Recent content by jsm6252

thank you i'll try and do some research

Homework Statement How do i work out the final position and x,y velocities of a single point on a cartesian plane after it rotates around another point. We are given an initial x,y velocity. Homework Equations unknown at this stage The Attempt at a Solution

how do we calcaulate the gravitational force of a marble with a mass of 3.66 grams

thank you

not for class just general interest as i saw a documentery about the universe

thank you

could you please give me an example.it's seems easier to follow with a few figures in equations many thanks

if the center of the Earth was hollow would you float around like you were in space.

my question leads to something bigger but to start g force on Earth is 9.8m/s2 for simlicity let's say 10. 1-is it rite to say if you drop an object in the 1st sec its acceleration is 10m/s2 in the 2nd sec it's 100m/s then in the 3rd sec it's 10000 m/s 2-if the above is correct what is the...

how did you calculate the time

could you please give me an example. physics is not my area of xpertise

does this mean that g on the serfice of the Earth is 9.8ms2 so 1/4 of the way down g is about 2.5ms2

if we made a hole from one side of the planet all the way through the Earth to the other side and jumped into it. it would take 42 minutes to get through to the other side before falling back down. my question is how do we caculate the magic 42 min time ?