# Posts by alyssa

Total # Posts: 864

**Physics**

There is current of 115 pA when a certain potential is applied across a certain resistor. When that same potential is applied across a resistor made of the identical material but 30 times longer, the current is 0.044 pA. Compare the effective diameters of the two resistors. d2...

**Physics**

A 14.1 μF capacitor is charged to a potential of 45.0 V and then discharged through an 80.0 Ω resistor. (a) How long after discharge begins does it take for the capacitor to lose 90.0% of the following? (i) its initial charge in seconds (ii) its initial energy in ...

**Math**

2.75 - 0.33 = 2.42 miles on the bus 2.42 * 2 = 4.84 miles 4.84 is the final answer Nick

**Language Arts**

1. Part A - C Part B - A 2. D 3. I think the two sound devices that are given in the poem are alliteration and repetition. Alliteration is used, noticeably, in the first line. “Full fathom five thy father lies;”. Notice the letter “F” is constant? ...

**Physics**

A 500 g sample of gold heated to 971.0 deg. C is placed in a calorimeter containing 220 g of water initially at 20.0 deg. C. If no heat is lost to the surrounding environment what will the final temperature of the water be? [HINT: At the end, the sample will be in thermal ...

**Physics**

A cylinderical brass rod with a radius of 2.10 cm and length of 1.50 m is placed in a fire with temperature of 490 deg. C. If the other end of the rod is at a temperature of 33 deg. C, what is the rate of heat transfer through the rod (ignore any heat loss from the sides of ...

**P**

A 500 g sample of gold heated to 971.0 deg. C is placed in a calorimeter containing 220 g of water initially at 20.0 deg. C. If no heat is lost to the surrounding environment what will the final temperature of the water be? [HINT: At the end, the sample will be in thermal ...

**Physics**

A styrofoam cooler is a cube with side length of 20.0 cm and walls with thickness of 1.9 cm. If the external temperature is 27.0 deg. C and the cooler contains ice and water at 0 deg. C. How much heat is transferred into the box in 24 hours? - I got 2.95x10^5 J for this and it...

**Math**

The quick check answers: 1. A and C 2. B 3. A and C 4. D 5. D 100% for Connexus students.

**Physics**

I have a few physics questions that I don't understand. Two are thermal expansion problems and the other is an ideal gas law problem. 1. Two rods, one made of iron and the other of aluminum, have the same initial length at 64.00 deg. C? When the temperature drops to 4.00 ...

**math**

idk the answer

**Art**

Quick Check answers for Connexus Students. 1. B 2. C 3. D 4. A 100% Hope this helps.

**Math plz help one qustion only!!!!!!!!!!!!!!!!!!!!**

Answers for the Quick check for Connexus Students. 1. B 2. C 3. A 4. D 100% Hope this helps.

**Language**

Answers: 1. A 2. B 3. C 4. D Trust me. 100% correct for Connexus students. I got a 4/4.

**Physics**

Charge A, +1 μC, is positioned at the origin of a coordinate system as shown below. Charge B, −1 μC, is fixed at x = 3 m. (a) Determine the magnitude and direction of the force that charge B exerts on charge A. (b) What is the force that charge A exerts on ...

**Physics**

Charge A, +1 μC, is positioned at the origin of a coordinate system as shown below. Charge B, −1 μC, is fixed at x = 3 m. (a) Find the electric field on the x axis at x = 6 cm. (b) At what point on the x axis is the electric field zero?

**Physics**

(a) Estimate the positive charge in you due to the protons in the molecules present in your body. (Assume that the human body is made entirely out of water.) (b) What is the net charge in your body?

**Physics**

Tarzan (80 kg) runs toward a vine at 4.8 m/s where Jane (60 kg) is hanging on. He jumps and grabs the vine. How high does the vine swing? If the vine is 25 m long, how much of an angle does that make?

**physics**

A 10 kg mass moving at 6 m/s strikes a stationary 2 kg mass in an elastic collision. Determine the velocity of each after the collision. 10(6)+2(0)=(10)Vf1+(2)Vf2 60=(10)Vf1+(2)Vf2

**Algebra**

A colony of bacteria has a population of ten initially, and doubles in size every three hours. What is the population of the colony after 24 hours of growth ?

**Language Arts**

1.C 2.A 3.D 4.B 100%

**us history**

is it the rewriting of the preamble

**us history**

so what is the correct answer

**u.s. history**

is it"Colonial America offers religious freedom." @Ms. Sue

**History**

What is the first questions answer?

**geometry**

two boards make up two sides of triangular sandbox 8ft and 5 ft what size board makes third side? I say 5 because this makes an isoles triangle

**Geometry 12**

F is the center point. I have the same question and I'm really confused.

**Math**

I am a common multiple of 8 and 2. I am greater than 50 and my digits are 3 apart. What am I?

**Writing**

Just look back in the story to answer this essay!

**Physics**

Damon, thanks but is that for A or B and what is the answer, please star it or underline it or something that it shows the final answer for it.

