Thursday

February 26, 2015

February 26, 2015

Number of results: 66,222

**Science/Math**

A sailboat heads north at 3 m/s for 1 hour and then tracks back to the southeast (at 45 degrees to north) at 2 m/s for 45 minutes. a. How far has the boat sailed? b. How far is it from its starting location? The textbook that included the word problem is: Basic Biomechanics ...
*September 30, 2013 by Walter*

**Science/Math**

Word Problems pages 18-19 A sailboat heads north at 3 m/s for 1 hour and then tracks back to the southeast (at 45 degrees to north) at 2 m/s for 45 minutes. a. How far has the boat sailed? b. How far is it from its starting location? The textbook that included the word problem...
*September 29, 2013 by Walter*

**Science/Math**

John and Al are in a 15 km race. John averages 4.4 m/s during the first half of the race and then runs at a speed of 4.2 m/s until the last 200 m, which he covers at 4.5 m/s. At what average speed must Al run to beat John? The textbook that included the word problem is: Basic ...
*September 30, 2013 by Walter*

**Science/Math**

Word Problem page 19 John and Al are in a 15 km race. John averages 4.4 m/s during the first half of the race and then runs at a speed of 4.2 m/s until the last 200 m, which he covers at 4.5 m/s. At what average speed must Al run to beat John? The textbook that included the ...
*September 29, 2013 by Walter*

**maths/physics/biomechanics**

At the beginning of a race, a yacht crosses the start line and sails in westerly direction at a speed of 4 m s-1. The current of the sea is flowing at 2 m s-1 towards the north-east. Calculate how far [8 marks] and in what direction (relative to west) [8 marks] the yacht has ...
*February 9, 2012 by alex*

**physics (biomechanics)**

briefly explain how an athlete competing in the long jump can prevent the trunk from pitching forward after take-off
*November 30, 2011 by Lauren*

**maths**

A survey o 85 students asked them about the subjects they liked to study 35 students liked maths,37liked history,26 liked physics,20 liked maths and history,14 liked maths and physics,2 liked all the subjects. a) how many of these students like maths and physics? B) how many ...
*January 28, 2015 by deepthi*

**Math/Science**

Wendell invests $10,000 in a stock portfolio made up of Petroleum Special at $30 per share, Newshoe at $12 per share, and Beans and Sprouts at $2.50 per share. He places 60 percent of the money in P.S. (Petroleum Special), 30 percent in N (Newshoe), and 10 percent in B & S (...
*September 30, 2013 by Walter*

**Science/Math**

Math Problem page 18 Wendell invests $10,000 in a stock portfolio made up of Petroleum Special at $30 per share, Newshoe at $12 per share, and Beans and Sprouts at $2.50 per share. He places 60 percent of the money in P.S. (Petroleum Special), 30 percent in N (Newshoe), and 10...
*September 29, 2013 by Walter*

**Biomechanics**

A cyclist completes 3.0 revolutions in 1.59s what is the angular velocity?
*March 9, 2013 by Vanitha*

**Biomechanics**

How do you compute the additional work done after a stretch-chorten cycle?
*August 5, 2011 by Leah*

**biomechanics**

Suggest how a snail and a large dog develop linear momentum.
*March 24, 2013 by yaya*

**physics/biomechanics**

1. Once a person is in the air during a jump can they modify their path in the air of: a) their head b) Their whole body centre of gravity c) their hip joint (yes or no) 2. To achieve peak horizontal distance on flat ground, what should the angle of take off be?
*February 7, 2013 by tasneem*

**physics/biomechanics**

1. Once a person is in the air during a jump can they modify their path in the air of: a) their head b) Their whole body centre of gravity c) their hip joint (yes or no) 2. To achieve peak horizontal distance on flat ground, what should the angle of take off be?
*February 7, 2013 by tasneem*

**biomechanics**

Briefly describe the distribution problem and the two techniques used to overcome it.
*November 14, 2012 by dmkp*

**Biomechanics**

Flexion of the elbow and supination of the forearm occur about what axes respectively?
*March 22, 2014 by Evelyn*

**Biomechanics**

Flexion of the elbow and supination of the forearm occur about what axes respectively?
*March 23, 2014 by Evelyn*

**biomechanics**

An individual is running around a turn with an 11-m radius at 3.75 m/s. What is the runner's centripetal (radial) acceleration?
*November 4, 2009 by tina*

**Biomechanics**

What will be the vertical velocity at take off for a high jumper in order for them to clear a height of 2m?
*July 31, 2013 by Natalie*

