Michael

I have always wanted to know why. Girls help me out

PLEASE HELP AND SHOW YOUR WORK!!!!!

1) A 9.8 kg firework is launched straight up and at its maximum height 16 m it explodes into three parts. Part A (1.5 kg) moves straight down and lands 0.17 seconds after the explosion. Part B (3 kg) moves horizontally to the right and lands 6.5 meters from Part A. Part C moves to the left at some angle. How far from Part A does Part C land (no direction needed)?

2) A 3 kg object starts 1.6 meters from the ground on a 16 degree incline with friction m =0.09. When it hits the ground, it collides and sticks to a 5 kg object. The friction on the horizontal surface is m =0.28 How far do the objects travel away from the incline?

3) A 1 kg object slides down a frictionless track (starting 0.39 m above the ground) to a horizontal surface where it collides elastically with a 0.5 kg mass. 3.3 m later the 0.5 kg mass hits a k=11 N/m spring and compresses is 1 cm. What is the coefficient of friction on the horizontal surface?

4) A frictionless track with a loop of radius 38 cm sits on a table 1 meters above the ground. If a 0.27 kg object just makes the loop, how high above the table did the object start and how far from the table does it land?

5) A 2.63 kg spherical ball with radius 0.7 cm rolls on a track with a loop of radius 37 cm that sits on a table 1.1 meters above the ground. The last 1 meter section of the track is horzontal and is not connected to the rest of the track. 0.3 meters of this section of the track hangs over the edge of the table. The track has a linear mass density of 0.46 kg/m.

How high above the table must the rolling ball start to just make the loop?

How far does the ball travel along the loose length of track before the track starts to tip?

6) Two balls are conneted by a string that stretches over a massless, frictionless pulley. Ball 1 has a mass of 0.59 kg and is held 0.84 m above the ground. Ball 2 has a mass of 7.8 kg and is held 0.1 m above the ground. When the balls are released, ball 2 falls to the ground, looses 7 \% of its kinetic energy and rebounds to some maximum rebound height. When the balls are released, ball 1 travels to some maximum height before starting to fall. Assume that ball 1 reaches its maximum height during ball 2's rebound so that the string doesn't pull.

Calculate the maximum height of ball 1 from and ground and the rebound height of ball 2

which pair of elements is listed in order of decreasing first ionization energy?

a) Na, Mg

B) Mg, Al

C) Al, Si

D) Si, P

An element with a low melting point that does not conduct electricity would most likely b found on the periodic table...

a) in the upper right portion

B) in the upper left portion

C) in the lower left portion

D) in the middle

the first thre ionization energies of an element X are 590, 1145, 4912 kj/mol. the most likely formula for a stbale ion of X is

A) X+

B) X2+

C) X3+

D) X-

which have both ionic and covalent bonds?

Salts

I. NH4Br

II NaNO2

A) I only

B) II only

C) both

D) neither I or II

How many valence electrons are present in the tetra borate ion (B4O7)^2-

a) 42

B) 54

C) 56

D) 62

Which substance has the highest melting point?

a) silicon Carbide (SiC)

B) phosphorus pentachloride (PCl5)

sulfer (S8)

phosgene (COCl2)

I want to find a nice cute girl

For each answer explain a little why plz...

1) Which metal reacts most vigorously with water?

A) Al

B) Cs

C) Sr

D) Ba

Which gas dissolves in water to produce a solution that turns phenolphthalein pink?

A) CH4

B) H2S

C) NO2

D) NH3

3) which lead salt is most soluble in water?

A) Pb(C2H3O2)2

B) PbO2

C) PbCO3

D) Pb3(PO4)2

4) which metal reacts witty concentrated NaOH to produce a hydrogen gas?

A) Al

B) Cu

C) Fe

D) Mg

5) which pf the following substances would NOT be expected to react with 1M HCl?

A) CaO

B) SO2

C) MnO2

D) K2CO3

6) when 1.187 g of a metallic oxide reduced with excess hydrogen, 1.054 of the metal is produced. What is the metallic oxide?

A) AgO2

B) K2O

C) Cu2O

D) Tl2O

7) At the same temperature and pressure, samples oxygen and carbon dioxide gas with equal masses...

A) contain the same number of molecules

B) occupy equal volumes

C) possess molecules with the same average velocity

D) have molecules with the same average kinetic energy

Real gases are most likely to deviate from ideal behavior at conditions of...

A) low temperature and low pressure

B)low temperature and high pressure

C)high temperature and high pressure

D) high temperature and low pressure

Like 15-30 percent all around except for the front windshield.

elastically, what are their speeds? Use negative sings to denote direction, assuming the initial speeds are in the positive direction.

ABout how much fencing is needed for the larger circular area if the swimming pool is 14 m in diameter and the patio extends 7 m beyond the pool?

A box contains 10 cards: 4 labeled "E" 3 labeled "D" and 3 labeled "T". If a card is drawn, what is the probability(E, not E)?

A 7/25 B 4/15 C14/25 D11/20

Would you like everybody at your school to call you "lunch meat"? Only becasue your last name is buloni. I know I wouldn't! In Beacuse of Winn Dixie, name calling was last on India Opal Buloni's list of disasters until something appeared in her life and turned it all around. Bcause of Winn Dixie, the book and the movie, is great, but have many differences.

OR Is this better

Would you like everybody at your school to call you "lunch meat"? Only becasue your last name is buloni. I know I wouldn't! In Because of WInn Dixie, a ten year-old girl named INdia Opal Buloni 's life was a disaster. SHe moved once again losing her friends, lost her mother, and had bad reputation at school, until something came into her life and turned it all around. Bcause of Winn Dixie, the book and the movie, is great, but have many differences.

this is for my graduation year book thanks its due by monday thanks

under 250 words due by wednesday hurry up please!!!!!!

It has to be between 600 to a 1000 words. Imagine your a spy during the american revolution. Why you became a spy some experiences during the war and what consequences happened to you because of your actions personal and to the war general

the bold words are either correct or incorrect posseisive nouns if

the possessive is formed in correctly put it the right way ok

Sams’ sketches are displayed near the school office.

It is good way to compare several birds’ habitats.

You can observe their nests on a cliff or under a buildings’ eaves

Some student’s reports are about the diets of various birds.

I read that a bald eagles’ favorite food is salmon

Victor taped the sound made by a hummingbird’s wings.

Some birds’s migration journeys can cover thousands of miles.

The map’s key can help you figure the distance in miles.

On Parents’ Night, we will present our bird projects.

first to answer it right gets 10 points

please its due wednesday and im desperate please!!!!!!!!!!!!!!!!!!!!!