Most popular questions and responses by gomez
  1. physics # 9

    9. A block attached to a spring of negligible mass undergoes simple harmonic motion on a frictionless horizontal surface. The potential energy of the system is zero at the equilibrium position and has a maximum value of 50 J. When the displacement of the

    asked on August 7, 2007
  2. physics # 1

    1. If a particle moves in a plane so that its position is described by the function x = Acosùt, and y = Asinùt, it is a.) moving with varying speed along a circle b.) moving with constant speed along a circle c.) moving with constant acceleration along a

    asked on August 7, 2007
  3. physics # 5

    5. The length of a simple pendulum with a period on Earth of one second is most nearly a.) 0.12 m b.) 0.25 m c.) 0.50 m d.) 1.0 m e.) 10.0 m The formula for the period is P = 2 pi sqrt(L/g) g is the acceleration of gravity, 9.8 m/s^2. Solve for L. (or get

    asked on August 7, 2007
  4. physics # 7

    7. An object falling in air experiences a drag force directly related to the square of the speed such that F = Cv2 (where C is a constant of proportionality). Assuming that the buoyant force due to air is negligible, the terminal velocity of this falling

    asked on August 7, 2007
  5. physics

    hey i have a some questions i am trying to solve for practice, because i have a test coming up. can you guys help me with them? i will post them Yes. Please show your work, however. Physics is best learned through practice, not by watching others solve

    asked on August 7, 2007
  6. physics # 4

    For the following question rank the objects in order from greatest to least. 4. Which object would be the most difficult to begin spinning about its center of mass? a.) Solid sphere b.) Hollow sphere c.) Hallow cylinder d.) Solid disk e.) Solid cylinder

    asked on August 7, 2007
  7. physics # 3

    3. In a perfectly inelastic collision which of the following is conserved, (give the most accurate answer). a.) Linear momentum b.) Kinetic energy c.) Linear momentum d.) Total mechanical energy, (KE +PE) e.) Heat energy

    asked on August 7, 2007
  8. physics # 2

    2. A particle of mass m and speed v collides at right angles with a very massive wall in a perfectly elastic collision. The magnitude of the change of momentum of the particle is a.) zero b.) mv/2 c.) mv d.) ã (2) mv e.) 2mv Hint: the final momentum is

    asked on August 7, 2007
  9. physics - what i think

    1. E 2. A 3. C 4. don't know 5. don't know 6. C 7. don't know 8. don't know 9. don't know #2 is not A

    asked on August 7, 2007
  10. physics # 8

    8. A large explosion is heard by two people. The first is located 10 meters away and the second is located 40 meters away. By which factor is the intensity of the second observer compared to the first? a.) 16 b.) 4 c.) 1/4 d) 1/16 e.) 1/900 Ever heard of

    asked on August 7, 2007
  11. physics # 6

    6. Which object listed below is not accelerating? a.) A person standing on the surface of the Earth. b.) A satellite in geostationary orbit. c.) A jet traveling at Mach 6.7 in a straight line. d.) A child standing on a merry-go-round. e.) A block

    asked on August 7, 2007
  1. math

    An eleveartor starts on the ground floor.it goes up 7 floors and then down 9 floor.what floor is it on

    posted on September 12, 2017