Recent content by solo

A straight horizontal pipe with a diameter of 1.0 cm and a length of 50 m carries oil with a coefficient of viscosity of 0.12 N · s/m2. At the output of the pipe, the flow rate is 9.0 10-5 m3/s and the pressure is 1.0 atmosphere. Find the gauge pressure at the pipe input I used the formula...

yes thank you it is finally clear G ( 5.69 x 1-^26) / (170,000,000)^2 = v^2/r finally i got it :D

coudl you please clarify how to use the radius and orbital velocity to find the period? my texctbook doesn't give a good explanation? thanks F = m v^2 / r so it would be G m m(e) / r^2 = m v^2 / r what would m(e) be

F = m v^2 / r is centripetal force right and thanks for the help

i have no idea how to do this :( Venus is an average distance of 1.08x10^8 km from the sun. Estimate the length of the Venutian year given that the Eearth is 1.50x10^8 from the sun on the average? answer in years. one more :( the rings of saturn are composed of chunks of ice that...