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Shaila

Questions (104)

Did you hear about . . .the words are something like away five ten music were who tigers a two cash got the store dough etc .
1. 0 answers
2. 375 views
A variable force F acts through a displacement d. The magnitude of the force is proportional to the displacement, so F=kd, where
1. 1 answer
2. 609 views
When developing the equation for gravitational potential energy, why is it necessary to assume that the mass is rising at a
1. 1 answer
2. 433 views
If the force of friction is constant, prove that the stopping distance of a car on a level road varies directly with the square
1. 1 answer
2. 603 views
Imagine that you have a very powerful water pistol. Describe in detail the experiment that you could perform, including the
1. 1 answer
2. 436 views
A car with mass of 1875kg is traveling along a country road when the driver sees a deer dart out onto the road. The driver slams
1. 2 answers
2. 1,536 views
A billiard ball of mass 0.55kg moves with a velocity of 12.5m/s towards a stationary billiard ball of the identical mass and
1. 2 answers
2. 2,044 views
a) Describe a graph for which the average rate of change is equal to instantaneous rate of change for its entire domain.
1. 1 answer
2. 3,553 views
The speed of a pitched baseball is 46.0m/s. You want to know how fast is your school's star baseball pitcher could throw. You
1. 1 answer
2. 851 views
The speed of a pitched baseball is 46.0m/s. You want to know how fast is your school's star baseball pitcher could throw. You
1. 0 answers
2. 572 views
You are given the following two planes:x+4y-3z-12=0 x+6y-2z-22=0 a) Use the two original equations to determine two other
1. 0 answers
2. 927 views
In an experiment, two variable quantities, x and y were measured. The relation between x and y is thought to be: y= 4(pi)b(x)^3x
1. 2 answers
2. 628 views
a) Describe a graph for which the average rate of change is equal to instantaneous rate of change for its entire domain.
1. 1 answer
2. 930 views
s(t)= -4.9t^2+15t+1 - write an expression to represent the average rate of change over the interval '1' less than or equal to
1. 0 answers
2. 515 views
You are given the following two planes:x+4y-3z-12=0 x+6y-2z-22=0 a) Use the two original equations to determine two other
1. 1 answer
2. 537 views
In an experiment, two variables quantities 'x' and 'y' were measure. The relation between x and y is thought to be y=ax^(1/2)x(m
1. 1 answer
2. 855 views
In an experiment, two variables quantities 'x' and 'y' were measure. The relation between x and y is thought to be y=ax^(1/2)x(m
1. 0 answers
2. 670 views
write two other equations that have the same solution as this system od equations.3x-4y=-14 -x+3y=18 I found the solution to the
1. 4 answers
2. 617 views
Try to imagine a situation in which the form f=ma would no apply, but the form f=delta p / delta t could be used. Describe that
1. 4 answers
2. 1,038 views
Consider the plane that contains points A(2,3,1), B(-11,1,2), C(-7,-3,-6).a) Find two vectors that are parallel to the plane.
1. 2 answers
2. 2,445 views
You are given the following two planes:x+4y-3z-12=0 x+6y-2z-22=0 a) Determine if the planes are parallel b) Fine the line of
1. 1 answer
2. 734 views
A plane is defined by the equations x-4y+2z=16. Find two vectors parallel to the plane.
1. 2 answers
2. 1,557 views
A line has the same x-intercept as[x,y,z]=[-21,8,14]+t[-12,4,7] and the same y-intercept as [x,y,z]=[6,-8,12]+s[2,-5,4]. Write
1. 3 answers
2. 2,298 views
The vertices of a parallelogram are the origin and the points A(-1,4), B(3,6), and C(7,2). Write the vector equations of the
1. 3 answers
2. 2,024 views
You are given the following two planes:x+4y-3z-12=0 x+6y-2z-22=0 a) Determine if the planes are parallel b) Fine the line of
1. 0 answers
2. 563 views
Consider the plane that contains points A(2,3,1), B(-11,1,2), C(-7,-3,-6).a) Find two vectors that are parallel to the plane.
1. 0 answers
2. 730 views
A plane is defined by the equations x-4y+2z=16. Find two vectors parallel to the plane.
1. 2 answers
2. 657 views
A line has the same x-intercept as[x,y,z]=[-21,8,14]+t[-12,4,7] and the same y-intercept as [x,y,z]=[6,-8,12]+s[2,-5,4]. Write
1. 0 answers
2. 432 views
The vertices of a parallelogram are the origin and the points A(-1,4), B(3,6), and C(7,2). Write the vector equations of the
1. 1 answer
2. 596 views
Car A, with mass of 1735kg, was traveling north at 45.5km/h and car B, with a mass of 2540kg, was traveling west at 37.7km/h
1. 3 answers
2. 1,502 views
how is this equation derivedV'2= V1(2M1)/(M1+M2) (elastic collision - where one object is moving and the other is stationary)
1. 1 answer
2. 723 views
Car A(1750kg) traveling due south and car B (1450kg)due east. They reach the same intersection at the same time and collide. The
1. 1 answer
2. 1,460 views
Two cars of identical mass are approaching the same intersection, one from the south and the one from the west. They reach the
1. 4 answers
2. 1,897 views
Under what circumstances is the change in momentum of a system equal to zero?
