A ball is launched from ground level at 25 m/s at an angle of 31° above the horizontal. How far does it go before it is at ground level again?
a. 34 m
b. 94 m
c. 28 m
d. 56 m
e. 14 m
d
Physics & Space Science
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Light rays from a distant source __________________, assuming the light does not pass through any cloud-like nebulae
a. are perpendicular b. focus to an image c. focus to a point d. are parallel
Physics & Space Science
You have taken a picture of a galaxy 1 billion light years away. That picture shows
A) a galaxy that is 1 billion years old. B) a galaxy that is 1 billion light years old. C) a galaxy that is 13 billion years old. D) a galaxy as it was 1 billion years ago.
Physics & Space Science
Three resistors,
are connected in series to a 9.0 V battery. What is the power dissipated by 
A. 2.0 W B. 4.0 W C. 5.1 W D. 9.0 W E. 2.3 W
Physics & Space Science
Discuss a theory that explains how the corona is heated
What will be an ideal response?
Physics & Space Science