Physics, 26.06.2020 20:01 webbhlharryteach

I raised a 20 kg rock 1.5 m off the ground. I am just holding it now. Nothing is moving (except for the muscles in my back and arms that are twitching like crazy--doing work--but that's internal energy/work). So how much mechanical work am I doing now

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 20:00, jonathanvega424

What statements accurately describe atoms

Answers: 1

continue

Physics, 22.06.2019 05:30, justin5647

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

Answers: 2

continue

Physics, 22.06.2019 12:00, SmokeyRN

In which of the following would the particles move most rapidly? a. ice at -20 °c b. water at 20 °c c. steam at 110 °c d. boiling water e. ice at 0 °c

Answers: 1

continue

Physics, 22.06.2019 13:10, pearlvldz

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)

Answers: 2

continue

You know the right answer?

I raised a 20 kg rock 1.5 m off the ground. I am just holding it now. Nothing is moving (except for...