Physics - November 2006

2006-11-22 23:07:56 · 6 answers · asked by Anonymous

2006-11-22 22:14:34 · 13 answers · asked by kamspillai 1

2006-11-22 21:31:33 · 10 answers · asked by paulinem_pink 2

Labatory conditions; Apparatus, A peice of cord about 2m in length, a fixed pivot point,a symetrical pendulum bob, a measure tape and stop watch. measure the cord ar 5 different lengths and swing pendulum through a small arc of 10 degrees for 10 oscillations, repeat twice for average time and plot findings. CONLUSION this is the bit i need help with! outline the reasons why this method only gives an approximate value, no matter how ACCURATELY the experiment is performed.

2006-11-22 21:08:43 · 9 answers · asked by Anonymous

A college student decides to try bungee jumping. He attaches an elastic bungee cord to his ankles and jumps off a tall bridge across a river. He ends up barely touching the water before the cord jerks him back up.

Which assumptions are reasonable to make in this problem?

A. The student can be treated as a particle moving with constant speed.

B. The student can be treated as a particle moving with constant acceleration.

C. The student cannot be treated as a particle.

D. The air resistance is substantial.

E. The air resistance is negligible.

F. The amount of heat generated in the bungee cord is substantial.

G. The amount of heat generated in the bungee cord is negligible.

I. The bungee cord applies a constant (or zero) force on the student.

J. The bungee cord can be modeled as a spring that obeys Hooke's law.

And it can be multiple assumptions...thanks for the help as I can't seem to be getting a right answer.

2006-11-22 19:24:15 · 7 answers · asked by Kris 1

You can not hold a needle at 100 degree C, but you can put your finger easily at say 10 kg water at 40 degree C, though the later is having more heat energy. We know that steam at 100 degree C has more burning effect than water at 100 degree C, because it is having more energy (537 calorie/gm). How can you justify this phenomenon?

2006-11-22 19:17:52 · 7 answers · asked by badalde66 1

I understand photon can't be at rest and experementally its value can't be found but theoritically speaking photon is a particle and rest mass is a form of energy called rest mass energy and energy possesed by photon is hv(new) so what will be its rest mass

2006-11-22 18:53:38 · 8 answers · asked by Chan V 1

What is Newtons concept of escape velocity?

2006-11-22 18:44:26 · 8 answers · asked by Brenda M 1

The term g force expreses an astronauts apparent weight divided by the true weight ( that is the weight of the person on earth ).

2006-11-22 18:14:15 · 5 answers · asked by Brenda M 1

2006-11-22 18:13:40 · 17 answers · asked by Anonymous

I really need a specific answer

2006-11-22 17:57:17 · 12 answers · asked by Brenda M 1

2006-11-22 17:52:44 · 10 answers · asked by avalentin911 2

Car door, door knob, clothes...etc
How come I always get shock by static electricity when no one else near me got shock?

2006-11-22 17:47:50 · 5 answers · asked by LifeisGoood 2

2006-11-22 17:45:21 · 7 answers · asked by Anonymous

What is a T Wave?

2006-11-22 17:39:17 · 1 answers · asked by Gordito 1

Please be sure to mention the type of wave in which these regions occur.

2006-11-22 17:38:25 · 2 answers · asked by Gordito 1

Please use just one word, Complete sentence is not required

2006-11-22 17:36:25 · 4 answers · asked by Gordito 1

ive tried to follow one and i dont think i ever got to the end so im not sure have you heard of anyone finding it is it real gold?

2006-11-22 17:24:21 · 8 answers · asked by chebyyy 1

2006-11-22 17:05:43 · 3 answers · asked by archit p 1

A 2.1*10^-4 kg spider is suspended from a thin strand of spider web. the greatest tension the strand can withstand without breaking is 2.0*10^-3 N. What is the maximum acceleration with which the spider can safely climb up the strand?

ps- the "^" means power of :)

thx for your help guyz

2006-11-22 16:54:24 · 3 answers · asked by navratna s 1

Please explain or provide links/references.

2006-11-22 16:38:21 · 7 answers · asked by the great human 1

An aluminum rod is 20.0 cm long at 20°C and has a mass of 350 g. If 14500 J of energy is added to the rod by heat, what is the change in length of the rod?

2006-11-22 16:36:01 · 2 answers · asked by lol 1

A particular engine has a power output of 6.00 kW and an efficiency of 25.0%. Assume the engine expels 8500 J of energy in each cycle.
(a) Find the energy absorbed in each cycle.
(b) Find the time required to complete each cycle.

2006-11-22 16:35:04 · 2 answers · asked by lol 1

Explain the relationship between consciousness, time and energy.

Serious answers only please.

2006-11-22 16:32:03 · 6 answers · asked by Anonymous

Is it something to do with the weight of an astronaunt?

2006-11-22 16:23:14 · 9 answers · asked by Brenda M 1

2006-11-22 16:08:16 · 7 answers · asked by archi86 1

i am doing a powerpoint project on conservation of linear momentum. Would you happend to know anything on it but what is more important for me is sources to help me. thanks

2006-11-22 15:17:13 · 4 answers · asked by avalentin911 2

2006-11-22 14:20:35 · 7 answers · asked by Parth 1

the combination of an applied force and friction force produces a constant total torque of 36.0 N.m on a wheel rotating about a fixed axis .the applied force acts for 6.00s.during this time the angular speed of the wheel increases from 0 to 10.0 rad/sec.the applie force is then removed,and the wheel comes to rest in 60.0 sec.
a)find the moment of intertiA OF THE WHEEL.
b)find the magnitude of the frictinal torque.
c)find the total number of revolutions of the wheel.

2006-11-22 13:54:53 · 2 answers · asked by reem h 2

Autodynamic Theory of the Universe.

2006-11-22 13:18:44 · 1 answers · asked by goring 6