--%>
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 : Explain Thomson experiment or Kelvin

    Thomson experiment: Kelvin effect (Sir W. Thomson [later Lord Kelvin]): Whenever an electric current flows via a conductor whose ends are maintained at various temperatures, heat is discharged at a rate just about proportional to the

    		•
  • Q : Definition of Pascals principle Briefly

    Briefly state the definition of Pascal’s principle?

    		•
  • Q : Define Hoop conjecture Hoop conjecture

    Hoop conjecture (K.S. Thorne, 1972): The conjecture (as so far unproven, although there is substantial proof to support it) that a non-spherical object, non-spherically compressed, will only form a black hole whenever all parts of the

    		•
  • Q : Describe Solar water heating Solar

    Solar water heating: Solar water heaters are simple, reliable, famous and widespread. They are probably the Low Carbon technology closest to being commercially practised. The most efficient designs concentrate solar radiation onto a small diameter tub

    		•
  • Q : Current through resistors How do I find

    How do I find out a maximum current flowing through a resistor with just the resistance of the resistor and it's power rating?

    		•
  • Q : Brownian motion Brownian motion   - The

    Brownian motion  - The continuous random motion of a solid microscopic particle whenever suspended in a fluid medium due to the effect of ongoing bombardment by molecules and atoms.  

    		•
  • Q : What is Kirchhoffs law of radiation

    Kirchhoff's law of radiation (G.R. Kirchhoff): The emissivity of a body is equivalent to its absorbptance at similar temperature.

    		•
  • Q : Calculate the intensity I along y axis

    As shown in the figure below, a source at S is sending out a spherical wave: E1=(A×D/r) cos(wt-2πr/λ); where r is the distance to source

    		•
  • Q : Difference between the electron and a

    Write down the vital difference between the electron and a beta ray?

    		•
  • Q : Define Le Chateliers principle Le

    Le Chatelier's principle (H. Le Chatelier; 1888): When a system is in equilibrium, then any modification imposed on the system tends to shift the equilibrium state to decrease the consequence of that applied change.

    		•