Physics - October 2006

as I understand it thinkgs were pretty small back in that day and also we have the age old philisophicle question as to whether there was a sound of the tree falling if no one was around to here it, hence, "Little Click " might be a more politically correct (not wanting to hurt peoples feeligns who lean toward no ear, no sound)

2006-10-08 13:14:31 · 3 answers · asked by Anonymous

velocity and acceleration

2006-10-08 12:34:14 · 10 answers · asked by lgenes_esc5161 1

if everything has a begining and an end then what is the deal with space?

2006-10-08 12:33:39 · 4 answers · asked by Anonymous

A hockey puck is hit on a frozen lake and starts moving with a speed of 13.8 m/s. Five seconds later, its speed is 5.10 m/s.

a.) What is its average acceleration ?
b.) What is the average value of the coefficient of kinetic friction between puck and ice?
c.) How far does the puck travel during the 5.00 s interval?

2006-10-08 12:17:05 · 5 answers · asked by activegirl 1

If enough energy is conserved and unleashed at the same time that it transforms into Matter?

I had been taught that E=mc2 was the discovery of Energy to matter and matter to energy.

So if a human could muster enough energy could he change it to matter? Sounds like magic to me

2006-10-08 11:53:03 · 11 answers · asked by Mr. Unknown 2

2006-10-08 11:44:44 · 11 answers · asked by Anonymous

what is the force that the boulder has when it hits the ground? and what formula is used?

2006-10-08 11:29:07 · 6 answers · asked by Anonymous

If an object is moving on the surface of a sphere, its postion and velocity vectors must be perpendicular.

2006-10-08 11:04:58 · 2 answers · asked by Anonymous

2006-10-08 10:42:55 · 6 answers · asked by Anonymous

A car is driven at a constant speed over a circular hill and then into a circular valley with the same radius. At the top of the hill, the normal force on the driver from the car seat is 0. The driver's mass is 70.0 kg. What is the magnitude of the normal force on the driver from the seat when the car passes through the bottom of the valley?

The answer is 1.37 x 10 ^3 N, but I am not sure how to get that answer.

2006-10-08 10:41:12 · 1 answers · asked by afchica101 1

2006-10-08 10:40:59 · 5 answers · asked by Anonymous

The acceleration of a particle on a horizontal xy plane is given by
a = 3tiˆ + 4tˆj , where a is in metres per second-squared and t is in seconds. At t = 0, the
particle has the position vector r = (20.0 m)iˆ + (40.0 m) ˆj and the velocity vector
v = 5.00 m/s iˆ + 2.00 m/s ˆ r . At t = 4.00 s, what are (a) its position vector in unit-vector
notation and (b) the angle between its direction of travel and the positive direction of the x axis

2006-10-08 10:28:57 · 1 answers · asked by Galaxy D 2

About the emotional consciousness of astrophysics, astronomers and nuclear physics about the Nobel Prize, which comes from the disturbance of morally transform their state of being, awake by the feeling of ignorance, which based the interpretation of the powers of the “Grand Atom” Universe mechanism, only founded in the Sun’s reaction, such as: light, mid atomic waves caused by the electrons’ ups and downs inside the atom, not considering the complete mechanism of the Universe: Sun (nucleus) interacting with the Interstellar System (finite surroundings) by the power of Planet Earth (center of balance), according to the book to be published by the projector and scientist self-taught person Tarcísio Brito.

2006-10-08 10:19:37 · 4 answers · asked by britotarcisio 6

a) Astrophysics, astronomers and nuclear physics’: light, mid atomic waves caused by the electrons’ ups and downs inside the atom
b) Tarcísio Brito’s (self-taught scientist): Grand Atom (Universe) divided into three powers: Protons, Electrons and Neutrons. The sun contains the positive power (Protons), but with negative feedback (Electrons) and the Interstellar System contains the negative power (Electrons), but with positive feedback (Protons). Planet Earth is responsible for the Neutrons, acting in order to unbalance positive and negative powers in its limits. Therefore, neutralizes beginning and end. And so energies come from the place where they go to, and go to the place where they came from.

2006-10-08 10:04:03 · 3 answers · asked by britotarcisio 6

i need the density

2006-10-08 09:47:34 · 4 answers · asked by lore r 1

2006-10-08 09:44:18 · 6 answers · asked by Anonymous

2006-10-08 09:18:50 · 9 answers · asked by Rilley 1

exact definition of charge?

2006-10-08 09:10:28 · 5 answers · asked by shair m 1

I have an assignment for physics class in which I have to build a paper bridge. Requirements are that only 10 sheets of typing paper and elmer's glue can be used, the bridge has to weigh less than 75g, has to be less than 5mm in thickness, and has to span a space of 15cm. The lighter it is and the more it can hold, the better the grade. Also, nothing but the "road" can be within or attatched anything in the 15cm gap. All supports and things must be outside that. Any ideas or advice? Thanks in advance.

2006-10-08 09:05:28 · 3 answers · asked by lildude 1

Is this an example of Ohm's law?

2006-10-08 09:02:34 · 3 answers · asked by Anonymous

2006-10-08 09:00:37 · 3 answers · asked by Anonymous

2006-10-08 08:55:57 · 10 answers · asked by Andrew S 1

I am trying to find a situation where the kinetic friction acting upon an object is grater than the static friction acting upon it.

2006-10-08 08:52:00 · 4 answers · asked by Rowdy and Rooty 1

True or False

2006-10-08 08:49:22 · 5 answers · asked by cantfindem 1

True or False

2006-10-08 08:46:54 · 4 answers · asked by cantfindem 1

2006-10-08 08:25:32 · 4 answers · asked by Anonymous

2006-10-08 08:24:34 · 19 answers · asked by forapound 1

science experiment

2006-10-08 08:14:05 · 10 answers · asked by Emily Rose 2

US army is using lot these days.

2006-10-08 07:32:35 · 5 answers · asked by White Is The Color 1

2006-10-08 06:56:36 · 13 answers · asked by phanendra k 1