Hi,
I have been solving one problem recently. I need to calculate, how many times faster is the aging under my UV lamp compared to the real sunlight exposure.
I am pretty sure it will depend on the distance of the sample from the UV radiation source, it´s intense and exposure time.
I would also...
Homework Statement
Solve free fall from height h to the Earth´s surface in the place longitude φ. During solving, Consider gravitation acceleration as a constant for the whole trajectory, so g=constant. (consider a homogeneous gravity field) and variables which are including angular speed ω...
Hi,
I would need some help with my homework. I am lost.
Solve free fall from height h to the Earth´s surface in the place with geographical width φ. During solving, omit addiction gravitational acceleration to the distance. (consider a homogeneous gravity field) and variables which are...
Hi,
I would need some help with my homework. I am lost.
Solve free fall from height h to the Earth´s surface in the place with geographical width φ. During solving, omit addiction gravitational acceleration to the distance. (consider a homogeneous gravity field) and variables which are...
Here is 2am, and I am mad at myself, sorry. I know it will diminish as r increase. I can write is an (r-R), assuming R is the middle of Earth. Do you mean this?
I really appreciate that you help me, but I don't understand you now. I can rewrite ag as ag=H(Mz)/R^2 ...where H is gravity constant and Mz is weight of the earth.
I understand why result looks like it looks. Except the "2".I have no idea where I got it from. But I do not know how to get that...
Maybe I am totally already useless today, but I got similar example in my study textbook (its from my university, and in Czech language, but i try to post it)
so I tried to solve it in this way, but I am stuck. Hope you will understant that, its just series of the formulas, and the "v" should...
Yes, my bad, initial mass, sorry.
The forces acting on it? Gravity force, I guess. ..I am not pretty sure what do you mean by the "net force". And some differential equations..
I got through d/dt=-km0e^(-kt) to m(dv/dt)=-mg+kmu, but, i am lagged now.
Homework Statement
Hi, I would like to apologie for my bad english, but I will try to write my problem as good as I can.
I have a homework...From one stage rocket with initinial speed [m[/0] Ciolky´s number C are escaping gasses with the speed u.
Let´s assume that weight of the rocket is...