Which star is the hottest star?
A) M
B) G
C) O
D) A
E) Can't tell from information provided.
C
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The planet Venus requires 225 days to orbit the Sun, which has a mass M = 1.99 × 1030 kg, in an almost circular trajectory. Calculate the radius of the orbit and the orbital speed of Venus as it circles the Sun.
What will be an ideal response?
Hydrogen exists as a gas, liquid, and solid within Jupiter
Indicate whether the statement is true or false
As a 2.0-kg object moves from 
m to 
m, the constant resultant force acting on it is equal to 
align="middle" /> N. If the speed of the object at the initial position is 4.0 m/s, what is its kinetic energy at its final position? A. 62 J B. 53 J C. 73 J D. 86 J E. 24 J
A bar magnet is falling through a loop of wire with constant velocity. The south pole enters first. As the magnet leaves the wire, the induced current (as viewed from above):
a. is along the length of the magnet. c. is counterclockwise. b. is clockwise. d. is zero.