subject
Physics, 29.04.2021 03:00 dval8258

You have just lifted up a 10 lb weight by abducting your arm out to the side at your shoulder. You continue to hold the weight in that position for a few seconds. During this time the length of your muscle remains the same, while the muscle continues to vary the amount of tension or force needed to keep the weight from falling down. What type of contraction is going on while you are holding this weight in this position

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 04:00
Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j
Answers: 2
question
Physics, 22.06.2019 06:10
Which transition by an electron will release the greatest amount of energy? oa ob oc od
Answers: 2
question
Physics, 22.06.2019 07:30
Some material consisting of a collection of microscopic objects is kept at a high temperature. a photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of 0.3 ev, 0.5 ev, 0.8 ev, 2.0ev, 2.5ev, and 2.8ev. these are the only photon energies observed. (a) draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. on the diagram, indicate the transitions corresponding to the emitted photons. explain briefly. (b) would a spring–mass model be a good model for these microscopic objects? why or why not? (c) the material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. what photon energies in this beam of light are observed to be significantly reduced in intensity (“dark absorption lines”)? explain briefly.
Answers: 3
question
Physics, 22.06.2019 08:30
Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.
Answers: 1
You know the right answer?
You have just lifted up a 10 lb weight by abducting your arm out to the side at your shoulder. You c...
Questions