Physics - May 2007

2007-05-28 07:41:16 · 5 answers · asked by Voight-Kampff 3

A 0.28-kg soccer ball is rolling at 7.0 m/s toward a player. The player kicks the ball back in the opposite direction and gives it a velocity of -14 m/s. What is the average force during the interaction between the player's foot and the ball if the interaction lasts 3.0E-2 s?
_____ N

2007-05-28 07:27:21 · 3 answers · asked by Khoi 1

A shuffleboard player pushes a 0.25 kg puck, initially at rest, with a horizontal force of 6.00 N moving it through a distance of 0.200 m. Neglect friction.

(a) What is the kinetic energy of the puck when the force is removed?
_____ J
(b) What is the speed of the puck when the force is removed?
_____ m/s

2007-05-28 07:14:03 · 2 answers · asked by Khoi 1

2007-05-28 06:54:35 · 7 answers · asked by Anonymous

2007-05-28 06:20:21 · 11 answers · asked by Anonymous

how long will take to drive from my house to my mom's house, 5km away, the time can be calculated using my car's?
a. Acceleration
b. Motion
c. position
d. average speed

HELP!!!!!!!!!

2007-05-28 06:16:02 · 7 answers · asked by Anonymous

2007-05-28 06:14:23 · 3 answers · asked by goring 6

Can someone explain the effects humidity levels affect solvent evaporation from paint films?

2007-05-28 05:30:38 · 2 answers · asked by taulmachof 1

2007-05-28 05:18:31 · 4 answers · asked by goring 6

Suppose I have a negatively charged plate at -10000v (static) and a neutral plate in front of it; quiet close to it, this charged plate will induce +10000v in the inner surface of this neutral plate right??....or near to that potential difference if the case is not ideal isn’t it??.

And an opposite charge of the same magnitude in the outer surface of this neutral plate….that is -10000v right??

Just confirming….I don’t find things in such details in the net or the books…..I just thought bout……is this true??....this things been a real head ach to me

I doubt if any article has been written on this.

2007-05-28 05:06:35 · 4 answers · asked by Anonymous

2007-05-28 04:49:04 · 19 answers · asked by john 1

energy released from by the sun result from the process wherein atomic nuclei.
a) bread apart
b) combine.
c) both of these
d) none of these

2007-05-28 04:39:45 · 5 answers · asked by Anonymous

2007-05-28 04:20:11 · 14 answers · asked by Anonymous

when the distance between two charges is doubled, the electrical force between the charges..
a)increases four times.
b) doubles.
c) halves.
d) is reduced by a 1/4.

2007-05-28 04:19:12 · 5 answers · asked by Anonymous

I find that whenever i enter a room with white light,my mood becomes unstable and i tend to get annoy easily.
However,my mood becomes real plesant and good when i switch off the white light and replace it with my lamp light that emit those orange lights.

Am i someone whose affected by lights?

2007-05-28 04:13:19 · 7 answers · asked by Evans 1

when thorium(atomic number 90) emits a beta minus particle, the resulting nucleus has atomic number
a) 88
b) 89
c) 90
d)91

2007-05-28 03:44:01 · 4 answers · asked by Anonymous

2007-05-28 03:41:59 · 32 answers · asked by simar 1

2007-05-28 03:26:48 · 8 answers · asked by johnnyBgood 4

a light rod rests horizontally on supports at its ends.the rod carries 2 equal point loads,one at a distance x from one end and the other at distance x from the other end.show that the magnitude of the vertical force acting on the rod at each of the supports is independent of x.
a light clothes rail of length 2.5 m rests horizontally on supports at its ends.the rail has 25 identical garments hanging on it,at points distant(10n-5) cm from one end ,for n=1,2,....,25.the total weight of the garments is 250 N .state the magnitude of the vertical force acting on d rod at each of the supports.the garments 5th nd 14th from one end are removed.find the magnitude of the vertical force now acting on the rod at each of the supports.

2007-05-28 03:14:06 · 1 answers · asked by Anonymous

i watched a documentary about a new super conductor that they found in gold when the super heated it to form a powder, this stuff looks amazing, seemingly its the philosophers stone. can this be verified or is it leading me on?

2007-05-28 03:02:02 · 5 answers · asked by techno mentalist 4

2 men each of mass 80 kg and a woman of mass 64 kg are walking on a horizontal path which forms an edge of a lake.the woman s expensive hat is blown into the lake and is caught by reeds at a distance of 4 metres from d path.a rigid plank,of lenghth 6 metres and whose weight can b ignored is availablle for use in retrieving the hat by alowing it 2 rest on the path while overhanging the lake woth 2 ppl standing on the part of the plank which is in contact with the path and the third person effecting the recovery..determine whether (A) one of the men can effect the recovery...(B) the woman can effect the recovery?? Reply

2007-05-28 03:00:27 · 3 answers · asked by Anonymous

Which physical state of matter exhibits the greatest change in volume (the amount space the atoms take up when the substance changes state)?

Which of the following is not a characteristic of a solid?
It is not free-flowing.

It can change its volume and shape.

It is not easily compressible.

It expands when heated.

Which state of matter has vibrational motion only?

Why does a liquid assume the shape of the part of the container that it occupies?

A gas is compressible because there is little free space between the particles.
T or F

Which is a characteristic of a gas?

Particles can't move past one another, spreading out to take the shape of the container.

There is little free space between particles, which allows compression.

Particles can move past one another, spreading out to take the shape of the container

Which is not a characteristic of a gas?

Particles can't move past one another, spreading out to take the shape of the container.

There is lots of free space between particles, which allows compression.

Particles can move past one another, spreading out to take the shape of the container.

2007-05-28 02:38:05 · 3 answers · asked by thepolishway 3

2007-05-28 02:20:01 · 3 answers · asked by Defuzer 2

What effect would gravity have? Would I end up at the centre?

2007-05-28 00:04:21 · 35 answers · asked by Nick P 1

2007-05-27 23:50:24 · 5 answers · asked by Anonymous

40 years? 2 years?

2007-05-27 22:38:37 · 17 answers · asked by knuckleheadmcspazmatron 4

how do you solve and what formula would you use?

2007-05-27 22:23:20 · 5 answers · asked by Jenny B 1

2007-05-27 22:10:46 · 5 answers · asked by naush 1

2007-05-27 22:00:08 · 2 answers · asked by boka 2

Please list all the locations. If someone could provide a map of earth with the locations of plants and possible locations would be greatly appreciated. Any sources or websites where you got the information too please. Thank you.

2007-05-27 19:42:57 · 3 answers · asked by Paulk 2