Wednesday
June 19, 2013

# Posts by Fred

Total # Posts: 280

Chemistry
3.75 x 10^-2g

physics
A student applies an upward force of 49 N to a 5.4-kg physics textbook. Find the book’s acceleration (positive for up, negative for down).

Physics
Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 40.0s to speed up from rest to its top speed of 1 rotation every 1.40s . The astronaut is strapped into a seat 4.50m from the axis. What is the astronaut's tangential accelera...

physics
I can do the work, just need the formulas!

physics
The max speed of a 3.1 kg mass attached to a spring is .68 m/s and the max force exerted on the mass is 11N. What is the amplitude of motion on the mass? What is the force constant of the spring? And what is the frequency of oscillation?

Science
What is the pronunciation rebus of helium?

Algebra
so it would pretty much stay the same?

Algebra
this is wierd to write but ill do my best. 12 4 square root 2 (the 4 is on top of the radical if that helps) - 7 4 square root 312 (again the 4 is on top of the radical) if this is confusing ill try to break it down more. thank you

Science
How many electrons are present in the outer shell of each element?