**biomechanics**

If a soccor ball with a mass of 0.43 kg is kicked while it is in the air, with a force of 15 N oriented 32 degrees above the horizontal, what is the resultant acceleration?
*April 8, 2011 by katie*

**biomechanics**

f a 20.8 N horizontal force must be applied to slide a 10.1 kg box along the floor at constant velocity what is the coefficient of sliding friction between the two surfaces?
*May 20, 2012 by Anonymous*

**Biomechanics**

A golfer at the tee swings their driver and completes a downswing in 0.27s through a range of 196.1degree. What is the average angular velocity of the club head
*March 9, 2013 by Vanitha*

**Math**

Make a complete re search project on maths is interconnected with other subject i.e. Maths Vs computer using art with maths.
*June 5, 2012 by Shivansh Tomar*

**biomechanics**

If a kicker produces a torque of 8Nm with her muscles and the resulting angular acceleration of her leg is 20rad/m2, what is the moment of inertia of her leg?
*April 6, 2010 by Jane*

**maths letaracy,history,geography and life science **

im going to grade 10 next year,and i want to be a psychologist and im going for maths letaracy and history feild im realy not good with maths and i just found out a few weeks ago that i need pure maths to do psychology.i dont know what to do now ,i also dont know the jobs ...
*October 26, 2013 by khanyisa maringa*

**business studies n maths lit n accounting n geo**

Do I need pure maths in These subjects or is maths lite fine to get me to the point of being a entreprenuer in my life
*January 21, 2015 by bafana matseke*

**biomechanics**

During an elbow flexion exercise, the relative angle at the elbow is 22 degrees at .3s and 155 degress at .62s. What is the angular velocity of the elbow?
*November 4, 2009 by anonymous*

**maths a**

Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision. ...
*September 11, 2014 by jay*

**biomechanics**

By actual measurement it has been shown that a sprinter pushes 1700N on each foot at the starting blocks . The right at 34o and the left at 52o Calculate the vertical component for each foot.
*March 23, 2013 by yaya*

**Maths B**

Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision.
*May 24, 2012 by Anna*

**Maths B**

Charlotte received a score of 68 on both her English and Maths tests. The mean for English was 52 and the mean for Maths was 55. The standard deviations for English and Maths were 10 and 8 respectively. In which subject did Charlotte perform better? Explain your decision.
*May 24, 2012 by Anna*

**Biomechanics**

A long jumper runs down the runway and it is measured that her vertical velocity is 2.7 m/s and her vertical velocity is 6.6 m/s. what is her angle of takeoff?
*February 2, 2014 by Anonymous*

**biomechanics **

you are trying to lift a 10 kg dumbbell by pulling upward on it with a 108.1 N force. what wil lthe acceleration of the dumbbell be as a result of this force?
*March 14, 2013 by Anonymous*

**biomechanics**

If a 100 kg adult sits on a first class lever 2.3 meters away from the axis of rotation...how far back do I need to sit (145 lbs) on the other side to balance the lever?
*October 23, 2013 by Anonymous*

**Biomechanics**

A sailboat heads north at 3 m/s for 1 hour and then tracks back to the southeast (at 45 degrees to north) at 2 m/s for 45 minutes. a. How far has the boat sailed? b. How far is it from its starting location?
*September 27, 2013 by Walter*

**Basic Biomechanics**

A sailboat heads north at 3 m/s for 1 hour and then tacks back to the southwest (at 45 degree to north) at 2 m/s for 45 minutes. a. How far has the boat sailed? b. How far is it from its starting location?
*September 29, 2013 by Walter*

**Biomechanics**

If an average net force of 20N at 45* is applied to a 0.35 kg water balloon for 0.12s. how far away should the catcher stand? Assume release height and cathc height are the same and air resistance is not a factor.
*November 29, 2010 by Bob*

**Biomechanics**

A 10 kg block sits motionless on a table in spite of an applied horizontal force of 2 N. What are the magnitudes of the reaction force and friction force acting on the block?
*April 18, 2013 by Jami*

**Biomechanics**

If John was pushing a 300 kg desk across the floor with a constant acceleration of 3.5 m/s squared, how much force would he have to apply to the desk to maintain the acceleration, considering the coefficient of kinetic friction is 0.60?
*February 17, 2011 by Jennifer*

**maths**

i am told to do a project in maths it should involve a maths consept.pls help as to what should i do?
*November 18, 2007 by chandini*

**biomechanics**

During a biceps curl, the elbow's relative angle during flexion changes from 3° to 157°. During an 8 repetition set, what is the total angular distance and displacement at the elbow in degrees and radians?
*June 30, 2014 by travis*

