Popular questions and responses by Happinessdelight

    Find the gauge pressure in pascals in a soap bubble 0.04 m in diameter. The surface tension is 25.0 x 10^4 Pa.

    asked on June 3, 2017
  2. Physics

    A wheel mounted on a stationary axle starts at rest and is given the following angular acceleration: 9-12t where t is the time after the wheel begins to rotate. Find the number of revolutions that the wheel turns before it stops ( and begins to turn in the

    asked on March 27, 2017

    The piston of hydraulic automobile lift is 0.30 m in diameter. Calculate the gauge pressure required to lift a car with a mass 1000 kg in, A) Pascals B) Atm

    asked on June 3, 2017

    At a certain point in a pipeline the water's speed is 4.00 m/s and the gauge pressure is 5.00 x 10^4 Pa. Find the gauge pressure at a second point in the line, 12.0 m lower than the first, if the cross-section area at the second point is twice that at the

    asked on June 3, 2017

    An ore sample weighs 15.00 N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 9.00 N. Find the total volume and the density of the sample.

    asked on June 3, 2017

    A 5 kg block rests on a frictionless horizontal surface. A cord attached to the block passes over the pulley whose diameter is 0.120 m to the hanging block of mass 5 kg. The system is released from rest and the blocks are observed to move 3m in 2.0 s. A.

    asked on May 17, 2017

    A string is wrapped around the rim of a flywheel 0.400 m in radius, and a steady pull of 50.0 N is exerted on the cord. The wheel is mounted in frictionless bearings on a horizontal shaft through it's center. The moment of inertia of the wheel is 4.00

    asked on May 17, 2017
  8. Physics

    3 particles of masses m1 = 1.5 kg , m2 = 2.5 kg and m3 = 3.5 kg form an equilateral triangle of edge length l= 135 cm. Determine the center of mass of the system.

    asked on March 28, 2017
  9. Physics

    Max has a mass of 65 kg and sits in a canoe that has a mass of 55 kg. He jumps with a horizontal velocity of 2m/s towards the shore. What is the velocity of the canoe?

    asked on March 27, 2017
  10. Physics

    A 0.250 kg ball swung on a 1.3 m string in a vertical circle. If it's tangential speed at the bottom of the path is 4.2 m/s, what is the maximum speed the ball can have at the top and still move in a circle?

    asked on March 27, 2017
  11. Math

    For the equation 3^x - 3^-x = 1 solve for x by writing your final answer in logarithmic form.

    asked on March 27, 2017
  12. Math

    A rocket is launched vertically into the air and is observed from a tower that is 1.5 km above the ground level. Soon after the launch the rocket is at an angle of 25 degrees. Later the rocket has climbed vertically a further 4 km and its angle of

    asked on March 27, 2017