Mercury has a weak magnetic field because of its iron core
a. True
b. False
Indicate whether the statement is true or false
True
Physics & Space Science
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The most massive part of the atom is(are) the ____ which has(have) a ____ charge
a. electrons; negative b. nucleus; negative c. electrons; positive d. nucleus; positive
Physics & Space Science
Why is the primordial background radiation visible in all directions?
What will be an ideal response?
Physics & Space Science
A 2-kg box of taffy candy has 40 J of potential energy relative to the ground. Its height above the ground is
A) 1 m. B) 2 m. C) 3 m. D) 4 m. E) none of the above
Physics & Space Science
The advantage of a convex mirror is that it has a __________ field of view
a. narrow b. linear c. wide d. open
Physics & Space Science