Physics - March 2007

a left hand cable has a tention (T1) and makes an angle of 52 degrees with the horizontal. the right hand cable has a tention (T3) and makes an angle of 43 degrees with the horizontal. A weight (W1) is on the left and a weight (W2) is on the right. The cable connecting the two weights has a tenstion of 67N and is horizontal. acceleration of gravity is 9.8 m/s/s.

2007-03-01 03:26:34 · 1 answers · asked by Anonymous

i want to measure the speed of my ball,so how do i get to know show me some experiment

2007-03-01 03:26:21 · 3 answers · asked by road t 1

2007-03-01 03:02:10 · 5 answers · asked by Anonymous

in which year is electricity discovered

2007-03-01 02:56:05 · 5 answers · asked by bulb 1

A 60-kg sky diver falls from rest from a height of 2400m above ground. By the time she has fallen the first 1000m, she has reached a constant speed of 60 m/s. (a) How much work has been done by the force of air resistance during the first 1000m? (b) How much work does this force do during the next 800m of fall?

2007-03-01 02:38:19 · 2 answers · asked by Anonymous

A 2-liter pitcher of lemonade has been sitting on the picnic table in the sun all day at 33 degrees Celsius. You pour 0.24 kg into a Styrofoam cup and add six ice cubes (each 25 grams at the melting point). Assuming no heat is lost to the surroundings, what is the final temperature and compostition of the mixture in the cup? Assume specific heat for lemonade is the same as water

2007-03-01 02:33:31 · 3 answers · asked by roxybecky03 2

can u plz tell me electric strength and eletric potential inside sphere

2007-03-01 02:31:23 · 2 answers · asked by ghulamalimurtaza 3

2007-03-01 02:26:47 · 25 answers · asked by Anonymous

2007-03-01 02:25:27 · 1 answers · asked by raul 1

2007-03-01 02:24:27 · 5 answers · asked by Jessica W 1

2007-03-01 02:23:25 · 3 answers · asked by Jessica W 1

2007-03-01 02:22:23 · 4 answers · asked by Jessica W 1

Physics

2007-03-01 01:49:16 · 9 answers · asked by FC 1

2007-03-01 01:47:25 · 4 answers · asked by Anonymous

If you are given many closed sacks filled with different amounts of identical marbles, how could you determine the weight of a single marble without opening the sacks? (Assume the weight of the sack material can be ignored.)

2007-03-01 01:37:46 · 2 answers · asked by Anonymous

two bones of equal radius are subjected to equal twisting torques. if one is longer than the other, which will fracture first? explain.

2007-03-01 01:30:05 · 2 answers · asked by AngeL_05 1

2007-03-01 01:19:19 · 1 answers · asked by AngeL_05 1

the deformation of an elastic body is described by strain instead of stress. why?

2007-03-01 01:14:49 · 2 answers · asked by AngeL_05 1

2007-03-01 01:05:01 · 4 answers · asked by Anonymous

2007-03-01 01:04:11 · 3 answers · asked by Anonymous

then what direction does the magnetic field wave oscillate?

2007-03-01 01:02:32 · 2 answers · asked by Anonymous

A 6 kilogram block free to move on a horizontal, frictionless surface is attached to a spring. The spring is compressed 0.15 meters from equilibrium and released. The speed of the block is 1.76 meters per second when it passes the equilibrium position of the spring. The same experiment is now repeated with the frictionless surface replaced by a surface with coefficient of friction 0.34. The acceleration of gravity is 9.8 meters per second squared. How can you find the velocity (speed) at the equilibrium position?

2007-03-01 01:02:01 · 2 answers · asked by Tonya G 2

2007-03-01 01:01:27 · 3 answers · asked by Anonymous

How does static electricity differ from the domestic source. Why can birds sit on a 330,000v power line then fly to earth without carrying the fatal charge. If this was a static source would the charge stay with the bird until it flew to ground ?

2007-03-01 00:57:57 · 1 answers · asked by Anonymous

The two beads are identical. Assume the mass is m and charge is q for both beads. The walls of the bowl are assumed frictionless and non-conducting. The beads repel each other and move up the walls to become distance R apart at equilibrium. What is the charge on each bead?

2007-03-01 00:54:12 · 2 answers · asked by metalluka 3