Answer:
31.25
Explanation:
The formula for the potential energy of a spring is , where x is the distance in meters the spring is stretched. Plugging in the numbers that you are given, you get
. Hope this helps!
In which of the following situations does gravity supply a centripetal force?
1 answer:
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Answer:
The average current that this cell phone draws when turned on is 0.451 A.
Explanation:
Given;
voltage of the phone, V = 3.7 V
electrical energy of the phone battery, E = 3.15 x 10⁴ J
duration of battery energy, t = 5.25 h
The power the cell phone draws when turned on, is the rate of energy consumption, and this is calculated as follows;
where;
P is power in watts
E is energy in Joules
t is time in seconds
The average current that this cell phone draws when turned on:
P = IV
Therefore, the average current that this cell phone draws when turned on is 0.451 A.