**biomechanics**

a shot is released at a height of 1.89m, with a speed of 13m/s and at an angle of 34 degrees. Calculate the maximum height reached and the time at which this occurs, the range and the time of flight, and the optimum projection angle.
*February 16, 2012 by J*

**Maths**

A school has eleven Year 9 Maths classes of 27 students. Each class has 4 extra students added to it. Find the total number of students studying Year 9 Maths.
*February 26, 2009 by Jessica*

**Biomechanics**

John and Al are in a 15 km race. John averages 4.4 m/s during the first half of the race and then runs at a speed of 4.2 m/s until the last 200m, which he covers at 4.5 m/s. At what average speed must Al run to beat John?
*September 27, 2013 by Walter*

**Basic Biomechanics**

John and Al are in a 15 km race. John averages 4.4 m/s during the first half of the race and then runs at a speed of 4.2 m/s until the last 200 m, which he covers at 4.5 m/s. At what average speed must Al run to beat John?
*September 29, 2013 by Walter*

**Biomechanics**

During the support phase of walking the absolute angle of the thigh has the following angular velocities frame 38 0.6167s 1.033rad/s frame 39 0.6333s 1.511rad/s 40 frame 0.6500s 1.882rad/s calculate the angular acceleration at frame 40 from frame 38
*March 9, 2013 by Vanitha*

**maths**

I am really facing difficulty in maths. I do my best to improve in maths but after entering in the examination hall during my exams, i just get confused. please help The proper name for the subject is mathematics or just "math" for short. Calling it "maths" calls attention to ...
*June 14, 2006 by devendri*

**Maths B**

Andrew got 68 for both English and Maths. The mean for english was 52 and the mean for Maths was 55. The standard deviations were 10 and 8 respectively. Determine the subject in which andrew did better
*March 9, 2013 by Will*

**biomechanics**

A Softball is Thrown at an angle of 45 degrees with the horizontal. It leaves the hand 2m above the ground. Its Initial Velocity is 20 m/s . Neglecting all external resistance, how far would it travel ? The point at which it hits the ground is at the same level as the ground ...
*March 18, 2013 by yaya*

**statistics**

among the exames in the examination 30%, 35% & 45% failed in statistics, in maths, & in atleast one of the subjects respectively. one student is selected at random. find the probability that: (a)he has failed in maths, (b)he passed in statistiics if it is known that he has ...
*October 27, 2010 by hhhh*

**probability**

among the exames in the examination 30%, 35% & 45% failed in statistics, in maths, & in atleast one of the subjects respectively. one student is selected at random. find the probability that: (a)he has failed in maths, (b)he passed in statistiics if it is known that he has ...
*October 27, 2010 by hhhh*

**Basic Biomechanics**

Wendell invests $10,000 in a stock por5tfolio made up of Petroleum Special at $30 per share, Newshoe at $12 per share, and Beans & Sprouts at $2.50 per share. He places 60% of the money in P.S., 30% in N, and 10% in B & S. With market values changing (P.S. down $3.12, N up 80...
*September 27, 2013 by Walter*

**Biomechanics**

Larry stands on a bathroom scale while riding up in an elevator. His mass is 75 kg. At the current time the scale reads 100 lb. assuming the upward direction is regarded as positive, what is Larry’s acceleration in m/s2? What is happening to the elevator at this instant (i.e...
*October 22, 2013 by Zack*

**Maths**

Hey :) I'm sitting my maths non-calculator GCSE tomorrow and am currently revising. I'm doing a practise paper and am currently stuck on this question: Express A in terms of w. 3w + 20 A -------- = -------- 200 A + 12 -- What does the question mean? -- Can you explain to me ...
*May 17, 2009 by Sarah*

**Math**

In a maths class of 13 students, 2/3 of boys and 1/4 of the girls love maths. How many girls love maths
*March 27, 2012 by kayode*

**Maths**

Hi Can someone give me a help in finding maths quiz websites for Ket Stage 3
*April 21, 2007 by Fahad*

**maths**

pplz tell me about maths working modals froom where can i down load then????
*January 22, 2009 by pulkit*

**Maths**

What is the best website which has printable free worksheets for grade 7 with the maths topic : decimals? thank you for your help.
*January 23, 2011 by Alberta*

**MATHS**

A store clerk sold 25 maths books and 10 english books for $855.00 .if she sold 10 maths books and 40 English books, she would have got $135 more. calculate the cost of each book.
*February 9, 2010 by JERMAINE*

