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A cord passes over a weightless and frictionless pulley masses of 200 and 300 gramd are attached to the ends of the cord find the distence the masses will move during the fifth second after they had?
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∙ 12y ago
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∙ 12y ago
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Why is friction not necessary?
During solving the questions (In Physics) sometimes we consider the bodies frictionless but friction exists. : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : sorry mom calling(:P)
What holds chromtids togrther and to the spindle fibers?
Centromere. It holds the chromatids together and the spindles are attached to it during cell division.
How many cc's of air does the adult bvm hold?
The oxygen reservoir bag that is attached to an adult bvm typically holds up to 2600 ml or cc's of air. The bag part on it's own can hold around 1475 mls. The "bag" section only delivers the air during ventilatons. It is either attached directly to an oxygen source, be it a tank or wall outlet with out a reservoir bag or there is a reservoir bag attached, that fills up with oxygen from a source. With out an oxygen source or the reservoir bag attached it only delivers "room air". T.Langley-Smith Paramedic
A body slides down a frictionless plane and during the third second after starting from rest it travels 19.4m what is the angle of inclination of the plane?
x is distance a is acceleration x = 1/2at2 19.4 = 1/2a32 a = 4.311 m/s2 The acceleration of gravity on the Earth is 9.81 m/s2 If the plane is not inclined then the acceleration is 0%. If the plane is inclined by 90' then the acceleration is 100%. Clearly the applicable trigonometric function is sine. 4.311 = 9.81 sin(angle) angle = 26.069'
Where would you be weightless?
Free fall is when the only forces acting upon an object is gravity. (There is no air resistance.) Weightlessness is when there is no gravity acting upon an object. (Weight is a measurement gravity.)
When does weightless occur?
During free fall.
Are the gases that humans exhale during respiration weightless?
yes
During the swing of a frictionless pendulum what energy forms remain constant?
The sum of potential + kinetic energy.
Are astronauts weightless in a space shuttle during the launch?
No, quite the opposite. They experience up to three times the normal force of gravity during the launch.
Why is friction not necessary?
During solving the questions (In Physics) sometimes we consider the bodies frictionless but friction exists. : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : sorry mom calling(:P)
Are the sun and moon any closer during an eclipse?
Yes. Due to orbit the sun and moon will have no exact distence measurment. when the sun covers the moon or the moon covers the sun they are in deed closer to each other
What molecules attached to the tRNAs?
During translation, an amino acid specific to the t-RNA molecule is attached to it.
Was John Glenn the first US person to be weightless?
No, it is possible that earlier pilots experienced weightlessness during parabolic arcs. The first American into space was Alan Shepard.
For what did the astronauts use silly putty?
Silly putty was used by astronauts to fasten down tools during the weightless gravity period and to alleviate boredom.
Where is messenger RNA attached during protein construction?
protein :)
A lead is attached to the patients skin during electrocardiography?
true
What is an area where the chromosome are attached?
The chromosomes are attached at their centromeres, which in turn attach to spindle fibers when being pulled apart during mitosis.