**Physics**

A set of density rods is designed to illustrate the concept of density. The idea is to create cylinders of equal diameters and masses, but varying lengths, to show which have the largest and smallest densities. (a) Derive a formula that will predict the ratio of the length of ...

**multiple choice economics**

D. A good that is perceived as a necessity will be purchased even if the price rises. People will buy anything if it is a necessity like bread, milk or gas for their car, no matter how much money it costs.

**Physics**

They also said Derive a formula that will predict the ratio of the length of one rod to the length of another rod. Assume the radius and mass of each cylinder is the same and express your answer in terms of the specific gravity of each rod. (Use the following as necessary: SG1...

**Physics**

Density of lead is 11.36g/cm3 and density of brass is 8.553g/cm3 but I was not given the lenghts of anything. The info above was the only thing given to me.

**Physics**

How do I do that to answer my question?

**Physics**

A set of density rods is designed to illustrate the concept of density. The idea is to create cylinders of equal diameters and masses, but varying lengths, to show which have the largest and smallest densities. How do I do it?

**Physics**

If you want to design a set of five density rods (made of aluminum, iron, copper, brass, and lead), determine the ratios of the lengths of each rod to the length of the lead rod, the densest material in the group. The specific gravities of the elements are approximately SG ...

**spanish**

I have the same question and I don't know the answer! can you help me?

**Math (Algebra)**

Two groups went to the movies. The first group included 3 adults and 5 kids and paid a total of $71. The second group included 5 adults and 3 kids and paid a total of $81. If ticket prices were the same for each group, find the cost of each type of ticket.

**health**

it's B all the way!

**Math**

Thank you.

**Math**

would the answer be: A=1*W 18x24 = 432

**Math**

How many 1 inch squares can be cut from an 18"x24" piece of contruction paper

**Physics**

A spring that has a spring constant of 150 N/m is oriented vertically with one end on the ground. (a) What distance does the spring compress when a 4-kg object is placed on its upper end? in m. (b) By how much does the potential energy of the spring increase during the ...

**History**

what was 14?

**chemistry!!!!!!!!!**

at 20°C the concentration of O2 in the air is 8.65 x10-3 mol/L. what us the minimum volume of air in litres that are required to completely combust on e litre of gasoline at 20°C? Assume the gasoline is octane which has a density of .703 g/mol at this temperature. The ...

**Physics**

At t=0 a particle leaves the origin with a velocity of 5.0 m/s in the positive y direction, its acceleration is given by a=3i-2j m/s^2 At the instant the particle reaches its maximum y coordinate, how far is it from the origin? I'm not sure how to do a question like this, ...

**science**

I have a question from an old exam that I need help to understand, i'm not sure where to start An electron in an electronically excited hydrogen atom undergoes a transition from a 6d to a 2p orbital, resulting in the emission of a photon. The photon strikes a metal surface...

**Chemistry**

I have a metal sheet of indium, and when a uv light with a wavelength of 265 nm is shone on it the surface ejects electrons that have a kinetic energy of 8.31x10^-20 J per ejected electron. I'm asked to find the threshold frequency, I need to know how to find it.

**chemistry**

Mercury and gallium

**science**

The concentration of sodium chloride in ocean water is on average 0.060 M. What mass of sodium chloride is present in 25 L of ocean water? How do I answer this question, I have no idea where even to start.

**biology**

why is anaphase the shortest stage in the cell cycle?

**Algebra**

a). The length of the classroom is 30 ft. The length of the room on the scale drawing is 6 in. Is this correct? Explain why or why not. Michael has made a scale drawing of his classroom. The scale for his drawing is 0.5 in. : 3 ft. b). One of the student tables is 6 ft long. ...

**Social Stuides**

I forgot to include my URL's, sorry. (Use website prntscr dot com) 8lje58 And 8ljefd

**Social Stuides**

Write a paragraph telling how each excerpt below reflects U.S. values and the conflicts between ideals and reality.

**Physics**

Using GRAPHICAL METHOD, find the vector sum of a force of 20 N directed 60 degrees east of north and a force of 60 N directed west? Please show all steps and equations used.

**Physics**

"a vector r has a magnitude of 18 units and makes a 30 degree angle with respect to the x axis. find the vector components of r using a protractor and some graph paper to verify your answer by drawing r and measuring the length of the lines representing its components.&...

**Physics**

An object travels with a constant acceleration for 10 s. The vectors in Figure 3-41 represent the final and initial velocities. carefully graph the x component of the velocity versus time, the y component of the velocity versus time and the y component of the acceleration ...

**Physics**

An object travels with a constant acceleration for 10 s. The vectors in Figure 3-41 represent the final and initial velocities. carefully graph the x component of the velocity versus time and the y component of the acceleration versus time, in a Vx vs t graph, a Vy vs t graph ...