**BIOMECHANICS**

The NCAA requires that a basketball dropped from a height of 1.83 m (measured to the bottom of the ball) bounce to a height of 1.24 to 1.37 m (measured to the top of the ball). Assuming the diameter of a typical basketball is 0.25 m, calculate the allowable range of ...
*December 5, 2010 by jhkh*

**MATHS**

ms.sue can you practice me in maths for s.e.a like give me sites to do test then you will correct when i post the answers
*March 17, 2013 by fred*

**REGARDING MATHS**

how to get the top rank in various maths olympiads...?
*May 26, 2011 by ???????*

**maths**

can any one tell me wat are the topics for class 10th maths project for the year 2010-2011.
*May 15, 2010 by prateek nayak*

**history,geography,life science,maths or maths lit**

can i be a social worker while am those subject
*December 5, 2013 by kamva*

**Basic Biomechanics**

A car teeters on the edge of a cliff. A eagle weighing 55 N lands on the hood 1.1 M from the edge of the cliff which functions as an axis. At the same time, an owl weighting 44 N lands on the trunk 1.5 m from the axis. What are the torques exerted by the birds? What will ...
*June 8, 2012 by Joshua Mclaurin*

**maths**

How to prepare a working model in maths for standard IV?
*May 1, 2008 by pawan*

**maths**

what are the applications of maths in our daily life
*May 20, 2013 by Gagandeep*

**mathematical literacy**

Are there available degrees relating to comerce, that can be done with Maths Lit, and not Maths. Preferably at a good institute like uct, uj, ukzn, etc.
*January 12, 2015 by vladimir*

**Biomechanics **

A diver is trying a new more and is attempting to increase his angular acceleration in order to increase the angular displacement and thus produce more rotations from a standing start on the board the diver accelerates at 950 degree/s/s.what is the angular displacement over 0....
*March 9, 2013 by Vanitha*

**Maths**

Could somebody help me with this Maths squence 2N + 2, 3N - 1 , 10N + 6
*September 27, 2007 by Robert*

**maths**

which is valuable abacus or vedic maths?
*December 16, 2012 by Anamika*

**Biomechanics**

A ball is thrown vertically upwards in the air at a velocity of 50(m/s) and reaches a maximum height of 20(m). Calculate the time when the ball reaches the 10(m) mark, while going up and coming down. Use the following equation of motion: y(f) = y(i) + v(i)t+1/2at^2 y(f) and y(...
*July 17, 2012 by Jack*

**BioMechanics**

You have a subject (height = 150 cm, mass = 85 kg) lying prone on a moment table with their feet pressed against the foot rest. Assuming that you zeroed the scale before the subject got on the table, the scale now reads 40 kg. Where is the centre of mass (relative to the feet...
*February 21, 2015 by Jessica*

**Biomechanics**

A pitched ball with a mass of 1 kg reaches a catcher's glove traveling at a velocity of 28 m/s. How much momentum does the ball have? how much impulse is required to stop the ball? If the ball is in contact with the catcher's glove for 0.5 s during the catch, how much average ...
*November 21, 2010 by Walter*

**biomechanics**

Calculate the magnitude of the force required to cause an anterior dislocation of the glenohumeral joint given that he force has a lever arm of 52 cm, the maximum magnitude of the resistance force is 1080 N and the resistance force has a lever arm of 4.3 cm.
*December 12, 2012 by dmkp*

**MATHS**

if a student scores 58 in a maths exam predict the score they would get in science??? Have no idea where to start on this answer other than having a good guess!! Can anyone help please??? Thanks Andrew
*July 19, 2010 by ANDREW*

**biomechanics **

a sailboarder is zipping northeast across the river wit ha velocity of 10 m/s relative to the water the river current is moving the water north at a velocity of 3 m/s downstream. if the angle between the relative velocity of the sailboard and the river current is 30 degrees, ...
*February 21, 2013 by Anonymous*

**Basic Biomechanics**

Wendell invests $10,000 in a stock portfolio made up of Petroleum Special at $30 per share, New shoes at $12 per share, and Capital beans and Sprouts at $2.50 per share. He places 60 percent of the money in P.S., 30 percent in N, and 10 percent in B & S. With market values ...
*September 29, 2013 by Walter*

**Maths**

Hi there, I'm currently stuck on a maths question. Find the limit as x approaches 0 for (1+sinx)^cotx I've put logs on both sides and am attempting to use hopitals rule but don't know where to proceed from here.
*October 19, 2014 by Ss*

**Physics/ Biomechanics**

Compare the vertical jump heights obtained using the vertical velocity at take off and half the flight time. Which one do you think is more accurate in assessing a vertical jump performance? - my vertical jump height using vertical velocity at take off = 0.28m - my vertical ...
*October 17, 2014 by Anonymous*

