Physics - February 2007

this is hard to explain but ill try
you fill a bottle with water, you then fill a bowl with water
you turn the bottle upside down so that the mouth of it is submerged in the bowl why dosent the water come out?

2007-02-12 14:13:37 · 12 answers · asked by Anonymous

A ball is thrown upward with an initial velocity of 13 m/s. Using the approximate value of g = 10 m/s2, what are the magnitude and direction of the ball's velocity at the following times?

1.1 s after it is thrown

2007-02-12 13:55:16 · 1 answers · asked by RckrSktr 1

2007-02-12 13:46:27 · 14 answers · asked by Anonymous

I'm a high schooler looking into going into politics, either like a congressmen or a lobbyist. How would I go about this? What major should I have in college? Any good schools for this?

2007-02-12 13:45:41 · 3 answers · asked by Anonymous

The factors are: velocity,mass,height,and friction.

2007-02-12 13:45:21 · 2 answers · asked by Anonymous

2007-02-12 13:38:08 · 2 answers · asked by ~ DN ~ 2

2007-02-12 13:35:38 · 10 answers · asked by JOE S 1

Hi,

Capacitors C1 = 10 µF and C2 = 24 µF are each charged to 10 V, then disconnected from the battery without changing the charge on the capacitor plates. The two capacitors are then connected in parallel, with the positive plate of C1 connected to the negative plate of C2 and vice versa. Afterward, what are the charge on and the potential difference across each capacitor?

I know that the charge on the plates will be effected when hooked up initially and then it will go to the standard parallel configuration. But I am still confused as to what to do. Any ideas?


Thanks!

2007-02-12 13:32:44 · 2 answers · asked by Anonymous

2007-02-12 13:10:45 · 4 answers · asked by theresa_xo92 2

I would like information on force specifically about cars.

2007-02-12 13:08:38 · 2 answers · asked by ... 1

Ocean waves are traveling to the east at 4m/s with a distance of 20m. between crests. With what frequency do the waves hit the front of the boat
a. when the boat is at anchor and
b. when the boat is moving westward at 1m/s?

2007-02-12 12:54:51 · 2 answers · asked by Kitana 2

2 metal spheres (A and B) are touching next to each other. You take a negatively charged rod and hold it next to sphere A . Before removing the charged rod, you separate the 2 spheres. What charges will exist on the spheres A and B?
WHY?!?!

2007-02-12 12:52:52 · 3 answers · asked by theresa_xo92 2

7. A car goes around a curve that is banked at an angle of 30.0°. The car will stay on the road without any friction between its tires & the road when its speed is 18 m/s. What is the radius (in m) of the curve?

8. You swing a 5.3-kg bucket of water in a vertical circle of radius 1.1 m. What speed must the bucket have if it is to complete the circle without spilling any water?

9. A 11-g coin slides upward on a surface that is inclined at an angle of 15° above the horizontal. The coefficient of kinetic friction between the coin and the surface is 0.23; the coefficient of static friction is 0.31. Find the magnitude and direction (up/down incline) of the force of friction (a) when the coin is sliding and (b) after it comes to rest.

10. A 0.075-kg airplane is tied to the ceiling with a string. When the airplane's motor is started, it moves with a constant speed of 0.98 m/s in a horizontal circle of radius 0.44 m. Find the angle the string makes w/the vertical & tension in string

2007-02-12 12:40:14 · 1 answers · asked by eureka4sureka 1

Why voltage lead when alternating current through inductor?

2007-02-12 12:39:16 · 4 answers · asked by Muhammad A 1

2007-02-12 12:36:38 · 7 answers · asked by Black ass 1

Two forces act on an object at an angle of 75 degrees.1 force is 195N.The resultant force is 225N.Determine the second force and the angle that it makes with the resultant.

2007-02-12 12:35:30 · 4 answers · asked by sunita s 1

A plane if flying southeast at a constant speed of 900km/h. The wind is blowing towards the north at 100km/h. Determine the resultant velocity of the plane relative to the ground.

2007-02-12 12:33:12 · 4 answers · asked by mochaspice16 1

The pathway along which electricity can flow is called a ___________________.

2007-02-12 12:31:12 · 4 answers · asked by bhangraking777 1

A weight of the block on a table is 494 N and that of a hanging block is 175 N. Ignore all frictional effects, and assuming the pulley to be massless.

a) Find the acceleration of the two blocks.
____m/s2

(b) Find the tension in the cord.
_____N

2007-02-12 12:29:13 · 1 answers · asked by vntraderus88 1

it's either primary, storage or fuel

Honors Physics Question

2007-02-12 12:27:37 · 5 answers · asked by bhangraking777 1

Suppose a Chinook salmon needs to jump a waterfall that is 1.45 m high. If the fish starts from a distance 1.02 m from the base of the ledge over which the waterfall flows, find the x- and y-components of the initial velocity the salmon would need to just reach the ledge at the top of its trajectory.
v0x = __ m/s
v0y = __ m/s

Can the fish make this jump? (Assume that a Chinook salmon can jump out of the water with a speed of 6.26 m/s.)

Thank you so much in advance! :) Any help would be great! I only have a few guesses left before I get the answer wrong.

2007-02-12 12:24:40 · 2 answers · asked by Anonymous

Question:
Give examples of types of elasticity to which Hooke's Law applies.

I have no idea what this is supposed to mean; I already tried looking on wikipedia and such. Thanks for your help :D

2007-02-12 12:09:31 · 7 answers · asked by ss_goldeneagle 1

A pitched ball is hit by a batter at a 47 degree angle. It just clears the outfield fence, 92 meters away. the acceleration of gravity is 9.8 meters per seconds square.

2007-02-12 11:58:25 · 2 answers · asked by Anonymous

2007-02-12 11:40:30 · 3 answers · asked by Anonymous

If I was in training and could increase the amount of gravity my body was subjected to, what would happen to me (not only physically but mentally as well). Also is this even possible to do?

2007-02-12 11:27:46 · 13 answers · asked by Anonymous

A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long. The bowler hears the sound of the ball hitting the pins 2.5 s after the ball was released from his hands. What is the speed of he ball? The speed of sound is 340 m/s.

2007-02-12 11:18:27 · 3 answers · asked by Anonymous

2007-02-12 11:16:37 · 2 answers · asked by pattycake9000 1

A car traveling 88km/h is 110 m behind a truck traveling 75km/h.
How long will it take the car to reah the truck?

I dont understand how to arive at the answer. Can someone show me HOW to do it? Thank you

2007-02-12 11:13:16 · 4 answers · asked by Anonymous

I know mercury and coloured alcohol is very commonly used for liquid thermometers....but why not water? Water might not be used because it doen't rise when heated right??

2007-02-12 11:13:01 · 11 answers · asked by ~ DN ~ 2

I have an exam tomorrow and I wasn't able to purchase the textbook today....:(

2007-02-12 11:10:25 · 1 answers · asked by cook1 2