An ideal transformer consists of a 500-turn primary coil and a 2000-turn secondary coil. If the current in the secondary is 3.0 A, what is the current in the primary?
A) 0.75 A B) 1.3 A C) 12 A D) 48 A E) 24 A
C
Physics & Space Science
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The position of an object is given by where and x and t are in SI units. What is the instantaneous acceleration of the object when
A) -13 m/s2 B) 2.9 m/s2 C) 4.6 m/s2 D) 13 m/s2
Physics & Space Science
Work is a vector quantity
Indicate whether the statement is true or false
Physics & Space Science
Other things being equal, the pole-vaulter having the greatest ________ energy prior to going into the jump should jump the highest.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science
When an object floats in a liquid, the buoyant force is __________ the weight of the liquid displaced by the object
Fill in the blank(s) with correct word
Physics & Space Science