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sarah
Questions (1,217)
A child is standing on a platform of a station.
A train travelling at 30m/s takes 3.0 secs to pass the child.What is the length
6 answers
9,307 views
If a 648 N body on a carpeted surface has a μs of 0.86 and a μk of 0.68, what amount of force will be required to start
1 answer
431 views
If a 648 N body on a carpeted surface has a μs of 0.86 and a μk of 0.68, what amount of force will be required to start
1 answer
392 views
Karen collects 6/7 quart of rainwater. she uses half to clean her bicycle and uses the remaining to equally water 3 plants
1 answer
618 views
A 1300-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 17.0 m/s. The cars are stuck together. How fast
1 answer
1,365 views
A compact car, mass 730 kg, is moving at 1.00 ✕ 102 km/h toward the east. The driver of the compact car suddenly applies the
1 answer
2,864 views
A 1300-kg car moving north at 27.0 m/s is struck by a 2165-kg car moving east at 17.0 m/s. The cars are stuck together. How fast
2 answers
601 views
If a railroad car was moving and stroke another car at rest and the two cars then become attached by a special hitch. Does the
1 answer
510 views
Consider a railroad carmoving and striking another car at rest. The two cars then become attached by a special hitch. Does the
0 answers
371 views
A hairstlist schedules 1/4 hour to trim a customers hair and 1/6 hour to style. The hairstylist plans to work 3 1/3 hours each
2 answers
526 views
Mark and job are basketball players and will play a game. In the game, Mark will get 2 free throw attempts and John will get
0 answers
615 views
how to do sight words flashcards?
I can me I can see the color Me and my daddy are going to the park I can dance bally
3 answers
611 views
Convert Q = 17(0.887)^1.2t to the form
Q = ae^kt Round all calculated values to three decimal places Q = ? My answer was
2 answers
626 views
what is the symbolism and theme in the story Royally Crushed by Niki Burnham? I need it for an essay and I'm having trouble with
0 answers
459 views
an alkane formula c8h18 can form only three monochlorination products give its structure
0 answers
622 views
Checking the weather. 60% chance of rain at the bears football game. In the past, when it rains, bears win ,44% of the time and
1 answer
574 views
An airplane with a speed of 85.4 m/s is climbing upward at an angle of 37.6 ° with respect to the horizontal. When the plane's
0 answers
547 views
You are driving a 2530.0-kg car at a constant speed of 14.0 m/s along a wet, but straight, level road. As you approach an
2 answers
940 views
a circular maize field has a radious of 200m.what is the length of the fence around this field?
1 answer
565 views
a pitched ball is hit by a batter at a 45 degree angle and it just clears the outfield fence, 110m away. If the fence is at the
1 answer
1,376 views
Suppose a 69-kg boy and a 42-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration
1 answer
644 views
A flagpole is supported by a wire that is 5m long. The wire is pegged 2.5m from the foot of the pole. Find the height of the
1 answer
511 views
Which statement best illustrate a logical tautology
1 answer
1,005 views
1. “To persuade my audience that drinking and driving laws should be stricter” aims for:
A. passive agreement with a policy.
1 answer
639 views
2. “To persuade my classmates that cheating in an exam is just as wrong as plagiarism” is a:
A. question of fact. B. question
1 answer
797 views
sum ((√(n-1))-(√(n-1)))/n, as n=1
0 answers
364 views
r=1- 3Sin theta¸ find the area enclosed by the inner loop
0 answers
788 views
Evaluate integral x/(1+|x|), (x,-3,3)
1 answer
359 views
find dy/dx and (d^2)y/(d^2)x for x=2sint y=3cost 0<1<2pi
1 answer
1,614 views
use the simpsons rule with n=10, arc length y=^3√x, for 1<=x<6
6 answers
443 views
at a restaurant brandy paid twice as much as Katie and Katie paid $3 more than Stephanie if the total combined amount they paid
1 answer
991 views
How do costs play into your everyday life? For example, why might it be cheaper to drive on a toll-road vs. a free-access
1 answer
403 views
How is the direct democracy similar to a representative democracy ? A. both types of government are run by a communist party.
