A ______________________ universe is Sun centered
Fill in the blank(s) with correct word
heliocentric
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Two alpha particles (helium nuclei) are separated by 
m. What is the magnitude of the force between the particles due to their charge?
A. 
B. 
C. 
D. 14 N
E. 58 N
Consider two-dimensional steady conduction near a curved boundary. Determine the difference equation for an appropriate control volume near the node (i, j). The boundary experiences convective heat transfer through a coefficient h to ambient temperature Ta. The surface of the boundary is given by ys = f(x).
GIVEN
- Two-dimensional steady conduction near a curved surface
- Convective boundary condition
- Curved surface given by ys = f(x)
FIND
(a) Difference equation for a node i, j near the surface
SKETCH
How would you explain to your friend, who knows nothing about astronomy, the way to predict the next eclipse of the Sun?
What will be an ideal response?
An 8.0 kg-m2 wheel with 155. Joules of rotational kinetic energy requires what torque to bring it to rest in 4.0 s?
A) -1.6 N-m B) -1.2 N-m C) +0.88 N-m D) -1.8 N-m E) -1.0 N-m