Answer:
120 mA
Explanation:
The relationship between voltage, current and resistance in a circuit is given by Ohm's law

where
I is the current
V is the voltage
R is the resistance
In this problem, we have an initial current of
I = 60 mA
Then the voltage is doubled:
V' = 2 V
while the resistance is kept the same:
R' = R
So the new current is

so, the current has doubled. Since I = 60 mA, the new current is

B. the mass of the building attracts you upward slightly
Answer:
v=0.04m/s
Explanation:
To solve this problem we have to take into account the expression

where v and r are the magnitudes of the velocity and position vectors.
By calculating the magnitude of r and replacing w=0.02rad/s in the formula we have that

the maximum relative velocity is 0.04m/s
hope this helps!!