# Posts by Sabrina

Total # Posts: 543

**Chemistry**

Look at the electron configurations for example One of the discontinuities happen from Be to B and the other from N to O In both these situations Be and N were in a stable position ( full orbital or half full orbitals) So they need more energy to go to next level therefore, ...

**exceptionall children**

transactional relationship exist in families because .my answer is b. children and adults influence each others behavior

**ENG 122**

When using the BEAM style of evaluation, which of the following is UNLIKELY to occur? (Points : 1) Writers will probably meet all research needs. Writers will need multiple examples of all four kinds of sources. Any single source will probably feature more than one of the BEAM...

**Science help ms sue.**

c C B C C B B D A C C I got a 100 on this ;D

**The Power of Media**

#1. Which of the following is an example of a print medium? a) a blog b) a newspaper c) a magazine’s website d) all of the above ******* #2. Which of the following is an example of a public service announcement, or PSA? a) a commercial advertising an unscented detergent b...

**Grammar**

I know right! Thanks Steve! :-)

**Grammar**

Oops Sorry, Here is the correct way: At the end of some passages there ______ trapdoors into the dungeons. a.) are ******* b.) is

**Grammar**

Choose the right form of the verb for the sentence below: At the end of the some passages ___________ trapdoors into the dungeons. a.) are ******* b) is

**Math-----Thanks Damon**

Thanks Damon for checking my answers! :-)

**Math ~ Check Answers ~**

Shut up!

**To Like_A_Boss**

Like_A_Boss I said check not do my Homework! OK! so mind your own business!!!!

**Math ~ Check Answers ~**

A system of linear equations is shown below. 5X = 3y - 2 y = X + 4 What is the x -coordinate of the solution? a.) 2 b.) 4 ***** c.) 5 d.) 1 Jean needs to graph the function below. y = 7x ^2 + 8x -6 How many times should the graph of this function intersect the x-axis? a.) 3 b...

**SCIENCE HELP ASAP! :)**

Tell ur mommy to check it

**SCIENCE HELP ASAP! :)**

Do your own "Homework"!

**social studies**

OK.

**social studies**

during the early 1800s, the United States tried to make peace with countries in order to grow and develop. Give an example of one of these peace efforts and briefly explain what it hoped to accomplish. Can I use or write about the Louisiana Purchase?

**social studies**

during the early 1800s, the United States tried to make peace with countries in order to grow and develop. Give an example of one of these peace efforts and briefly explain what it hoped to accomplish.

**cyber-bullying**

Thanks !

**cyber-bullying**

Charles sends Julia text messages every morning insulting her appearance and threatening to hurt her. He writes unflattering description of her on blog and on his own personal website a. identity theft b. cyberstalking c. online arguing d. cyberbullying **** What is the best ...

**math 1**

1,350

**social studies**

During The early 1800s, the US tried to make peace with other countries in order to grow and developed. Give 2 examples of these countries and what the US hoped to accomplish.

**Science**

43Lb has a half life of 42 minutes. If you start with 100 grams, how many grams will you have after 84 minutes?

**trig**

write a formula f*g*h when f(x)=x+1, g(x)=3x, h(x)=4-x

**physics**

A pelican ﬂying along a horizontal path drops a ﬁsh from a height of 4.3 m. The ﬁsh travels 8.3 m horizontally before it hits the water below. What was the pelican’s initial speed? The acceleration of gravity is 9.81 m/s 2 . Answer in units of m/s

**culturally diverse**

CAN SOMEONE CHECK MY ANSWER

**culturally diverse**

D. native american cultures

**science**

Describe the two most important events in the history of animal life that occurred at the beginning and at the end of the Paleozoic era. (2 pts) List and briefly outline the six different periods into which the Paleozoic era is divided. (6 pts)

**Math**

idk man I got the sameeeeee question yo!! lets havre a hotdog together BOIIIII XD

**General Physics 2**

A dead battery is charged by connecting it to the live battery of another car with jumper cables. Assume that V = 9 V and R = 0.80 Ù. Determine the current in the starter. Determine the current in the dead battery.

**Physics**

Consider two straight conductors of length 0.9m, carrying current of 19.9A and 12A respectively. If they are placed 0.3m apart, what is the value 10^6 ×F, where F is the magnitude of the force (in N) between these two conductors. Express the answer with one decimal place.

**Algebra 1**

THE PRODUCT OF G AND 2 IS LESS THAN OR EQUAL TO 6

**Chemistry**

What is the compound formula for Cation: Na+ and Anion: CN-

**chemistry**

The radius of a aluminum atom is 143 pm. How many aluminum atoms would have to be laid side by side to span a distance of 4.90 mm?

**chemistry**

are these two statements true? (a/b)^x = a^x - b^x and (x^a + x^a+b) / (1+x^b) = x^a

**Chemistry**

When 25.302 is divided by 56.743, the answer should be reported to ____ significant digit(s). The result of the division, 25.302 / 56.743, reported to the correct number of significant digits is _______ When 56.743 is subtracted from 25.302, the result should be reported with ...

