Physics - February 2007

A small pane takes off at a constant velocity of 150 km/hour at an angle of 37 degrees. At 3.00 s a)how high is the plane above ground and b) what horizontal distance has the plane traveled from the liftoff point?

2007-02-24 16:41:43 · 2 answers · asked by Anonymous

Hi everyone,
This is a physics concerptual question, if anyone could help that would be great.
Decribe the motion of an object that is initially traveling with a constant velocity and then receives an acceleration of constant magnitude a)in a direction parallel to the initial velocity, b) in a direction perpendicula to the initial velocity and c) that is always perpendicular to the instantaneous velocity or direction of motion.
Please help, i dont even understand the question??

2007-02-24 16:33:17 · 1 answers · asked by Anonymous

2007-02-24 16:28:37 · 11 answers · asked by brainy m 1

2007-02-24 16:25:47 · 11 answers · asked by Arun 2

Yes, I know that this is an unconventional question. However, I am in desperate need of an answer. The question plays a role in my novel.

2007-02-24 16:21:43 · 6 answers · asked by Srix 1

2007-02-24 16:17:22 · 6 answers · asked by midnight solitaire 2

Could you control where to end up?

2007-02-24 16:16:22 · 6 answers · asked by Anonymous

2007-02-24 16:06:00 · 7 answers · asked by ♪ ♫ ☮ NYbron ☮ ♪ ♫ 6

2007-02-24 16:02:48 · 3 answers · asked by Buck BUCK 2

2007-02-24 15:58:16 · 3 answers · asked by Anonymous

And NOBODY be alive? Nothing be alive?

2007-02-24 15:53:36 · 1 answers · asked by thewordofgodisjesus 5

2007-02-24 15:41:47 · 2 answers · asked by jhon d 1

what potential different is appliced to two metal plates .5m apart if the electric field between them is 2.5 times 10 to the third n/c?

2007-02-24 15:38:52 · 1 answers · asked by Anonymous

What is the specific heat?
Mass 1=10kg
Mass 2=5kg
Temparature 1=100k
Temparature 2=50k

2007-02-24 15:23:31 · 2 answers · asked by Jeniv the Brit 7

Some one asked me this question about refrigeration of water. Ice slabs of dimensions about 120X20X30 are made in ice plants and it is generally seen that they are empty towards inside from the two side surfaces.

2007-02-24 15:19:24 · 1 answers · asked by Rahul K 2

A 1.50 kg snowball is fired from a cliff 11.5 m high. The snowball's initial velocity of 14.0 m/s, directed 41.0° above the horizontal.


(b) What is the change in the gravitational potential energy of the snowball-Earth system during the flight?
_____ J

2007-02-24 15:14:59 · 3 answers · asked by x2carlosp 2

The potential energy of a diatomic molecule (a two-atom system like H2 or O2) is given by the following expression with r being the separation of the two atoms of the molecule and A and B being positive constants.

U = A/r^12 - B/r^6

This potential energy is associated with the force that binds the two atoms together.

(A) Find the equilibrium separation, that is, the distance between the atoms at which the force on each atom is zero.
a)3.32(A/B)1/6
b)1.12(A/B)1/6
c)1.12(B/A)1/6
(B) Is the force repulsive (the atoms are pushed apart) or attractive (they are pulled together) if their separation is smaller than the equilibrium separation?
a)It is a force of attraction.
b)It is a force of repulsion.
(C) Is the force repulsive (the atoms are pushed apart) or attractive (they are pulled together) if their separation is larger than the equilibrium separation?
a)It is a force of attraction.
b) It is a force of repulsion.

2007-02-24 15:09:48 · 1 answers · asked by x2carlosp 2

2007-02-24 15:03:51 · 6 answers · asked by FLea_Botomy 1

Two children are playing a game in which they try to hit a small box on the floor with a marble fired from a spring-loaded gun that is mounted on a table. The target box is horizontal distance D = 1.55 m from the edge of the table; see Figure 8-46. Bobby compresses the spring 1.10 cm, but the center of the marble falls 28.0 cm short of the center of the box. How far should Rhoda compress the spring to score a direct hit?

2007-02-24 15:02:48 · 1 answers · asked by x2carlosp 2

why does the suction of a droplet to a glass seem to outweigh the power of gravity ?

2007-02-24 14:51:28 · 8 answers · asked by chris a 1

that is i want to know how the electric and magnetic components of light propagate(not only from from a point source but also from some other sources like electric bulb,tubelight etc.

2007-02-24 14:49:09 · 3 answers · asked by ajk 1

the questions are in the prentice hall 2007 edition physics review book for the regents if anyone has the answers for chapter 4 or is will to help me with a bunch please do

2007-02-24 14:25:23 · 1 answers · asked by Anonymous

2007-02-24 14:10:54 · 5 answers · asked by Buck BUCK 2

v(t)=5cos(t) 0=

2007-02-24 14:04:17 · 4 answers · asked by me 2

A 6490 kg helicopter accelerates upward at 0.57 m/s2 while lifting a 1190 kg frame at a construction site. What force does the cable exert on the helicopter?

2007-02-24 13:48:05 · 3 answers · asked by Anonymous

pls..answer the question above cause its my essay requirement on physics for the finals.Thanks!!!

2007-02-24 13:05:28 · 5 answers · asked by Anonymous

Exposure to ulraviolet rays, or gamma rays cannot be made perfectly safe. On the other hand, exposure to all lower frequency Electromagnetic radiation an be made perfectly safe by emiting intensity..pls. Explain..

2007-02-24 12:53:40 · 1 answers · asked by Anonymous

A person rides on a Ferris wheel that rotates with constant angular speed. If the Sun is directly overhead, does the person's shadow on the ground undergo periodic motion? Does it undergo simple harmonic motion? Explain.

Please let me know if I'm on the right track, thanks!
A motion that repeats itself over and over is referred to as periodic motion. A particular type of periodic motion is simple harmonic motion. An example of this is the oscillation of a mass attached to a spring. Simple harmonic motion does not require mass. It so happens that a particular mass/force situation results in simple harmonic motion. However, if the movement of anything obeys x=A sin(Bt) then it is SHM. If a person rides on a Ferris wheel that rotates with constant angular speed and the Sun is directly overhead, the person’s shadow would undergo periodic motion. The shadow undergoes periodic motion, with the same period as the period of the Ferris wheel’s rotation.

2007-02-24 12:50:00 · 1 answers · asked by SMS 1

I am doing a masters degree in physics and would like to know what other job options I have as a physics graduate? what are the highest paid jobs for physics graduates?

2007-02-24 12:45:21 · 4 answers · asked by shalumalu 1

Luke Skywalker stumbles upon a droid robot that plays a distress hologram for Princess Leia over and over. This scene is from the first-ever Star Wars film. And the viewing of the holographic messages was the first step in one of the greatest science-fiction sagas of all time. These days, we see and use lasers and holographic technology on a daily basis and think nothing of it. That Disney cartoon that banners its three-dimensional animated characters, that shiny, embossed image on your credit card or banknote, uncannily realistic and multifaceted museum displays-- these are all made possible because of holography, and the key element here is the laser beam, why only lasers?

2007-02-24 12:35:28 · 2 answers · asked by watari777ph 1