# Posts by Nicholas

Total # Posts: 159

**physics**

my answer

**physics**

A helicopter flies 65km [N32°E] then 42km[E 21°] determine the total displacement of the helicopter.

**Chemistry**

A student is given a 5.000g sample to analyze composed of tin metal with a small amount of a zinc impurity. The student dissolves the metal in concentrated nitric acid, allows the reaction to continue to completion, and heats the mixture to leave 6.341g of solid containing ...

**Math**

How many 250ml cups can I fill up if I have a 4 liter jar

**Geometry**

A gasoline truck is a cylindrical tank(think "sideways" cylinder) that is 20 feet long and 6 feet in diameter. At the end of his work day, the driver measures the depth of gasoline in the tank at 18 inches. How many gallons of gas are in the tank?

**Maths **

Ben gives 1/3 of his annual savings to charity he spends 3/5 of the rest on domestic bills. 1. What fraction of his savings does he spend altogether 2. Find the fraction of his savings left.

**Physic**

you have to push with a force of 200N to slide a refrigerator across a floor at constant velocity.What is the force of friction acting on the fridge?

**math**

Sebastian rides his bike 2,000 meters in five minutes. How many meters does he bike in 1 minute

**word problem**

Tamika is helping her father make shelves measuring 12x16" how many can be cut from a 48x72" piece of plywood so there is no waste?

**english**

Lmao, this person again

**Physics**

Two trains approach each other at a railroad crossing. Train 1 travels 80 km/h and Train 2 travels 50 km/h. They both sound their horns before passing each other, emitting sound waves at 300 Hz. The speed of sound is 343 m/s. At what frequencies does a person waiting at the ...

**Physics**

total mass = m1+m2 = 3 down force on m1 = 9.8 (m1.g) fric force on m2 = 2*9.8/4 = 9.8/2 (m2.g.mk, cuz mk = 0.25 = 1/4) net force = 9.8 - 9.8/2 = 9.8/2 a = net force/total mass = 9.8/2/3 = 1.6 :)

**science**

weight = mass * gravitational field strength. weight depends on location, mass does not. mass on mars IS THE SAME AS mass on Earth

**Science**

car: velocity = 20/2 m/s = 10 m/s momentum = mass * velocity = 3000*10 kg x m/s player: mass = momentum/velocity = 1120/10 = 112 kg.

**chemistry**

a graduated cylinder containing 75.0 mL of water has a mass of 149.86 g. A piece of metal is added to the cylinder and the volume of the water changes to 86.3 mL. The mass of the graduated cylinder, water and metal rises to 218.90 g.

**Economics**

1000 + 0.75*50,000 = ... Your answer is wrong! Use a calculator or a spreadsheet if you can't do it by hand!!!

**English,sepedi,agriculture,physical sciences,lifesciences,maths & life orientation**

Please can you help about my research project?i need your help.

**English**

3 is c

**English**

100% correct

**math**

5000

**Math**

You do 45 divided by 9 to get 5 which is denominator of 3/5, and then 9 x 3=27.

**English**

Black mans speaking LOL Answer is C

**chemistry**

How many grams of bismuth (III) chloride can be produced from 575 mL of chlorine gas at STP when reacting with excess bismuth metal?

**Technical writing**

LOL....

**English**

Got it wrong by choosing B. What a pain.

**English**

Reed, how annoying. Wish it'd be as simple as C. I will be selecting B and will be confirming if this is the correct answer with a follow up message soon.

**ENGLISH**

Confirmed B is correct.

**Algebra**

9!-6!/ (9-3)!

**Physics**

A 6.08 kg box sits on a ramp that is inclined at 37.4 ∘ above the horizontal. The coefficient of kinetic friction between the box and the ramp is 0.30. What horizontal force is required to move the box up the incline with a constant acceleration of 4.30 m/s2 ?

**Mathematics , business studies , economics , geography**

human resoure management

**English**

I'll be the sacrifice and choose C then. I will report back tomorrow to let you all know if I got the question wrong.

**English**

C. Parson Brown said we’re all our brothers keepers.

**English**

A. Parentheticals aren’t crucial to the meaning of a sentence.

**Science**

An elevator lifts 5 passengers 30 meters in 24 seconds. The power is 15,000w. What is the total weight of the elevator and passengers?

**English**

A is wrong. I don't care for the right answer anymore.

**English**

I have this question as well. I'll provide the answer after I take the test. If B and D are incorrect according to Ms. Sue, and Commas is wrong according to Atlay's teacher. That leaves only A, dashes. I'll follow up tomorrow.

**english**

A is the correct answer.

**geography**

what is the term for "products of the human imagination that please and entertain us and teach a cultures values"

**Mathematics**

here's what i have so far but i think it's wrong: s/d+e = 7.0 s=7d +7e n/e = .80 n= .80e .80e/(7d + 7e) if that's even correct, i do not know. but if it is, then i get confused because i know d + e = a, but i don't know what to do with the 7s in front of d and ...

**Mathematics**

Assume that S/A = 7.0, D/A = .40, N/E = .80 and A = D + E. Solve for N/S. I'm lost. Does anyone have any tips? Thank you.

**Algebra 2**

Simplify the Expression. 2m^2 - 5n^2 + 6n^2 - 8m

**ethics and moral reasoning**

Robinson describes magnanimity as the mean between the extremes of

**English**

The answer is C.

**English**

C is correct.

**English**

Confirmed A to be correct.

**English**

The answer is C, for chrissake.

**English**

Confirmed D to be correct.

**English**

Confirmed D to be true.

**English**

Confirmed B to be the right answer.

**English**

A is correct.

**English**

Confirmed B to be the WRONG answer.