5 answers
876 views
hi i new to this and i need help with some world history questions and i don't have a book and I've already researched it and i
11 answers
674 views
an animal i wanted for pet
1 answer
376 views
An Angry Bird sits on a clothes line midway between the two poles.
bird on line If the combined weight of the bird and rope is W,
2 answers
1,172 views
An aircraft has an initial mass of m0 and an initial acceleration of a0. After flying for 2 hours, the mass of the aircraft has
1 answer
1,395 views
A car travels around a bend of radius R at a speed v1, experiencing a centripetal acceleration ac. The car then travels around a
1 answer
631 views
initially 1 mol each of gaseous carbon dioxide, co2(g) and hydrogen h2(g) is inhected into a 10.0L reaction chamber at 986
3 answers
594 views
if you produce 5.7 of H2O, how many liters of O2 will be required?
1 answer
627 views
One kind of battery used in watches contains mercury(II) oxide. As current flows, the mercury(II) oxide is reduced to mercury.
Hg
4 answers
3,665 views
1. A 2.00 g sample of a particular compound was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution
1 answer
721 views
A 2.00 g sample of a particular compound was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution was
3 answers
2,433 views
The acid dissociation constant, Ka, for this reaction is given by the following formula (this is also in your book):
Ka=[H3O+][A�
1 answer
559 views
The chemical reaction for dissociation of an acid is:
HA + H2O → H3O+ + A- Assuming all of the hydronium ion (calculated in in
1 answer
1,223 views
The pH of a 0.00100 M solution of a particular acid is 4.95 at 25°C.
Use the solution pH to calculate the concentration of
1 answer
487 views
what is the final temperature when 3 pound of water at 100 degree fahrenheit is added to 500 lb at 40 degree fahrenheit
0 answers
622 views
A roller-coaster car of mass 1.80 103 kg is initially at the top of a rise at point circle a. It then moves 40.8 m at an angle
0 answers
865 views
True or False Rutherford Hayes won a landslide victory in the election of 1876.
I'm not sure if this statement is true or false
1 answer
676 views
Andrew Johnson’s plan for Reconstruction was based on
A. his strong belief in Negro suffrage B. his belief that Indians were
1 answer
532 views
Charice is painting the lines for her own basketball court. The free throw section will be a rectangle with a semi-circle on
2 answers
1,745 views
A storage tank has a radius of x + 5 metres and a height of x metres. Determine the dimensions of the tank if the volume is
1 answer
3,013 views
5/6 + 3/4 = 1/18 - 6c - 2/3 + 7c + 1/9
how do I get the answer?
1 answer
444 views
Consider a swimmer who wants to swim directly across a river as shown in the figure below. If the speed of the current is 0.29
1 answer
661 views
Four charges −8 × 10^−9 C at (0 m, 0 m),
−7 × 10^−9 C at (5 m, 1 m), −1 × 10^−9 C at (−2 m, −3 m), and 2 ×
1 answer
680 views
If 100.0 mL of 0.0025 M Na2SO4
(aq)is saturated with CaSO4 how many grams of CaSO4 would be present in the solution? [Hint: Does
0 answers
933 views
an ice cube that is 8 cm on each side is melting at a rate of 4 cm^3 per min. how fast is the length of the side decreasing?
1 answer
2,040 views
find the standard deviation for the following: 8,5, 12, 8, 9, 15, 21, 16, 3. There is a formula but our teacher wants us to do
1 answer
476 views
find the standard deviation for the following: 8,5, 12, 8, 9, 15, 21, 16, 3. There is a formula but our teacher wants us to do
2 answers
533 views
convert 3.0m to yd
1 answer
319 views
Why is the point 3,0 not considered to be in any of the quadrants?
1 answer
353 views
The temperature on one day in January for Phoenix, AZ, is 52 degrees Fahrenheit. On the same day in Barrow, AK, the temperature
2 answers
535 views
The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown
1 answer
473 views
I'm having a debate about marriage. & I'm arguing that people should have the right to marry who they please because church &
1 answer
475 views
5. A 0.500 g sample of a BaCl2•2H2O/Na2SO4 salt mixture, when mixed with water, filtered, and dried, produced 0.225 g of
2 answers
1,064 views
Can you help me solve for like terms:
x - 14y + 3x - 1 2 - 10x - 3 + y 19x - 3y - 37 - y
2 answers
480 views
This is an example question which I have the answer to but can not seem to get the same answer through my workings, any help
0 answers
474 views
A motorist travelling at 82 km/hr is being chased by a police car at 121 km/hr. If the police car starts from 4.0 km back, how
1 answer
466 views
what is a concave polygon using the classify and differentiate method
0 answers
473 views
At 4 pm, Jack who is 6 ft tall cast a shadow that is 4 1/2 ft long. At the same time, a nearby free cast a shadow that is 12 ft
1 answer
2,327 views
When point charges q1=+8.4uC and q2=+5.6uC are brought near each other, each experiences a repulsive force of magnitude 0.66N.
