Physics - February 2007

2007-02-22 04:26:10 · 5 answers · asked by locodelbarrio 1

base your answer on the fact that the object did not fit in the graduated cylinder. assume you only have a seperate beaker or jar large enough to entirely contain the object.

2007-02-22 03:34:39 · 5 answers · asked by Anonymous

suppose you have an object that is a rectangular cylinder. it has a base area of 6cmsquare and a height of 8cm.

2007-02-22 03:30:11 · 4 answers · asked by Anonymous

suppose you have an object that is a rectangular cylinder. it has a base area of 6cmsquare and a height of 8cm.

2007-02-22 03:27:39 · 2 answers · asked by Anonymous

A small air bubble separated from the the bottom of the pool
filled with water, and reached the surface in T = 5s later.
The depth of the pool is d = 1m. Estimate how much time τ
did it take for the bubble to acclerate to the speed v= 1cm/s.

I am confused. I tried to apply the formula from the textbook
a = d/2T² , and then τ = v/a = 2vT²/d and get = 50 ms, but
it's nowhere near the answer, not even close. Please help.

2007-02-22 03:27:00 · 2 answers · asked by Alexander 6

That we're all capable of being turned into energy, and since every joule of energy is essentially interchangable, that we're all basically the same thing?

*Gong*

Think about it.

2007-02-22 03:25:48 · 6 answers · asked by Anonymous

this probably has something to do with higher excited states of an electron or some other charged particles....

2007-02-22 03:16:49 · 4 answers · asked by Saniya 1

I know it is probably impossable, but what do you think would happen. With Newton in mind, I would think that the unmovable object would fall and the force would be gone...

2007-02-22 03:11:56 · 16 answers · asked by Anonymous

I have heard that light travels in the path that requires the least time. Fermat proposed this, and I have seen laws of reflection and refraction derived from it. But why is this principle true in the first case? How will a light photon know which path is the shortest path?

Please answer only if you know. 10 pts for best answer.

2007-02-22 03:06:53 · 1 answers · asked by astrokid 4

2007-02-22 03:03:53 · 3 answers · asked by Mare W 1

2007-02-22 03:03:23 · 3 answers · asked by Mare W 1

2007-02-22 03:03:22 · 2 answers · asked by Rein 1

A truck starts 1 foot from a motion detector and drives away at 2 feet per second for 6 seconds. If the speed were 3 feet per second instead of 2 feet per second and the starting point and number of seconds stayed the same, what would be the effect on the table of values? Oh, and the table of values is referring to that table of values-with time and distance

2007-02-22 02:54:24 · 3 answers · asked by maconheira 4

2007-02-22 02:40:21 · 18 answers · asked by candy a 1

2007-02-22 02:31:44 · 3 answers · asked by divatstating s 1

2007-02-22 02:25:20 · 4 answers · asked by Chandana 4

When They will both strike and where they will strike each other

2007-02-22 02:24:55 · 2 answers · asked by Anonymous

Metric is easier and more convinient.

2007-02-22 02:20:08 · 7 answers · asked by Anonymous

In a linear accelerator, protons are accelerated from rest through a potential difference to a speed of approximately 2.69x10^6 m/s. The resulting proton bean produces a current of 1.03x10^-6 A. The mass of the proton is 1.67x10^-27 kg. and its charge on the proton is 1.6x10^-19 C. The proton beam enters a region of uniform magnetic field B, as shown below, that causes the beam to follow a semicircular path. Determine the magnitude of the field that is required to cause an arc of radius 0.104 m. ANswer in units of T.

2007-02-22 02:16:52 · 2 answers · asked by beehappinow 1

In a linear accelerator, protons are accelerated from rest through a potential difference to a speed of approximately 2.69x10^6 m/s. The resulting proton bean produces a current of 1.03x10^-6 A. The mass of the proton is 1.67x10^-27 kg. and its charge on the proton is 1.6x10^-19 C. If the beam is stopped in a target, determine the amount of thermal energy that is produced in the target in one minute. Answer in units of J.

2007-02-22 02:05:37 · 3 answers · asked by beehappinow 1

In a linear accelerator, protons are accelerated from rest through a potential difference to a speed of approximately 2.69x10^6 m/s. The resulting proton bean produces a current of 1.03x10^-6 A. The mass of the proton is 1.67x10^-27 kg. and its charge on the proton is 1.6x10^-19 C. Determine the potential difference through which the protons were accelerated. Answer in m/s.

2007-02-22 02:02:45 · 2 answers · asked by beehappinow 1

an airplane is dropping supplies to a village. it is flying at an altitude of 785 metres and at a constant horizontal velocity of 53.5m/s. at what horizontal distance before the drop point should the co-pilot drop supplies so that they will land at the drop point?

2007-02-22 01:54:37 · 4 answers · asked by Anonymous

If a bottle is thrown straight out horizontally from a 52.2 m tall tower with a speed of 14.4 m/s, how far does it land from a point on the ground directly beneath the point from which it was launched? What is the bottle's horizontal component of velocity? What is the magnitude of its velocity just before it strikes the ground?

2007-02-22 01:46:49 · 2 answers · asked by avemaria 2

a person drops a Chianti bottle from the top of a vertical tower 52.2 m tall. How long does it take for the bottle to fall to the ground?What is the velocity of the bottle as it hits the ground?

2007-02-22 01:25:56 · 5 answers · asked by avemaria 2

Now we all know the earth is round.
So apart from the air being thinner why do air craft fly so high?
You would think that because the closer to the earth you are the smaller the circumference therefore the shorter distance for the flight and thus saving fuel and emitting less carbons

2007-02-22 01:20:16 · 3 answers · asked by Johnnydun 2

And before you get happy and try to say it's a force.....remember that forces must have mass and acceleration. Gravity as its own entity has neither. Masses can produce forces with acceleration DUE to gravity, but what is gravity?

2007-02-22 01:19:29 · 11 answers · asked by joshnya68 4

I want to know the basic idea about the topic in this question.

2007-02-22 00:46:17 · 3 answers · asked by GURU 1

http://www.nasaexplores.com/show2_912a.php?id=02-001&gl=912

Can someone better explain the first picture on there? It has something to do with reaching the speed of sound but I am still unsure.

2007-02-22 00:34:26 · 4 answers · asked by Jordan 1

this question is from physics class 12 cbse

2007-02-22 00:18:11 · 8 answers · asked by GURU 1

if electrical current has many paths to ground or earth it always chooses the path of least resistance how does it know this.

2007-02-22 00:15:00 · 6 answers · asked by johnboy 4