**Algebra**

Find the coordinates of the vertex and determine whether the graph opens up or down. y=-x^2+x-5

**Statistics**

A certain lottery is won by selecting the correct four numbers from 1,2....30. The probability of winning if the rules are changed so that in addition to selecting the correct four numbers you must now select them in the same order as they are drawn?

**Physics**

Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.

**Probability**

If I have a bag filed with 6 marbles, 2 blue marbles, and 4 yellow marbles, and I had to pick one from the bag, what is my sample space?

**Probability**

If I have a bag filed with 6 marbles, 2 blue marbles, and 4 yellow marbles, and I had to pick one from the bag, what is my sample space?

**Probability**

If I have a bag filed with 6 marbles, 2 blue marbles, and 4 yellow marbles, and I had to pick one from the bag, what is my sample space?

**Chemistry**

Calculate the volume of 1.0 M copper(II) sulfate solution required to completely react with 1.0 g of Fe(s) according to this equation: 2 Fe(s) + 3 Cu^2+ (aq) --> 2 Fe^3+ (aq) + 3 Cu (s). the copper in the reactant has a charge of 2+ and the iron in the product has a charge ...

**Anatomy and Physiology II**

1. Which answer below includes all the phases of respirations? A. Breathing, pulmonary ventilation, gas transport, and cellular respiration B. Pulmonary ventilation, external respiration, internal respiration, and gas transport C. Inhalation, external respiration, gas ...

**Anatomy and Physiology II**

A 45 year-old female has thyroid disease. Because specific prosperities of the thyroid gland classify it as an endocrine organ, you conclude that this disease is an endocrine disease. Which answer below best describes the properties that classify the thyroid as an endocrine ...

**math**

1.) $850 plus 8% on sales of $8,000 2.) $1,200 plus 4.5% on sales of $6,500 3.) You purchase 9 1/2 yards of fabric at $11.00 per yard. If there is a 7% salesb tax, what is the total cost of the fabric

**Principles of Management**

Riya, a manager, calls a meeting of her subordinates to tell them about the new benefits package.Riya is performing the _______role. A. Disseminator B. Monitor C. Spokeperson D. Negotiator My answer: A 2nd question: Namibia has a law that prohibits foreign companies from ...

**Math**

2/12x-3/12=8/12 A. x=5/2 B. x=11/2 C. x=11/12 d. x=11/6 My answer: B

**Anatomy and Physiology**

Which answer below includes all the phases of respiration? A.Beathing,pulmonary ventilation,gas transport, and cellular respiration B.Pulmonary ventilation, ecternal respiration, internal respiration,and gas transport C.Inhalations, ecternal respiration, gas transport, and ...

**Peinciples of Management**

a 31 year old female contracted HIV human immunodeficiency syndrome) Ordinarily harmless infections are deadly to her. Which answer below best explains how her antibody-response (b cell immunity) became weakened even though HIV primarily infects cells involved in T cell ...

**Medical Terminology**

Your boss expects you to stay late to cover the workload of a coworker who is out sick,but you are supposed to help your mother with some work on her house tonight. your are suffering from: 1. role overload 2. role conflict 3. role ambiguity 4. learned helplessness My answer: ...

**Biology**

Acrostic of the. Anaerobic

**chemistry**

oh ok

**chemistry**

thanks anyways

**chemistry**

you cant prove a thing!!!!!

**chemistry**

i don't know what you are talking about.

**chemistry**

Which of the following is not an example of a science? geology astronomy astrology ecology

**Science**

Sarah heated two cubes of aluminum to 50 degrees celsius. Cube B has a volume of two cubic centimeters. If the cubes do not touch each other, which of these statements is true? A. Cube A has a higher temperature than cube B. B. Cube B has a higher temperature than cube A C. ...

**health**

Milk

**psychology**

how has the definition of social faciliation evolved over time

**math**

zoomer bix plans to but a microcomputer that costs $690, excluding sales tax. if the sales tax rate is 5 1/2% how much tax will zoomer have to pay

**math**

3 - 2 x _____ = 1 ? please explain how to answer

**math**

x+3+7=5(x-4) solve for x?

**CHEMISTRY**

Use the Nernst equation and data from Appendix D to calculate Ecell for each of the following cells. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4. (a) Mn(s) | Mn2+(0.11) M || Cr3+(0.24 M), Cr2+(0.11 M) | Pt(s) ____________ (b) Mg(s) | Mg2+(0...

**CHEMISTRY**

cell diagram:H2(g,1atm) Pt Enter part(a), (c) with 2 siginificant digits and part(b) with 3 siginificant digits. Enter scientific notation as 1.23E4. (a) What is Ecell if the unknown solution in the half-cell on the left has pH = 4.94? ____________ (b) What is Ecell if the ...

**CHEMISTRY**

Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may represent C9H7NH+ as ...

**CHEMISTRY**

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization reaction upon which ...

**CHEMISTRY**

The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1 atm) half-cell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on the next page. (a) ...

