Hi,
I need to build a telescope for my physics class.
I need to use any 3 lenses(converging or diverging) and 1 mirror.
I was thinking of using an achromatic telescope design for that.
However I am not sure what kind of lenses to use and whether I should make the eyepiece from two lenses or just...
I'm really sorry but I'm a bit confused about the wording, if the lowest point is 86.6cm then I just subtract this from 100cm therefore the height of the mass before it is released is 13.6cm? I just can't figure it out. Can you please give me a hint or some further explanation.
Thank you for...
So by I found out the vertical distance from the support point is 86.6cm, however it does not make sense, if the length is 100cm wouldn't the height at rest be the same?
I can continue from here but I need explanation about the height.
Thank you again
Homework Statement
Calculate the maximum speed of 100g pendulum mass when it has a length of 100cm and an amplitude of 50cm.
Homework Equations
I think that Eg=mgh and Ek=0.5mv^2 are related to this problem.The Attempt at a Solution
I'm not really sure how to start this problem as I don't know...
Homework Statement
Determine the magnitude of the force of gravity acting on a 340 kg satellite, 850km above Earth's surface.
Homework Equations
So I dedcided to use the Universal Gravitation Law:
Fg = (Gm1m2)/d^2
The Attempt at a Solution
m1=5.98E24 (earth's mass)
m2=340kg...
Hello,
I need some help figuring out how to proceed.
Homework Statement
Make up a ruler, that can measure human reaction time in time intervals of 0.05s. There supposed to be 6 intervals in total.
We did a similar experiment in class, where a student drops a ruler and I need to catch it as...
Hello,
I can't understand 2 questions from my math homework can you please explain how I am supposed to do that?
1. Find the equations of the medians of the triangle with vertex coordinates at J(2,-2) K(4,-1) and L(-2,-5).
2. Find the equation of the perpendicular bisector of a chord of...