Questions Asked on
December 25, 2009

  1. PHYSICS

    Q.1.A spring of force constant'k'is cut into two parts whoose lengths are in the ratio 1:2.The parts are now connected in paralle and a block of mass'm'is suspended at the end of the combined spring.Find the period of oscillation performed by the block.

    asked by CHIKIRSHU
  2. English

    Is it correct to say that the clock crashed on the roof of the car and bounced on the windscreen?

    asked by Mike
  3. PHYSICS

    A closed circular wire hung on a nail in awall undergoes small oscillations 2 degree & the time period 2sec.Find (a) the radius of the circular wire (b)the speed of the particle farthest away from the point of suspension as it goes through the mean

    asked by CHIKIRSHU
  4. MATH GRADE 10****

    Scott, Arif, and Diane run a small delivery company. For thier business, they use licensed two-way radios with a 20 km range. Scott is at their office which they have marked as the origin on their map of the town. Arif is dropping off a package at (-8, 16)

    asked by alyssa
  5. physics

    Q.1.Find the total mechanical energy in one time period? my sir says that it is (1/2)mw^2A^2 but according to me it should be 1/4mw^2A^2.How? Q.2.The total mechnical energy of a spring mass system in SHM is E = (1/2)mw^2A^2.Suppose the oscillating particle

    asked by anonymous
  6. 10th grade

    An unsaturated solution is made by completely dissolving 20.0 grams of NaNO3 in 100.0 grams of water at 20.0°C. (the gram formula mass=85.0 grams per mole) Determine the minimum mass of NaNO3 that must be added to this unsaturated solution to make a

    asked by R
  7. Algebra

    define the following new variables X to A =W X to B =X Y to A =Y Y to B =Z w+x=32 y+z=8 w+y=22 x+z=18 You helped me solve for y Ijust added w+y=32 220w+300(32-w)+400(22-w)+180(8-y)=9280 , w+y=22 The answer I got was y=32 I solved for x and got x=42 I don't

    asked by mike
  8. English

    i need this body paragraph edited please Various people believe that the building of an empire provides secure natural resources due to taking over territories owned by other countries. This ultra-nationalism can actually create a war due to an attempt of

    asked by jake
  9. sociology

    history of urbanization in zinder can you help me with findo some history of urbanization in zinder? thank you

    asked by scooby9132002
  10. Merry Christmas

    I want to wish everyone on this site a very merry christmas and a happy new year. I'd also like to thank every jiskha teacher and student that take their time to help others. Thank you Ms. Sue for all the help you've given me throughout the past.

    asked by Sara
  11. earth Science

    When a river is lengthened due to forward erosion, a _____ has occurred.

    asked by brian
  12. physics

    A 0.145 kg baseball is pitched at 42 m/s. The batter hits it horizontally to the pitcher at 58 m/s. GIVEN: m = 0.145 kg v = 42 m/s batter v = 58 m/s a. Find the change in momentum of the ball. p = mv p = (0.145)(42) p = 6.09 --> What velocity would I use?

    asked by Heart
  13. physics

    A 0.200 kg plastic ball moves with a velocity of 0.30 m/s. It collides with a second plastic ball of mass 0.100 kg, which is moving along the same line at a speed of 0.10 m/s. After the collision, both balls continue moving in the same, original direction.

    asked by Heart
  14. Physics

    What is the net force acting on the ring in the diagram?

    asked by Priscilla
  15. Physics

    A race car can be slowed with a constant acceleration of -11 m/s^2 a. If the car is going 55 m/s, how many meters will it travel before it stops? b. How many meters will it take to stop a car going twice as fast?

    asked by Priscilla
  16. Physics

    How far does a plane fly in 15 s while its velocity is changing from 145 m/s to 75 m/s at a uniform rate of acceleration?

    asked by Priscilla
  17. Physics

    A stone that starts at rest is in free fall for 8.0 s. a.Calculate the stone's velocity after 8.0 s. b. What is the stone's displacement during this time? Given: t = 8.0 s a = 9.81 m/s^2 For a, in order to calculate the velocity, should i use d = vit + 1/2

    asked by Priscilla
  18. Physics

    A negative charge -Q is placed inside the cavity of a hollow metal solid. The outside of the solid is grounded. Q: Is there any excess charge induced on the inner surface of the piece of metal? A: Yes, +Q Q: Is there any excess charge on the outer surface

    asked by Sean
  19. physics =)

    A 0.200 kg plastic ball moves with a velocity of 0.30 m/s. It collides with a second plastic ball of mass 0.100 kg, which is moving along the same line at a speed of 0.10 m/s. After the collision, both balls continue moving in the same, original direction.

    asked by Heart
  20. PHYSICS

    Q.1.A pendulum clock keeping correct time is taken to high altitudes,its length should be decreased to keep correct time.Why? Q.2.A simple pendulum has a hollow bob filled with a liquid of density d.If the liquid drains out of a small hole in the bottom of

    asked by CHIKIRSHU
  21. American Government

    I've read my book and still can't find the answer to this question. I need an explanation so I can study for my midterm coming up. Help please? Describe two ways the federal bureaucracy helps to shape laws passed by Congress.

    asked by Karen