The answer to this would be plastic. The other options are conductors. Remember, metal is a conductor as well as the salt ions in salt water.
If (and only if) by 'streched to a distance of 40cm' you mean that it's 40 cm from irs rest position, then the elastic potential energy can be written
Answer:
F=547.5
Explanation:
To Find the answer you have to remember the Formula for work. Work= Force* distance, because we are not finding work we have to fill in the variables or rearrange the formula to Force= Work/Distance
Work= 16,700
Distance=30.5M
Force=?
So,
16,700=F*30.5
Now you isolate the variable by dividing both sides by 30.5
or
Force=16,700J/30.5M
and you get F=547.5
Answer:
Explanation:
Time can be found by dividing the distance by the speed.
The distance is 45 meters and the speed is 12.5 meters per second.
Divide. Note that the meters, or "m" will cancel each other out.
It will take the dolphin 3.6 seconds to swim a distance of 45 meters are 12.5 meters per second.
Gravitational Force is F=G*m1*m2/r^2