

Homework Statement Hi all, in my grade 11 book there is a question, and the question is :- there is a ball rolling on a chair by a speed of 5.0 m/s on the X axis, the ball hit the ground on a distance of 0.25 m on the X axis, What is the Δy and what is the speed on Y axis ϑx (speed on X axis)...