Recent content by MissJewels

  1. M

    Using 5 point charges, finding the charge of q1 and q2 using given force

    Homework Statement The figure shows five point charges placed on a line, at intervals of 1 cm. For what values of q1 and q2resultant electrical force exerted on each of the three charges is zero? Homework Equations I imagine the law of coulomb is used here, however, I'm not sure how I'm...
  2. M

    Tension in a single rope holding a block, no motion.

    i figure the tension would be the same as the gravitational force, which is 19,6N, right?
  3. M

    Tension in a single rope holding a block, no motion.

    So, seeing as the string is being pulled by a horizontal force, there's an angle at play. I imagine i should calculate the tension or force but I don't know what equations to use
  4. M

    Tension in a single rope holding a block, no motion.

    1. So this is a very basic question on tension, i assume, however every example provided in my book shows the tension within two cords. I can't seem to grasp the correct way to do this... Homework Statement A 2 kg block is suspended from a single rope. A horizontal force keeps the cord at...
  5. M

    How Fast Must a Baseball Travel to Clear a 29m Obstacle?

    Sorry it took a while, here's what I did... something's off... just part a)
  6. M

    Centripetal acceleration of an orbit to the earth help

    Nvm, I got it, thanks again !
  7. M

    Centripetal acceleration of an orbit to the earth help

    OOOOH so i add the radius with the altitude, and THATS the r value i use! Right? THANKS
  8. M

    Centripetal acceleration of an orbit to the earth help

    ahaha... isn't altitude the radius?
  9. M

    Centripetal acceleration of an orbit to the earth help

    Homework Statement A geostationary satellite goes around the Earth in 24hr. Thus, it appears motionless in the sky and is a valuable component for telecommunications, including digital television. If such a satellite is in orbit around the Earth at an altitude of 35 800 km above the Earth's...
  10. M

    Car curves at a radius of 50m while travelling at 100km/hr

    I'm doing the d right now... found that r= 0,015m w = 0,349 rad/s and used the equation: ac=r*ω2 and got ac= 0,0018 then divided it by 9,8... and got 1,84 x10^-4g... when the right answer should just be 1,87g HELP?
  11. M

    Car curves at a radius of 50m while travelling at 100km/hr

    I got it, thanks!
  12. M

    Car curves at a radius of 50m while travelling at 100km/hr

    That's awesome, thanks! I got a, b, and c, but I am stuck on d ... given its diameter, where do i go from there?
  13. M

    Car curves at a radius of 50m while travelling at 100km/hr

    Homework Statement Calculate the centripetal acceleration module in the following cases as a multiple of g = 9.8 m / s ^ 2. a) a car traveling at 100km / h on a curve of radius 50m. b) a jet plane flying at 1,500 km / h and making a turning radius of 5km. c) a stone that is rotated every...
  14. M

    How Fast Must a Baseball Travel to Clear a 29m Obstacle?

    Homework Statement A baseball is hit at a height of 1m with an initial speed of vo module at an angle of projection of 35o from the horizontal. She spent just over an obstacle of 29m high at a horizontal distance of 64m. Find a) vo b) the time it takes to reach the OBSTACLES c) its speed...
  15. M

    Electrons: Position, Exit Angle, 2 cm Length Plates

    I still don't understand the 2 cm long plates buisiness though... can't seenm to picture what it looks like?