A ______________________ universe is Sun centered

Fill in the blank(s) with correct word


heliocentric

Physics & Space Science

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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?

Physics & Space Science

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

Physics & Space Science

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

Physics & Space Science

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

Physics & Space Science