Physics - January 2007

If you could use formulas to explain that would be awesome =).

2007-01-17 13:35:28 · 2 answers · asked by ~*KaRmA*~ 1

If you take a bite of hot pizza, the sauce my burn your mouth while the crust, at the same temperature, will not. Explain.

2007-01-17 13:34:31 · 4 answers · asked by blah 3

A diver 3 meters below a glacier fed lake in the Rocky Mountains or a diver 3 meters below the Great Salt Lake? Why?

2007-01-17 13:21:24 · 5 answers · asked by NoturTypicalBI! 3

2007-01-17 13:11:29 · 5 answers · asked by bungrel 1

If a force of 70N is exerted on the input piston, what mass can be lifted by the output piston?

2007-01-17 13:11:29 · 2 answers · asked by NoturTypicalBI! 3

2007-01-17 13:06:54 · 7 answers · asked by ? 6

an airplane flies 400 km west from city A to city B,then 300km northwest to city C and finally 100km north to city D. how far it is from city A to city D? in what direction must the airplane head to return directly to city A from city D?

2007-01-17 12:48:53 · 2 answers · asked by xyre_cool 1

if i hold a steel rod that is 1 meter long with a knob on the end and i turn 360 degrees, the knob travels at X speed.
if i extend the rod to 10 meters and urn at the same speed, the knob travels at a faster velosity.
if i extend the rod to EG. 100 trilion miles, surley the knob at the end would break light speed???? or would the rod bend??? or physics would force me to turn at a slower speed???

2007-01-17 12:34:42 · 16 answers · asked by stevenhawkins2208 3

please explain in "physics terms" such as pressure, molecules, ect. =]

2007-01-17 12:32:54 · 7 answers · asked by blah 3

2007-01-17 11:59:12 · 2 answers · asked by Lawal A 1

When the center-to-center separation between two small charged spheres is doubled, the electric force between is?

2007-01-17 11:41:44 · 2 answers · asked by Anonymous

How does the pressure change when she stands only on one foot?

2007-01-17 11:37:56 · 2 answers · asked by NoturTypicalBI! 3

The magnitude of each of the charges in the figure is 9.00x 10^-12 C. The lengths of the sides of the rectangle are 3.00 cm and 6.00 cm. Find the magnitude of the electric field at the center of the rectangle in figures a and b.
figure a N/C
figure b N/C

http://www.webassign.net/CJ/18-21fig.gif

I have tried multiple ways of solving this problem to no avail. I am using coulomb's law to find the electric field (E=(kq)/r^2 and am not getting the right answer.

Here's what I'm doing:

E= ((8.99x10^9)(9.00x10^-12))/(.06708^2)

I obtained the radius using the pythagorean theorem.

Any help that anyone can offer would be greatly appreciated.

2007-01-17 11:34:31 · 1 answers · asked by larkinfan11 3

use the equation f = m x a to answer question.

(force = mass x acceleration)

2007-01-17 11:33:12 · 1 answers · asked by sue m 2

use the equation f= m x a to answer the question
(force = mass x acceleration)

2007-01-17 11:28:42 · 2 answers · asked by sue m 2

a. far apart
b. equidistant
c. horizontal
d. vertical

2007-01-17 11:25:46 · 7 answers · asked by last3member2002 1

A proton accelerates from rest in a uniform electric field of 610 N/C. At some time later, its speed is 1.40 106 m/s. (a) What is the magnitude of the acceleration of the proton? (b) How long does it take the proton to reach this speed? (c) How far has it moved in this time interval? (d) What is its kinetic energy at the later time?

Help would be AMAZING. THANK YOU.

2007-01-17 11:23:19 · 1 answers · asked by alyssa w 1

A proton accelerates from rest in a uniform electric field of 650 N/C. At some time later, its speed is 1.30 106 m/s.

a) What is the magnitude of the acceleration of the proton?
_________m/s2 (units)
(b) How long does it take the proton to reach this speed?
_________seconds
(c) How far has it moved in this time interval?
_________meters
(d) What is its kinetic energy at the later time?
__________ Joules



....sorry, i just don't understand how to go about these problems. if you could explain your answer that'd be great too!!!

2007-01-17 11:14:34 · 4 answers · asked by Anonymous

If the meteorite struck the car with a speed of 630 m/s, what was the magnitude of its deceleration, assuming it to be constant?

can any one help me

2007-01-17 11:03:16 · 3 answers · asked by darlinhun05 1

Wait, so since the clock was moved to 5 minutes before midnight, what happens when it reaches to midnight? Can the clock be moved backward?.I'm just a kid so I'm just wondering why do people make nuclear weapons if they know the world can be dangered? Any other details, plz? (This is scary!)

2007-01-17 10:42:03 · 6 answers · asked by Anonymous

2007-01-17 10:28:48 · 13 answers · asked by Anonymous

If you catch up with light...do you see it?

2007-01-17 10:19:27 · 4 answers · asked by Stef 4

I'm working on a research project where I have to define the physics behind creating relative humidity in the laboratory. I can't seem to find the mathematical relationships for using a bubbler to create water vapor or relative humidity.

2007-01-17 10:16:08 · 2 answers · asked by vraz33 1

Imagine two black holes of similar proportions that were exactly far enough away from each other that their gravitational horizons were barely integrating. In theory, what could be the results of such an occurance?

2007-01-17 10:02:06 · 13 answers · asked by Sammy D 1

What happens if we do? How would we know?

2007-01-17 09:43:32 · 1 answers · asked by Ejsenstejn 2

To attain the maximum range, a projectile has to be launched at 45 degrees if the landing spot and the launch spot are at the same height (neglecting air-resistance effects). Explain how the relation between the vertical and the horizontal components of the initial velocity affects the projectile range.

2007-01-17 09:33:08 · 1 answers · asked by Banana28 1

hmwk

2007-01-17 09:19:08 · 10 answers · asked by Anonymous

2007-01-17 09:11:08 · 5 answers · asked by Banana28 1

if you walk into a pitch black room and flick the lightswitch on it goes bright quickly ...., but the dark was there first surely ?? does this mean that speed of dark is faster than the speed of light ????

2007-01-17 09:04:57 · 10 answers · asked by only meee!!! 1

2007-01-17 08:59:25 · 5 answers · asked by Ejsenstejn 2