**social studies**

Which of the following nineteenth-century inventors is associated with Menlo Park in New Jersey a.Gustavus F. Swift b.Cyrus W. Field c.Alexander Graham Bell d.Thomas Alva Edison

**social studies**

If you were a reform-minded person who, above all, loathed the social problems associated with alcohol, you would have been especially sympathetic to the

**Physics**

To find the KE of the ball at the highest ball of motion, we have to use the initial velocity and angle to find the horizontal velocity. V(horizontal) = V(initial) * cos(theta) V(horizontal) = (57 m/s) * cos(10.2) V(horizontal) = 56.099 m/s Using the velocity in the horizontal...

**Physics**

A speed skater moving across frictionless ice at 9.0 hits a 5.1 -wide patch of rough ice. She slows steadily, then continues on at 6.4 . What is her acceleration on the rough ice?

**advanced algebra**

ms. driva reck drove from her home to a service station at 48 km/h. she returned home by bike at 16 km/h. the entire trip took 4 hours. How far was the service station from ms. reck's home?

**3rd grade Math**

2468101214161820222426283032343638404244464850525456586062646668707274767880828486889092949698100

**Physics**

120N

**chemistry**

Which of the following elements is synthetic? uranium iodine helium nobelium

**chemistry**

How many electrons are in the outermost principal energy level of an atom of nitrogen in the ground state?

**chemistry**

all of these wrong.

**MEDICAL RECORD**

WHAT IS THE PROCESS FOR HANDLING CLINICAL DAT THAT A DOCTOR NEEDS TO SEE AND WHAT IS THE PROCESS FOR HANDLING ADMINISTRATIVE DATA THAT A DOCTOR DOES NOT NEED TO SEE

**maths**

Can someone help please? A circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen

**maths**

i have worked out the diameter of the umbra to be 25 cm, is this correct?....

**maths**

please help A circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen

**math**

a circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. Ascreen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen. Ok, I have drawn a sketch and can say that the ...

**math**

thanks for your help

**math**

Need help..... A child of height 1.2 metres stands 3 metres from the foot of a lamp post of height 2.8 metres, at the top of which there is a small source which can be considered as a point. What is the length of the shadow cast by the child upon the ground?

**physics-please help**

could i have a clue or a starting point please?

**physics-please help**

can someone help? i am really struggling

**physics-please help**

is it D/5.8= 1.2/2.8 D= (5.8x1.2)/2.8 D= 2.48m ??

**physics-please help**

A child of height 1.2 metres stands 3 metres from the foot of a lamp post of height 2.8 metres, at the top of which there is a small source which can be considered as a point. What is the length of the shadow cast by the child upon the ground?

**following previous question**

thank you

**following previous question**

would what the nature of the shadow on the floor be if the point of source of light is replaced by a luminous disc of diameter 5 cm, whose centre lies directly above the centre of the card?

**OPTICS/PHYSICS-REALLY DO NOT UNDERSTAND THIS!**

thank you what would the dimension of shadow be?

**OPTICS/PHYSICS-REALLY DO NOT UNDERSTAND THIS!**

thank you would what the nature of the shadow be if the point of source of light is replaced by a luminous disc of diameter 5 cm, whose centre lies directly above the centre of the card?

**OPTICS/PHYSICS-REALLY DO NOT UNDERSTAND THIS!**

WHAT DOES PI STAND FOR?

**OPTICS/PHYSICS-REALLY DO NOT UNDERSTAND THIS!**

THANK YOU!

**OPTICS/PHYSICS-REALLY DO NOT UNDERSTAND THIS!**

A POINT SOURCE OF LIGHT IS PLACED 50 CM ABOVE A CIRCULAR CARD OF DIAMETER 5CM, THE SOURCE BEING DIRECTLY ABOVE THE CENTRE OF THE CARD. WHAT IS THE AREA OF THE SHADOW ON THE FLOOR 70 CM BELOW THE CARD?

**OPTICS**

PLEASE HELP! A POINT SOURCE OF LIGHT IS PLACED 50 CM ABOVE A CIRCULAR CARD OF DIAMETER 5CM, THE SOURCE BEING DIRECTLY ABOVE THE CENTRE OF THE CARD. WHAT IS THE AREA OF THE SHADOW ON THE FLOOR 70 CM BELOW THE CARD?

**maths/physics**

PLEASE HELP! A POINT SOURCE OF LIGHT IS PLACED 50 CM ABOVE A CIRCULAR CARD OF DIAMETER 5CM, THE SOURCE BEING DIRECTLY ABOVE THE CENTRE OF THE CARD. WHAT IS THE AREA OF THE SHADOW ON THE FLOOR 70 CM BELOW THE CARD?

**maths/physics**

PLEASE HELP! A POINT SOURCE OF LIGHT IS PLACED 50 CM ABOVE A CIRCULAR CARD OF DIAMETER 5CM, THE SOURCE BEING DIRECTLY ABOVE THE CENTRE OF THE CARD. WHAT IS THE AREA OF THE SHADOW ON THE FLOOR 70 CM BELOW THE CARD?

**science**

980

**nonfiction**

D. Know thyself