Physics - November 2006

2006-11-08 08:15:59 · 4 answers · asked by lhbaum 1

You are shadowing a nurse in the emergency room of a local hospital. An orderly wheels in a patient who has been in a very serious accident and has had severe bleeding. The nurse quickly explains to you that in a case like this, the patient's bed will be tilted with the head downward to make sure the brain gets enough blood. She tells you that, for most patients, the largest angle that the bed can be tilted without the patient beginning to slide off is 32.0 degrees from the horizontal.

a. on what factor does this angle of tilting depend?
b. find the coefficient of static friction between a typical patient and the bed's sheets.

This problem is giving me trouble.
Please help me to understand it.

Please mark each part to the question to avoid confusion.

2006-11-08 08:00:37 · 4 answers · asked by vicky p 1

if so explain in two statements.

2006-11-08 07:56:26 · 8 answers · asked by ILIKETOPARTYY~! 3

I have heard that cell phones pick up the signal from the nearest cell tower and as you move you switch from tower to tower. But let's say that I'm travelling really fast within the coverage of a single tower, like on a military fighter jet or something like that. Does that tower's coverage just cover the area and if you're within that geographical region you'll get a signal no matter how fast you're travelling throught it?

2006-11-08 07:49:00 · 6 answers · asked by threesixty3 1

i'm taking both now, the only thing im sure about is that i wanna be a theoretical physicist, i dont know if engineering tecniques that i will learn will help me in research or anything else

2006-11-08 07:33:58 · 6 answers · asked by Salem O 1

Consider a point in the ocean about 10.9 km deep. The pressure at that point is huge, about 1.12 X10^8 N/m^2.
(a) What is the change in volume of 1.00 m^3 of water carried from the surface to this point in the ocean?
in m^3?

(b) The density of water at the surface is 1.03X10^3 kg/m^3. What is its density at this point?
in kg/m^3?

2006-11-08 07:19:09 · 3 answers · asked by activegirl 1

2006-11-08 07:16:56 · 3 answers · asked by howlettlogan 6

A rectangular air mattress is 2.2 m long, 0.49 m wide, and 0.10 m thick. If it has a mass of 2.0 kg, what additional mass can it support in water?

2006-11-08 07:14:35 · 3 answers · asked by activegirl 1

A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, the boat sinks an additional 4.30 cm into the water. What is the weight of the truck? In N?

2006-11-08 07:07:10 · 3 answers · asked by activegirl 1

2006-11-08 07:06:19 · 4 answers · asked by lucky 1

2006-11-08 07:06:19 · 8 answers · asked by Jae G 2

The index of refraction for violet light in silica flint glass is 1.65 and that for red light is 1.62. What is the angle of deviation for the red ray passing through a prism of apex angle 58.2 degrees if the angle of incidence is 46 degrees?

What is the angular dispersion of visible light with the same angle of incidence?

2006-11-08 06:56:07 · 2 answers · asked by vem1225 1

What is the volume of the bubble when it reaches the surface? Assume that the temperature and the number of air molecules in the bubble remains constant during its ascent.

2006-11-08 06:46:57 · 4 answers · asked by ertsgirl06 1

A heavy ball swings on a string in a circular arc of radius 2 m.

The two highest points are Q and Q' where the string is 29 degrees from the vertical. Point P is the lowest point where the string is vertically down.

acceleration due to gravity is 9.8 m/s^2.

What is the ball's speed at point P? Neglect air resistance and other frictional forces.

2006-11-08 06:46:04 · 5 answers · asked by Anonymous

that is similar to Earth, there is a 3.5 kg mass that weighs 34.3 N.

A) Calculate the mass o the planet in kg
B) Calculate the average density of the planet in kg/m^3

Radius of the planet is roughly 7.4 x 10^6m
G = 6.67259 x 10^-11 N . m^2/kg^2

2006-11-08 06:40:02 · 1 answers · asked by Dee 4

(a) Neglect air resistance and determine the kinetic energy of the ball at its highest poin. (b) What is the speed when it is 5.06 m below its highest point?

2006-11-08 06:36:34 · 2 answers · asked by meggers 3

with a speed of 7.00 m/s. The ball goes through the net 3.31 m above the floor at a speed of 5.23 m/s. What is the work done on the ball by air resistance, a nonconservative force?

2006-11-08 06:30:53 · 3 answers · asked by meggers 3

The bullet has a mass of 0.014 kg and is traveling at 220 m/s, the pendulum is at rest and has a mass of 3.1 kg. The pendulum is hanging from a string that is 3.5 m long.

2006-11-08 06:23:09 · 3 answers · asked by Lisa 1

2006-11-08 06:12:05 · 5 answers · asked by Lisa 1

what came first either

coordinate geomatry
or
simultanous equations
or
were they designed totally different?
help pleASE

2006-11-08 05:41:01 · 1 answers · asked by Anonymous

2006-11-08 05:40:22 · 3 answers · asked by aaron g 1

I don't even know what the First Law of Motion is..
Is it the same as the First Newton's Law?

2006-11-08 05:26:32 · 5 answers · asked by heyheyhey 2

2006-11-08 05:19:09 · 6 answers · asked by vgautham_91 2

How is the dust changed by the impact of the air particle. Does it change direction from impact? Does it do anything to the wall of the particle that it hits with high speed impact? I don't know exactally why I am even interested it is just curosity of the insane.I am just thinking about all the different particles that are constantly bombarding each other and the actual effect. Does the speed of the particle's movement create any energy?

2006-11-08 05:05:20 · 3 answers · asked by happylife22842 4

Do we know if the smaller particles that bounce at random as you might assume, off of the dust particles, increase in speed or decrease when they hit the dust? Is there a way to determine that speed or is it random too? I guess it would depend on the density of the dust, right?

2006-11-08 04:28:53 · 2 answers · asked by happylife22842 4

why don't we feel warm in winter without clothes?explain.

2006-11-08 04:18:16 · 5 answers · asked by vijay kumar98724 1

Gas molecules at room temparature have velocities comparable with those of rifle bullets, yet a gas like ammonia with strong odour takes several second to diffuse accross a room. why?

2006-11-08 04:15:33 · 3 answers · asked by vijay kumar98724 1

~*1*~A force can be defined as:

A the ability to cause acceleration
B the ability to cause changes in motion of an object
C a push or a pull
D all of the above

~*2*~A change in velocity of an object indicates that:

A the object has accelerated
B an unbalanced force has acted on the object
C the object has sped up, slowed down, or changed direction
D all of the above

~*3*~According to Newton's Second Law, the greater a force on an object, the greater its:
A mass
B acceleration
C velocity
D speed

2006-11-08 04:10:57 · 5 answers · asked by maconheira 4

It Brownian Motion therory, It is believed that every particle is moving. In the model I have seen it appeared to be random. My question is this; Does the movement of particles have a definite pattern, and how long does it take to repeat its self?

2006-11-08 04:01:25 · 2 answers · asked by happylife22842 4

2006-11-08 03:50:44 · 10 answers · asked by Anonymous