**financial literary**

$8640

**Algebra**

A Car is moving at an average speed of 60 km/h. Find the algebraic expression for the kilometer it would travel in y minutes. Comment on this question: Hello, for me, algebra is one of the hardest subjects at school. Most of the time I read a question over and over again but I...

**Physics**

A black mamba snake has a length of 4.3 m and a top speed of 8.9 m/s! Suppose a mongoose and a black mamba find themselves nose to nose. In an effort to escape, the snake accelerates at 20 m/s2 from rest. (a) How much time does it take for the snake to reach its top speed? (b...

**Physics**

A jet takes off from SFO (San Francisco, CA) and flies to YUL (Montréal, Quebec). The distance between the airports is 4100 km. After a 0.81-h layover, the jet returns to San Francisco. The total time for the round-trip (including the layover) is 13.9 h. If the ...

**Physics**

A Bugatti Veyron 16.4 can accelerate from 0 to 60 mi/h in 2.4 s. The Saleen S7 Twin Turbo goes "from 0 to 60" in 2.8 s. Determine the distance that the Bugatti Veyron would travel in the time it takes to reach 75 km/h, the speed limit on many Canadian roads. Compare ...

**Math**

Deshawn and Luke had an equal number of stickers. After Deshawn used 26 stickers and Luke lost 38 stickers,Deshawn had twice as many stickers as Luke. How many stickers did each of them have?

**math**

Find the simple interest and the final value of the deposit that earns the given rate for the indicated length of time. Round your answers to the nearest cent. $8439 earning 8% for 1.4 years ?

**math**

The cost C in dollars of having an electrician come to your house to do a repair job in h hours if he charges $16 for coming to the house and $30 for each hour.

**Mathematics**

I subtracted the $320.09 by $11.20 but I wasn't sure so I added all the deductions and subtracted that by the $320.09..

**math**

I think it is c.

**math**

4d(2d-9) a.) 8d-36d b.) -d c.) -28d^2 d.) 8d^2-36d

**math**

-3m(m+8) a.) -3m^2 + 24 b.) 3m^2 - 24m c.) -24m^2 d.) -4m + 5

**math**

1. (9m + 6) + (–5m – 6) 4m + 12 14m + 12 14m – 12 4m 2. (3r^2 + 7r + 1) + (4r^2 – 8r – 2) 7r2 + 15r – 1 7r2 – r – 1 7r2 – 15r – 3 –r2 – r – 1 3. (6h + 1) – (9h + 4) –3h – 3 15h – 5 –3h + ...

**grammar**

Which best describes the underlined group of words? Then it was time for Karla, my sister's best friend, to fly home. my sisters best friend is underlined A. adverb phrase B. misplaced modifier C. appositive phrase D. adjective phrase i think its c

**science**

An electric stove transfers heat too a pot by a.) conduction b.) convection c.) radiation d.) friction

**math**

8000+695832=

**Math**

JAZZZZMIN is correct. :)

**math**

what is 3256/9

**Math**

A bag of five apples contains three ripe apples and two rotten apples. If a ripe apple is selected first, what is the probability that a second apple selected is rotten?

**Math**

Is this independent or not. Carlos tosses a coin that comes up heads. Jennifer tosses a coin that also come up heads.

**Math**

Math: Is this statement independent or not. Jordan stayed up late last night watching television. Jordan did poorly in his quiz in the morning.

**Chemistry**

Is Dr. Bob saying No/N=Kt After finding the constant (1.38?)=k 100/25=1.38t 4=1.38t 2.89=t ???? That's what I got and it doesn't seem right to me.

**Math**

How do I figure out what quadrilateral has 90 90 125 65 digrees on each side?

**math**

If you roll a pair of number cubes 50 times, what would be the experimental probability of P(odd and odd)

**science**

hello

**science**

hey is there anybody to talk to out there like ms sue

**math**

hello

**math**

hello can i talk to you

**math**

hey ms sue can i talk to you

**math**

what is 3,563-3,957

**math**

what is 236?/3

**math**

what is 3,563- 3,957

**math**

thanks you so much i made a 100.

**math**

what is 630/3

**math**

can any one help me?????????????????????????

**math**

60 people are coming to a event. 7 rows of seats. 8 seats in each row. what does the p represent?

**studio art**

Lesson 1, Unit 5. 1. C 2. D 3. B ^ For Connexus students.

**Pre-Calc**

I am really struggling with how to do these problems, I posted them a few minutes ago but the answers/work shown was incorrect. 1) a) Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number. cos 12° cos 18° − sin ...

**Pre-Calc**

Thank you so much but are those the expressions or exact answers for the first two problems?

**Pre-Calc**

1) Use an Addition or Subtraction Formula to write the expression as a trigonometric function of one number. cos 12° cos 18° − sin 12° sin 18° And Find its exact value. 2) Use an Addition or Subtraction Formula to write the expression as a trigonometric ...

**chemistry**

I have to do a lab on equilibrium, where you have to transfer water with two different sized straws, and answer questions based on that the questions are about the significance of where there is a flat line on the graph, and the significance of the point where the two lines ...