then through a plane mirror (I could put that all down in the title!)
Homework Statement
A bright object 1 cm tall is located at x = -6 cm. There is a thin lens atx = 0 with focal length f = 4 cm, and a plane mirror located at x = 7 cm. Light from the object passes through the lens, reflects...
My professor asked us to use the heat equation to compare temperature change with the specific heat of three metals. I have no idea of what the heat equation is. I read a little bit about it on Wikipedia, but the equation there makes no sense to me. I'd really appreciate if anyone could help me...
For the simple pendulum lab, I have to find the percent difference between my theoretical and experimental velocity. I found out my theoretical velocity as I used the conservation of energy to generate an equation for v, but I'm having a hard time calculating my velocity from my experimental...
[SIZE="4"][FONT="Book Antiqua"]I did a Hooke's Law lab in class last week and one of the post-experiment questions asks to explain why the graph made should be a straight line and what should the slope and y-intercept be in terms of quantities in this lab? I know that Hooke's Law demonstrates...
Just copy and paste this symbol:
μ
where you need it, and to do subscripts or superscripts, just look at the toolbar at the top of the thread entry and you'll se a bold X with blue 2 subscript/superscript. It's near to big blue eye symbol and the TV icon!
I have no question in particular I need help solving but would just like to understand what the heck is a phase constant? I keep on reading different things in Wikipedia, my textbook, Cramster... I'm just not quite sure what it is exactly and how to find it in a SHM problem. I read in my...
I'm sorry, I don't understand. Why should I have to take the derivative if I already have an equation tailored to this situation? Maybe I'm not understanding something...
Homework Statement
In the figure below, a 74 kg man is on a ladder hanging from a balloon that has a total mass of 260 kg (including the basket passenger). The balloon is initially stationary relative to the ground. The man on the ladder begins to climb at 2.5 m/s relative to the ladder...
Hi! I'm trying to understand the concept of the center of mass. I know the center of mass is the point within the object where it could be considered that the entire mass of the object lies, thus forces are going through this center, but how is it possible that the center of mass could move...
I did a Newton's 2nd Law experiment for my physics lab. One of the write-up questions asks to identify at least 2 causes why your calculated value of g is not equal to 9.8 m/s2. It also asks to explain how would each cause affect your data and what would make the experimental value bigger or...
I can use the kinematics equations, but my only problem is A) don't know the time as our prof didn't ask us to do that, B) do not know the initial or final velocity. That leaves me with a lot of unknown variables to work with. The speed I calculate in this question is suppose to help me solve...
R is the range/distance and g is acceleration due to gravity. The original equation was this:
R = [(v0^2)(sin 2θ)]/g
where v0 is the initial velocity. I can't do subscripts here, not sure if I can...
I'm doing a physics lab write-up. It was a projectile lab launching the projectile horizontally. The projectile was launched at a higher elevation (the table) down to the ground.
Homework Statement
Calculate how fast the projectile came out of the launcher. Use the data obtained.
Well, my...