**maths**

In a maths test a student score 75 out of 100 marks.Express his marks as a decimal
*December 8, 2011 by wizguysaturday*

**Accounting,business studies,economics and maths literacy**

What career to follow wth maths literacy
*January 22, 2014 by Bongiwe*

**Exams help**

Hello I am a Grade 11 student , I am willing to resit my maths exam this November , but I have to take my account that my IGCSE's are this year , my mocks will be in January and my real resit exams will be at the beginning of November , which is just a month ahead Should I ...
*October 4, 2008 by Amy*

**English**

Can you please help express the concept below? Thank you, Writeacher. I was last proud of myself when I got an A in maths/when I got a 7 and a half (according to the Italian grade system) in maths.
*April 24, 2012 by Mike1*

**maths**

As a foundation teacher how can you make maths sansetive to all foundation phase learners
*March 18, 2010 by Thandokazi*

**biomechanics**

calculate the following body segment parameters for the thigh of a subject with a height of 180cm and mass of 72kg a) segment mass b) segment length c) centre of mass position relative to proximal end d) radius of gyration about proximal end e) Moment of Inertia about proximal...
*November 14, 2012 by dmkp*

**math**

who are the fathers of following subjects a)maths b)physics c)chemistry d)biology e)social
*August 22, 2011 by jagadheeswar*

**presentation-maths**

I have to do a presentation on maths. It is on time but I can't think of many mathmatical links.
*May 14, 2009 by Anonymous*

**Biomechanics**

Take a metal coat hanger and straighten it. Hold a 10 inch straight section so it points up in the air. Holding the bottom still and using the other hand to bend it to the side, move the end 1 inch then release it. What happens? Repeat this with 2 inches, 3 inches, etc, until ...
*June 14, 2014 by courtney*

**math**

any shape with 4 lines of symmetry and rotational order 2. A rectangle would fit that description. See http://www.icteachers.co.uk/children/sats/rotational.htm#Maths I hope this helps. Thanks for asking. i need some help on my maths and i am inbarresed to ask my teacher
*September 17, 2006 by george*

**statistics**

in a class of 40 student,18 pass maths, 19 pass account,16 pass economics 5 pass maths and account only, 6 pass maths only, if each student pass at least one of the subject.find the percentage number who fail in at least one of economics and maths. how many student fail in all...
*October 5, 2011 by kenneth*

**Biomechanics**

Two ice skaters start out motionless in the center of an ice rink. They then push each other apart. The first skater (mass = 80 kg) moves to the right with a velocity of 2.5 m/s. The second skater (mass = 58 kg) moves to the left at some unknown speed. If we assume that the ...
*April 6, 2014 by Brendan *

**10th**

i am just abt to finish my 10th grade,i am very weak at maths and science,hence i have opted to take economics. 1.is this the right choice? 2.is there goin to be maths in it? 3.what are the core subjects involved?
*February 23, 2011 by sam*

**Biomechanics**

A hammer thrower is trying a new throw by adjusting the arm length to increase angular velocity technique1 angular velocity of15.4rad/ s with the hammer being 139.8 cm from the shoulder joint in technique2 they rotate with an angular velocity of 13.9 rad/s with the hammer ...
*March 9, 2013 by Vanitha*

**Maths**

Hi I have a maths problem I can't figure out please someone help. Zac had some 2c stamps and 5c stamps.he needed to put 30c on a postcard to mail it.what combinations of stamps could he use.
*August 13, 2013 by Maddy*

**Biomechanics**

While pushing off against the starting blocks at the beginning of a race, Olympic swimming great Michael Phelps generates a force that increases linearly from 0 N to 800 N over the first 0.30 s, and then decreases steadily back to 0 N over the remaining 0.30 s (see the graph ...
*April 6, 2014 by Brendan *

**quick french question**

In the sentence "ou prenez vous des cours de maths?" can I replace "des cours de maths" with "en?"
*February 5, 2009 by rc*

**maths Literacy**

It takes time to understand maths Literacy most on fractions an mixed fractions what must I do?
*January 25, 2014 by Katleho*

**Maths lit , CAT and history**

Im doing maths literacy , CAT and history , i want to know what jobs are linked to such subjects
*November 20, 2014 by Neo Aya *

**Maths**

I have a maths exam tomorrow and am studying with a friend. We are working on a question and are getting two different answers. Could you please show us the right way to do it? 2(4x + 3)(4x - 3) - (4x + 3)squared p.s i couldn't find a squared symbol so only the last bracket is...
*March 15, 2008 by Nat*

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