at 2.5 seconds, the helicopter has a kinetic energy of 20 j. what is the mechanical energy at that time?

  Mechanical energy is the sum of kinetic and potential energy in an object.

We are given that At 2.5 seconds, the helicopter has a kinetic energy of 20 J, Also we know that Energy per time is called the power and is the rate of energy, therefore in order to find the mechanical energy at that time, we will simply divide the values, thus:

Mechanical energy is given as:

Explanation:

c (diamond),

sio2 (quartz)

answer: i have one answer

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

hope this and sorry i could only come up with one answer!