2 answers
1,238 views
When point charges q1=+8.4uC and q2=+5.6uC are brought near each other, each experiences a repulsive force of magnitude 0.66N.
0 answers
753 views
When point charges q1=+8.4uC and q2=+5.6uC are brought near each other, each experiences a repulsive force of magnitude 0.66N.
0 answers
721 views
In your leadership model, what are the a leader's most important task?
What are the core values that your leadership model
1 answer
496 views
what are the core values that your leadership model emphasizes?
In what ways does my leadership model reflect existing
1 answer
725 views
Can one calculate the number of moles of air? If so, calculate the number of moles in 1 kg of air (making sure your calculation,
8 answers
3,450 views
A 25.0 mL solution of HCl has been spilt. It took 21.8 mL of saturated 2.5 M NaOH to neutralise the acid. What was the molar
1 answer
352 views
complete the pattern : 1/2 , 3/4 , 1 , 4 , 4 , 4
2 answers
337 views
the iceman found recently in a glacier was a first thought to be about 5300 years old.Roughly when did he have his 14th
2 answers
764 views
if a number x is 10%of y and z,and z is 3 times of y.What % is x of y alone? 1)3.3% 2)2.5% 3)5% 4)4%
3 answers
269 views
complete the pattern:50,20,8,4,4,4.
1 answer
357 views
Why are some bodies of water in Russia unnavigable for part of the year?
They are frozen. They are too shallow. They are too
6 answers
1,278 views
a taut wire of length'w'emits a single note when plucked.if it were half as long it would emit the same note but one octave
2 answers
539 views
in the number 0.123451234512345......(recurring)what is the 1992th digit after the decimal point
1 answer
396 views
when tessa and fatima run a 100 metre race,tessa wins by 10m.then they repeat the race,this time with tessa starting 11m behind
2 answers
1,037 views
A GARDEN places some lilies in a pond.he does this on the first day of the month of september.the lilies double in volume every
2 answers
509 views
2 people start off to work directly away from each other.they each walk for 4 kms then turn directly to their right and walk for
3 answers
436 views
5 people measured a metal bar using the same measuing instrument,but each read the scale to a different level of accuracy.their
1 answer
540 views
a quiz has 25 questions with 4points awarded for each correct answer and 1 point deducted for each incorrect answer,with zero
1 answer
807 views
as a regular customer in my favourite restaurant,i get 10%discount.but to the cost of the meal must be +17.5%gstand 12%service
1 answer
565 views
it takes 3weeks to build a large garage.if it takes 2/3 of a week to construct the frame and 5/4 of a week to put the roof
2 answers
367 views
“Boys don’t cook.”
What type of rhetorical device or fallacy is this? :“…what are you doing in those overalls? You
1 answer
484 views
The older you grow the more of it you’ll see. The one place where a man ought to get a square deal is in a courtroom, be he
2 answers
877 views
"There's four kinds of folks in the world. There's the ordinary kind, like us and the neighbours, there's the kind like the
1 answer
766 views
to kill a mockingbird movie analysis question.
1) how does the lack of eye contact show Mayella is lying? Why is she lying? How
1 answer
416 views
OMG I CAN NOT get this !!!!
Purchase price of article = $495 Down payment = $50 Number of payments = 36 True annual interest rate
0 answers
888 views
When I worked this problem out I got the answer $250.80. It was graded wrong.
Can you explain what I did wrong. A deposit of
1 answer
429 views
When I worked this problem out I got the answer $250.80. It was graded wrong.
Can you explain what I did wrong. A deposit of
1 answer
466 views
Loan Amount: $15,000
Method of payment: discount basis Amount of Interest : $650 Term of loan: 1 year Effective Rate of Interest
1 answer
1,473 views
Number of dinners = 125
Individual portion = 8 oz. Size of can = 32 oz. Number of cans required = I got 31.25 buttt you can't
3 answers
1,638 views
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