Physics - November 2006

passenger plane

2006-11-02 02:52:15 · 2 answers · asked by Anonymous

2006-11-02 02:42:25 · 1 answers · asked by goring 6

Sir Isaac Newton.

2006-11-02 02:41:12 · 6 answers · asked by Anonymous

2006-11-02 02:37:15 · 2 answers · asked by goring 6

2006-11-02 02:28:02 · 3 answers · asked by goring 6

2006-11-02 02:25:35 · 12 answers · asked by mr_maths_man 3

A uniform diving board, of length 5.0 m and mass 54 kg, is supported at two points; one support is located 3.4 m from the end of the board and the second is at 4.6 m from the end (see the figure below). What are the forces acting on the board due to the two supports when a diver of mass 65 kg stands at the end of the board over the water? Assume that these forces are vertical. [Hint: In this problem, consider using two different torque equations about different rotation axes. This may help you determine the directions of the two forces.]

2006-11-02 01:59:32 · 3 answers · asked by David S 2

If a spaceship has a momentum of 30,000 kg-m/s to the right and a mass of 400 kg, what is the magnitude of its velocity?

I just need to clear this up; to find this answer, do I multiply or divide for the answer? I'm getting the hang of Physics rather quickly but I'm just not sure what to do here.

Thanks so much in advance!

2006-11-02 01:55:01 · 2 answers · asked by BadRomance 2

2006-11-02 01:54:33 · 5 answers · asked by goring 6

2006-11-02 01:47:04 · 6 answers · asked by Greg8325 2

and what about the Universe how small would it schrink?

2006-11-02 01:33:55 · 4 answers · asked by goring 6

2006-11-02 01:06:22 · 33 answers · asked by fishbone 2

2006-11-02 01:03:07 · 2 answers · asked by goring 6

if a bowling ball was in a moving truck would it's energy be potential or kinetic

2006-11-02 01:01:08 · 4 answers · asked by Anonymous

Two ice skaters, with masses of 50 kg and 75 kg, are at the center of a 60 m diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink. If the heavier skater reaches the edge in 14 s, how long does the lighter skater take to reach the edge?

I have no idea why a cannot get this one. Here's what I am doing:

d = Vit + 1/2at^2

30=1/2(a)(14)^2
a = 0.306 m/s^2 <--acceleration of heavier skater


ma = ma
75(0.306) = 50a
a = 0.459 m/s <--acceleration of lighter skater

30 = 1/2(0.459)t^2
t = 11.430 sec

^That answer appears to be incorrect. Any suggestions?


Thanks

2006-11-02 01:00:22 · 4 answers · asked by Anonymous

In a home laundry drier, a cylindrical tub containing wet clothes rotates steadily about a horizontal axis, as in Figure P7.63. The clothes are made to tumble so that they will dry uniformly. The rate of rotation of the smooth-walled tub is chosen so that a small piece of cloth loses contact with the tub when the cloth is at an angle of 68.0° above the horizontal. If the radius of the tub is 0.385 m, what rate of revolution is needed?

2006-11-02 00:59:41 · 3 answers · asked by giggles9783 1

Can a black hole be microscopic?

2006-11-02 00:40:24 · 2 answers · asked by goring 6

and why should it expand to go where?

2006-11-02 00:32:50 · 3 answers · asked by goring 6

I cannot seem to find any information on this on the internet; i'm wondering does anyone know if there is a maximum freezing rate for anything? Specifically water...

2006-11-02 00:12:35 · 3 answers · asked by Stephanie 2

2006-11-02 00:10:27 · 2 answers · asked by goring 6

2006-11-02 00:08:00 · 14 answers · asked by Anonymous

while sleeping if u r dreaming(say x) and in your dream u saw yourself sleeping and seeing a dream(say y), then what u r seeing in your second dream(i.e. y) also happens with you. Is it true. have u come across with it anytime.

2006-11-01 23:58:32 · 4 answers · asked by Napster 2

Where's the link between consciousness and matter??....Is it somewhere in the mind..... any hint from the theories of evolution??

2006-11-01 23:40:05 · 3 answers · asked by nimit_engineer 1

this is a homework problem- I'm telling you so you know I'm not trying to cheat. I need help with it, here goes:

1) Inelastic collisions between varying masses: Consider 2 objects of mass m1 and m2 with m1 moving at velocity V_i
and m2 initially at rest. Assume they collide
completely inelastically in 1D.
a. Write the final velocity of the coalesced mass (V_final, v f ) after the collision in terms of the initial masses and velocities.
b. If m1 >> m2 what velocity does the coalesced mass approach?
c. If m1 << m2 what velocity does the coalesced mass approach?
d. If instead, m2 initially has the opposite velocity to m1 (same magnitude, opposite direction) what is the final velocity in terms of m1’s initial velocity?
e. For what m2 will the final velocity in part (d) equal 0? For what m2 (in terms
of m1) will the final velocity equal ½ the initial velocity of m1?
My idea is to compare my answers with those of others.

2006-11-01 23:27:21 · 2 answers · asked by azuretechqt 1

Just for eg: If I ....and a dummy having the same physical characteristics that of me ...floating in space ....Does the way of things that follow differs in any way due to consciousness in me and its absence in the dummy.
if consciousness changes the outcome of physical processes....should we attribute a physical factor for it in our equations?

2006-11-01 23:24:48 · 5 answers · asked by nimit_engineer 1

isacc neton is a scientist

2006-11-01 22:41:06 · 4 answers · asked by Kenrick F 1

2006-11-01 22:08:19 · 7 answers · asked by dj_patstar 2

is there any change in the current when the regulator of the fan is rotated...

2006-11-01 21:53:10 · 7 answers · asked by charu 1

If an object's mass increases when it approaches the speed of light, does it equal it's acceleration?

2006-11-01 21:10:55 · 4 answers · asked by Anonymous

2006-11-01 21:08:20 · 5 answers · asked by Anonymous