**English**

Got this one wrong as well. What a drag.

**Chem**

Please help how to set up How many grams of CuSO4 * 5H2O are needed to prepare 100.ml of a 0.10 M solution?

**English**

Confirmed the answer is C.

**English**

Question left open, I have selected C. I'll keep Jishka updated if this was correct or not.

**English**

Confirmed the answer is A.

**English**

Confirmed the answer is B.

**English**

Ms. Sue You're such a savior. Thank you. By the way. The answer is A.

**English**

Had a good laugh at that one Ms. Sue, Confirmed the answer is A.

**chemistry**

8.22 g of CuNO3 is dissolved in water to make a 0.590M solution,what is the volume of the solution

**English - help Poe**

AAC IS CORRECT

**Math**

We the people of the United States in order to form a more perfect union establish justice insure domestic tranquility provide for the common defense promote the general welfare and secure the blessings of liberty to ourselves and our posterity do ordain and establish this ...

**algebraI**

192

**ap physics**

A spherical comet of mass m and diameter is d, travelling at velocity v enters a cloud of stationary cosmic meteoroids (small rocks). The average density of the cloud is p. When a meteoroid impacts the comet it adheres to its surface. As a result the comet slows down and after...

**math**

Thank you Steve! :)

**world history**

What are two positive and negative and things about civilization

**math (please help!)**

But that answer is wrong!

**math (please help!)**

What is the sum of all the constants k such that |x^2−169|−x−k=0 has three distinct real roots?

**math**

Thank you.

**ela, english**

TRUE OR FALSE: It is imperative that you pace yourslef because of a test is timed?

**american history**

For revolutionaries like Sam Adams, what term embraced a way of life, a core ideology, and an uncompromising commitment to liberty and equality.

**Algebra**

Find the balance in the account, 4,000 principal earning 6% compounded annually after 5 years.

**math**

4 sisters share 3 pies equally what fraction do they get

**Geometry**

For what values of x and y musy ABCD be a parrallelogram

**math**

A type of bacteria reproduces by splitting in two every thirty minutes. How many bacteria will there be after 4 hours if there are 2 bacteria to begin with?

**6th grade math**

Can't figure this math problem out: Write an algebraic expression for the product of five less than a number and three, less eight, is twenty-eight. HELP ME PLEASE!!

**Math**

What are the least and greatest numbers written in the hundredths that could round to 164.8 and explain your answer?

**Math**

A garden against the wall of a house is to be surrounded on three sides by a total of 336m of fencing. What dimensions of the garden will result in an area of 14,112m^2?

**intermediate algebra**

solve each formula for the specified variable, y-y^1 = m(x-x^1) for x

**calculus**

A force of 13 N is needed to keep a spring with a 2-kg mass stretched 0.25 m beyond its natural length. The damping constant of the spring is c = 8. If the mass starts at the equilibrium position with a velocity of 0.5 m/s, find its position at time t.

**Mathematics**

320

**Chemistry**

The above is incorrect and finds ratio chalcopyrite to ore. Not Cu to ore.

**Science**

A boy exerts a force of 15N to push a motor bike which has flat tyre for a distance at 30m.calculate the mass of the motor bike. Calculate the density of the motor bike.calculate the work done by the boy.[take g=10m|sm2

**Science**

A boy exerts a force of 15N to push a motor bike which has flat tyre for a distance at 30m.calculate the mass of the motor bike. Calculate the density of the motor bike.calculate the work done by the boy.[take g=10m|sm2

**chemistry**

I balanced an equation between lead(II) nitrate and potassium sulfate and ended up with: Pb(NO3)2 + K2SO4 --> PbSO4 + 2 KNO3 If 0.87 moles of potassium sulfate react with an excess amount of lead(II) nitrate, how many moles of lead(II) sulfate would be formed? I know I ...

**physics**

a car mass 100kg is moving up on incline of 15 degrees with horizontal.the enginr of the car applies a force of 5000n the confficient of kinetic friction between the surface of th tyic and road is 0,2.draw a free body diagram showing all the forces actin on the car

**American Literature**

I am writing a critique for my American Literature class on The Great Gatsby and I am so stuck. I don't know exactly how to prove my thesis. I need four different points. My thesis: Gatsby achieves the American dream by becoming quite successful; however, achieving the ...

**Social Studies**

What countries in South America have the highest elevation?

**Reading**

lol yes it is

**Reading**

Its really line 15

**algabra**

cubes 1 and 2 are similar if the volume of cube 2 is 45 and the scale factor between sides of the two is 2:3 what is the volume of cube 1?

**Chemistry**

CO2(g) + 2 NH3(g) CO(NH2)2(s) + H2O(g) What volumes of CO2 and NH3 at 193 atm and 450.°C are needed to produce 2.54 kg of urea, assuming the reaction goes to completion?

**math**

what is the answer240/20multiply6-13plus41

**Statistics**

An urn contains 8 chips, numbered 1 through 8. A sample of 3 is drawn without replacement. What is the probability that the largest chip in the sample is a 5?

**math**

You are given the probability of event E. Find the odds in favor of event E and the odds against event E. a. 1/8 b. 2/5

**math**

Sabino took the ACT in 2003 and received a composite score of 22. If the mean and standard deviation for that year were, respectively, 20.8 and 4.8, what percent of all of the students who took the exams scored better than him?

**math z-score**

Henry's z-score on his reading test was 1.27. The class average was 60, the median was 58.5 and the variance was 6.2. What was Henry's "raw" score (his score before converting to z-scores)

**medical assisting**

imformation should include____________,_____________, and ________, procedures

**PPPPPhysicssssss**

kinda need it.......... assignment is due in 15 minutes....