Speaking about seeing- what part of the Sun do we see?
A: Inner Core
B: Radiation Zone
C: Convection Zone
D: Photosphere
E: Corona
Ans: D: Photosphere
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Inelastic collisions occur when
A. The masses are all the same B. There is no compression during the collision C. Bonds between the objects are broken D. The objects stick together
The primary mirror in an astronomical telescope must be a
a. half-silvered mirror b. convex mirror c. concave mirror d. plane mirror.
Projectile Motion: A player hits a tennis ball into the air with an initial velocity of 32 m/s at 35° from the vertical. How fast is the ball moving at the highest point in its trajectory if air resistance is negligible?
Fill in the blank(s) with the appropriate word(s).
A jet traveling at 1500 km/h passes overhead. The sonic boom produced is heard by
A) a listener on the ground. B) the jet pilot. C) both of these D) neither of these