Most popular questions and responses by Hadi
  1. Physics

    A loaded elevator with very worn cables has a total mass of 2600 Kg , and the cables can withstand a maximum tension of 2.90×104 N . A) Apply Newton's second law to the elevator and find the maximum upward acceleration for the elevator if the cables are

    asked on November 9, 2006
  2. Physics

    frictionless block of mass 1.65 kg is attached to an ideal spring with force constant 340 N/m . At t=0 the spring is neither stretched nor compressed and the block is moving in the negative direction at a speed of 12.7 m/s . A-Find the amplitude. B-Find

    asked on January 2, 2007
  3. Physics

    A body of unknown mass is attached to an ideal spring with force constant 113 N/m . It is found to vibrate with a frequency of 5.80 Hz . A-Find the period. B-Find the angular frequency. C-Find the mass of the body.

    asked on January 2, 2007
  4. Physics

    If an object on a horizontal frictionless surface is attached to a spring, displaced, and then released, it will oscillate. If it is displaced a distance 0.130 m from its equilibrium position and released with zero initial speed. Then after a time 0.803 s

    asked on January 2, 2007
  5. physics

    Apparent Weight. A physics student weighing 600 N stands on a bathroom scale in an elevator. As the elevator starts moving, the scale reads 420 N . A )Find the magnitude of the acceleration of the elevator. B ) Find the direction of the acceleration of the

    asked on November 14, 2006
  6. Macroeconomics

    Suppose the marginal propensity to consume is 0.75. What does this mean? What do we know about the marginal propensity to save? What do we know about the average propensity to consume? The marginal propensity to consume (MPS) the percent of an additional

    asked on September 20, 2006
  7. geometry

    A square ABCD is inscribed in a circle. The circle is folded to form a semi-sircle, and another square EFGH is inscribed in this semi-cirlcle. Find the ratio of the area of the square EFGH to the area of the square ABCD.

    asked on March 30, 2012
  8. chem

    What is the density of an aqueous solution of potassium nitrate, that has a normal boiling point of 103.0 degrees Celsius, and an osmotic pressure of 122 at 25 degrees Celsius?

    asked on December 14, 2015
  9. Physics

    A toy of mass 0.151 kg is undergoing SHM on the end of a horizontal spring with force constant k = 301 N/m . When the object is a distance 1.23×10^−2 m from its equilibrium position, it is observed to have a speed of 0.297 m/s. A-What is the total

    asked on January 2, 2007
  10. Economics

    Determine whether each of the following, other things held constant, would lead to an increase, a decrease, or no change in long-run aggregate supply: a. An improvement in technology b. A permanent decrease in the size of the capital stock c. An increase

    asked on September 27, 2006
  1. maths


    posted on June 29, 2019
  2. Chemistry

    column of water in the water barometer rose to a height of 33 feet, what would the atmospheric pressure be in mm Hg? mm Hg

    posted on November 29, 2016