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Madison

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  • Frequency and speed in a wire?

    If I have a metal string and send a wave of frequency of 100 Hz through, it thus creating a wave speed of 25 m/s. Then I send a second wave of frequency 240 Hz through the string, what is the wave speed of the second wave?

    1 AnswerPhysics8 years ago

  • A stone is thrown at an angle of 30 degrees above the horizontal from the top edge of a cliff...?

    It has an initial speed of 12 m/s. It takes 5.6 seconds for the stone to reach the ground below.

    i) What is the height of the cliff?

    ii) How far from the base of the cliff does the stone hit the ground?

    3 AnswersPhysics9 years ago

  • Physics problem involving a spring and an incline.?

    A 1.5 kg block is released from rest and allowed to slide down a frictionless surface and into a spring.

    The far end of the spring is attached to a wall. The initial height of the block is .56 m above the lowest part of the slide and the spring constant is 480 N/m.

    a) What is the block's speed when it is at a height of .28 m above the base of the slide?

    b) How far is the spring compressed?

    c) The spring send the block back to the left. How high does the block rise?

    1 AnswerPhysics9 years ago