--%>
Assignment Help - homework help

State Hooke's law as it applies to a spring

a 6.00 kg mass is situated at (-1.00, 3.00) meters, what is its mass moment of inertia: a)about the x-axis b)about the y-axis c)About a line defined by x=6.00 m
The same object is hung from identical wires made of aluminum, cast iron, copper, and steel. rank the order in which the wires will stretch from least to greatest. 
A girl with a mass of 47 kg sits on one end of a seesaw that is 3.0m long and is pivoted 1.3 m from the girl. if the seesaw is just balanced when a boy sits at the opposite end, what is his weight?
A flywheel slows down uniformly and comes to rest in 22.0 seconds. it was rotating initally at 4 revolutions per second and has a di diameter of 50.0 cm. a) what was the centripetal acceleration when it was rotating initially? B) What was the tangential acceleration?
What is the net torque on a solid wheel with a mass of 1 kg and diameter of 1 m if it has an angular acceleration of 5.0 rad/s/s?
A mass of 100.0 kg is suspended from a steel wire of diameter 1.5 mm and length of 12.0 m. a) What will be the new length of the steel wire? b) If the diameter of the wire is doubled, what would be the stretch?
The drain plug on a cars engine has been tightened to a torque of 25 N*m. If an 8 inch long wrench is used to change the oil, what is the minimum force needed to loosen the plug. 
Three masses are positioned as follows: 3.0kg at (3,2), 4.0 kg at (0,-1), and 5.0 kg at (5, -7). Locate the center of mass of the system.
State Hooke's law as it applies to a spring. 
A 2.00 m long rod is hinged at one end. the rod is initially held in the horizontal position and then released as the free end is allowed to fall. calculate the angular acceleration of the rod as it is released. 
Compare the mass moments of inertia of the three planets shown blew. show your calculations properly.underneath is a picture of three circles. circle a has a mass of M and a radius of R. Circle B has a mass of 2M and a radius of 2R. Circle C has a mass of 3M and a radius of 3R.  

   Related Questions in Physics

  • Q : Define Sievert or SI unit of dose

    Sievert: Sv: The derived SI unit of dose equivalent, stated as the absorbed dose of the ionizing radiation multiplied by internationally-agreed-upon dimensionless weights, as various kinds of ionizing radiation cause various kinds of damage in the liv

    		•
  • Q : Explain Stefan-Boltzmann law

    Stefan-Boltzmann law (Stefan, L. Boltzmann): The radiated power P (that is the rate of emission of electromagnetic energy) of a hot body is proportional to the radiating surface area, A, and the 4th power of the thermodynamic temperature, T. The const

    		•
  • Q : What nucleons altogether in a nucleus

    Explain what does held the nucleons altogether in a nucleus?

    		•
  • Q : Explain Davisson-Germer experiment

    Davisson-Germer experiment (C.J. Davisson, L.H. Germer; 1927): The experiment which conclusively proved the wave nature of electrons; diffraction patterns were examined by an electron beam penetrating into the nickel target.

    		•
  • Q : Polarization In a non-polar - molecule,

    In a non-polar - molecule, the centre of the nuclei and electron orbit overlap when such a molecule is positioned in electric field, the electrons are attracted with the positive charged of the anode and repelled by the negative charges of the cathode. Because of grea

    		•
  • Q : What is Maxwells demon Maxwell's demon

    Maxwell's demon (J.C. Maxwell): A contemplation experiment describing the concepts of entropy. We contain a container of gas that is partitioned into two equivalent sides; each side is in thermal equilibrium with the other. The walls and the separatio

    		•
  • Q : What is Lawson criterion Lawson

    Lawson criterion (J.D. Lawson): This is the condition for the discharge of energy from a thermonuclear reactor. This is usually stated as the minimum value for the product of the density of the fuel particles and the energy imprisonme

    		•
  • Q : Define Parsec Parsec : The unit of

    Parsec: The unit of distance stated as the distance pointed by an Earth-orbit parallax of 1 arcsec. It equals around 206 264 au, or about 3.086 x 1016 m

    		•
  • Q : Non-Parametric Tests Activity

    Activity 9:   Non-Parametric Tests    4Non-Parametric Tests While you have learned a number of parametric statistical techniques, you are also aware that if the assumptions related to

    		•
  • Q : Define Lumen or SI unit of luminous flux

    Lumen: lm: The derived SI unit of luminous flux, stated as the luminous flux produced by a uniform point source of 1 cd releasing its luminous energy over a solid angle of 1 sr; it therefore has units of cd sr.

    		•