Recent content by jannx3

  1. J

    What is the spring constant for this spring?

    Homework Statement A mass of 50.0 g mass is hung from a spring, spring is elongated to 40 cm, an additional mass of 20g is added, with a new reading of 45cm a) what is the spring constant for this spring? b) another mass of 30g is added to the spring, what is the new reading? Homework...
  2. J

    Time to reach maximum height

    so I am assuming the height of the diver? which is 1m , there's all the information given
  3. J

    Time to reach maximum height

    so when the person is diving from a diving board, it jumps upward before diving downwards into the water
  4. J

    Time to reach maximum height

    Homework Statement find time to reach max height max height is 0.870m mass of diver is 70kg makes an angle when diving of 85 degrees Homework Equations Vf=Vi + gt The Attempt at a Solution Vi=0 Vf=gt t=vf/g = 0.870/9.8 not sure if this the right approach
  5. J

    Coefficient of static friction of a sliding block

    Homework Statement block is placed on a ramp at an angle of 39.4 and height of the ramp is 1.610m and the mass of the block is 8.54kg if coefficient of kinetic friction is 0.111 and the coefficient of static friction is 0.173 what is the speed of the block at the bottom of the ramp. if it...
  6. J

    Calculating velocity of water flow form tap

    Homework Statement A measuring cylinder collects 475 mL of this water in a minute. At the top the diameter of the stream is 0.700 cm. Homework Equations What is the velocity of the stream 20.0 cm below the top? The Attempt at a Solution im not sure which formula to use? i was...
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