sammeh

Popular questions and responses by sammeh
  1. physics

    A 1200 kg car moving at 35kph runs into and sticks to a parked 1000kg car. the collision takes 0.15s and after the crash the car's wheels lock and they skid to a stop on the mu= 0.40 road. the final speed of both cars is 5.3m/s a) find the distance

    asked on November 26, 2009
  2. physics

    need help with this question please a 1kg block starts at rest and slides down the incline. the coefficient of friction between the incline and the block is 0.1. The height of the incline is 2m, and the angle is 30 degrees. use energy consideration to find

    asked on November 15, 2009
  3. physics

    find the force and the force direction of a 2x10^-6 C charge that is 3m west of a +5x10^-6 C charge (0.01 N west)

    asked on November 27, 2009
  4. physics

    two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)

    asked on November 14, 2009
  5. physics

    A diver jumps from a height of 24.0m into a swimming pool. What's her speed when she enters the water? (21.7m/s) if the diver stops after sinking 3m into the water, what's the acceleration in the water? (78.4m/s^2)

    asked on November 14, 2009
  6. physics

    find the force and force direction of a 1.0x10^-6 C charge that is 2cm North and 3cm East of a 2x10^-6 C charge

    asked on November 27, 2009
  7. physics

    two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)

    asked on November 14, 2009
  8. physics

    two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)

    asked on November 14, 2009
  9. physics

    find the electric field and direction 0.100 micrometer west of an electron (144000 N/C East) im not sure if im converting it right.. 0.100 micrometer= 1x10^-6 m

    asked on December 3, 2009
  10. physics

    a person pushes a 10kg mass at a constant speed across a u=0.150, 8.50m long floor at a constant speed how much work does the person do? (125J) how much work does friction do? ( -125J)

    asked on November 16, 2009
  11. physics

    A mass m is thrown horizontally at 5.00 m/s off a 20.0m high cliff. find its speed at impact a)using projectile analysis (20.4m/s) b) using energy analysis

    asked on November 26, 2009
  1. physics

    I cannot get 5.6m/s this is what i did. finalKE = initial PE - Ff*d (1/2)mv^2 = 9.8 - (.8487 x 4) v= 3.5

    posted on November 15, 2009
  2. physics

    how do you find the distance? is it 2/sin30?

    posted on November 15, 2009
  3. science

    P=mv = 400kg x 40m/s

    posted on November 14, 2009
  4. physics

    thanks so much!

    posted on November 14, 2009