Physics, 01.11.2019 02:31, chaosdamax8295

Two manned satellites approach one another at a relative speed of 0.250 m/s, intending to dock. the first has a mass of 4.00×10^{3} kg, and the second a mass of 7.50×10^{3} kg. if the two satellites collide elastically rather than dock, what is their final relative velocity (in m/s)?

Answers: 3

Show answers

Answers

answered: miriam62

Explanation:

Let $u_1\ and\ u_2$ are initial speeds of satellite 1 and 2 and $v_1\ and\ v_2$ are final speeds of satellite 1 and 2 after collision respectively.

It is given that, the relative speed of two manned satellites is 0.25 m/s, $u_2-u_1=0.25\ m/s$

It is mentioned that thy collide elastically rather than dock, the momentum will remain conserved. So,

m_1u_1+m_2u_2=m_1v_1+m_2v_2

In elastic collision, the kinetic energy also remains conserved, so

$\dfrac{1}{2}m_1u_1^2+\dfrac{1}{2}m_2u_2^2=\dfrac{1}{2}m_1v_1^2+\dfrac{1}{2}m_2v_2^2$

For an elastic collision, the velocity of separation is equal to the velocity of approach such that, e = 1

$e=\dfrac{v_1-v_2}{u_2-u_1}$

$1=\dfrac{v_1-v_2}{u_2-u_1}$

v_1-v_2=u_2-u_1

v_1-v_2=0.25 (given )

So, their final relative velocity is 0.25 m/s. Hence, this is the required solution.

answered: Guest

Acetic acid /əˈsiːtɪk/, systematically named ethanoic acid /ˌɛθəˈnoʊɪk/, is a colourless liquid organic compound with the chemical formula ch3cooh (also written as ch3co2h or c2h4o2). when undiluted, it is sometimes called glacial acetic acid. vinegar is no less than 4% acetic acid by volume, making acetic acid the main component of vinegar apart from water. acetic acid has a distinctive sour taste and pungent smell. in addition to household vinegar, it is mainly produced as a precursor to polyvinyl acetate and cellulose acetate. it is classified as a weak acid since it only partially dissociates in solution, but concentrated acetic acid is corrosive and can attack the skin.acetic acidnamespreferred iupac nameacetic acidsystematic iupac nameethanoic acidother namesvinegar (when dilute); hydrogen acetate; methanecarboxylic acid[1][2]identifierscas number64-19-7 3d model (jsmol)interactive image3dmetb00009 reference506007chebichebi: 15366 chemblchembl539 chemspider171 drugbankdb03166 echa infocard100.000.528ec number200-580-7e numbere260 (preservatives)gmelin reference1380iuphar/bps1058keggd00010 meshacetic+acidpubchem cid176rtecs numberaf1225000uniiq40q9n063p un number2789inchiinchi=1s/c2h4o2/c1-2(3)4/h1h3,(h,3,4) key: qtbsbxvteameqo-uhfffaoysa-n smilescc(o)=o

answered: Guest

see earlier

Other questions on the subject: Physics

Physics, 21.06.2019 23:30, 1031kylepoe03

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

Answers: 3

continue

Physics, 21.06.2019 23:30, Longjeremiahs8864

1.in one challenge on the titan games, competitors have to lift 200 pounds up a long ramp. angel is able to move the weight in 42 seconds. anthony gets it done in only 38 seconds. which statement is true? angel has more power than anthony. angel does more work than anthony. anthony does more work than angel. anthony has more power than angel. 2.a mountain climber exerts 41,000 j of work to climb a cliff. how much power does the climber need if she wants to finish in only 500 seconds? power = work / time 20,500,000 watts 82 watts 0.0122 watts 41,500 watts 3.your family is moving to a new apartment. while lifting a box 83 joules of work is done to put the box on a truck, you exert an upward force of 75 n for 3 s. how much power is required to do this? (hint: you only need two of the 3 numbers given! ) power = work / time 249 watts 25 watts 2075 watts 27.7 watts

Answers: 1

continue

Physics, 22.06.2019 09:30, ryanmorse01

The necleus of an atom is made up of what subatomic particles?

Answers: 1

continue

Physics, 22.06.2019 11:00, tdahna0403

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide? kg • what must the total momentum of the system be after the train cars collide? kg •

Answers: 2

continue

Do you know the correct answer?

Two manned satellites approach one another at a relative speed of 0.250 m/s, intending to dock. the...