1. 1 answer
2. 999 views
Show that the line [x,y,z]=[10,5,16]+t[3,1,5] is contained in the plane x+2y-z-4=0I tries writing the vector equation in
1. 1 answer
2. 601 views
Find the vector equation of the line of intersection for the pair of planes.Plane one: x+5y-3z-8=0 Plane two: y+2z-4=0 I did
1. 1 answer
2. 877 views
I need to make a Rube Goldberg Machine and it must demonstrate projectile motion, conservation of energy and conservation
1. 1 answer
2. 1,196 views
Find the distances between planes.plane 1: 2x-y-z-1=0 plane 2: 2x-y-z-4=0
1. 1 answer
2. 420 views
Find the distance between the parallel line and the plane.line: vector r = [2,0,1]+t[1,4,1] plane: 2x-y+2z=4
1. 0 answers
2. 393 views
Does the line [x,y,z]=[5,-9,3]+k[1,-12,2] intersect the plane [x,y,z]=[4,-15,8]+s[1,-3,1]+t[2,3,1]? If so, how many solutions
1. 0 answers
2. 597 views
Determine the number of solutions for the system without solving.3x+12y=-27 4x+2y=34
1. 2 answers
2. 1,006 views
Determine if L1 [x,y,z]=[4,-3,2]+t[1,8,-3] and L2 [x,y,z]=[2,-19,8]+s[4,-5,-9] intersect
1. 1 answer
2. 306 views
Solve the linear system in two space[x,y] = [-12,-7] + s[8,-5] [x,y] = [2,-1] + t[3,-2]
1. 1 answer
2. 368 views
Write a vector equation and scalar equation of the plane containing lines[x,y,z]= [-2,3,12]+s[-2,1,5] [x,y,z]=
1. 1 answer
2. 943 views
Use the concept of impulse to explain the difference in the results of a jump using a proper bungee cord and a jump using
1. 0 answers
2. 807 views
Try to imagine a situation in which the form f=ma would no apply, but the form f=delta p / delta t could be used. Describe that
1. 0 answers
2. 375 views
Define momentum qualitatively and quanititatively.(qualitatively - a measure of an object's mass to resist changes in its
1. 0 answers
2. 721 views
Wrtie a scalar equation given it's parametric equation.x = 3-2s+2t y = 1+3s+t z = 5-s-2t
1. 1 answer
2. 694 views
write a scalar equation, given it's vector equation.[x,y,z]= [3,7,-5] + s[1,2,-1] + t[5,-2,3] ( I remember my teacher saying
1. 1 answer
2. 706 views
Calculate the acceleration of two different satellites that orbit Earth. one is located at 2.0Earth radii and the other located
1. 1 answer
2. 439 views
A 42kg girl jumps on a trampoline, after stretching to its bottom limit; the trampoline exerts an average upward force on the
1. 1 answer
2. 1,069 views
Explain why the kinematics equations which describe the motion of the object that has constant acceleration cannot be applied to
1. 1 answer
2. 1,265 views
According to Newton's third law, for every action force there is a reacgtion force, then how can a team win a tug of war contest
1. 2 answers
2. 560 views
A car turns off the highway onto a curved exit ramp.a) What type of motion does the passangers' fram of reference experience
1. 0 answers
2. 542 views
How could you discover a planet without seeing it with a telescope?
1. 1 answer
2. 350 views
Why must a geostationary satellite orbit over the equator?
1. 2 answers
2. 669 views
The planet Neptune has an orbital radiu around the sun of about 4.50 * 10^12m. What are its period and its orbital speed?
1. 1 answer
2. 1,640 views
The polar- orbiting environmental satellites (POES) and some military satellites orbit at a much lower level in order to obtain
1. 1 answer
2. 990 views
Explain how you can weigh a planet?( Is it by the combination of the netwons law of univeral gravitation and keplers third law;
1. 1 answer
2. 494 views
Describe how Newton used each of the following phenomena to support the law of universal gravitationa) the orbit of the moon b)
1. 1 answer
2. 1,358 views
Describe the objective, apparatus and results of the Cavendish experiment
1. 2 answers
2. 423 views
Find the gravitational force between earth and the sun.I am using the formula Fg = (G*m1*m2)/(r^2) where G = 6.67*10^-11 m1 =
1. 2 answers
2. 496 views
On a highway, why are sharp turns banked more steeply than gentle turns?
1. 4 answers
2. 937 views
A centrifugal force, if it existed, would be directed raidally outward from the centre of the circle during a circular motion.
1. 1 answer
2. 404 views
If you were swingin a ball on a string around in a circle in a vertical plane, at what point in the path would the string be the
1. 1 answer
2. 572 views
What type of acceleration is associated with uniform circular motion?
1. 1 answer
2. 807 views
Suppose you knew the maximum height reached by a proejctile. Could you find its launch angle from this information alone? If
1. 2 answers
2. 578 views
What properties of projectile motion must you apply when deriving an equation for the range of a projectile?(is it the
1. 0 answers
2. 535 views
Imagine that you are solving a problem in projectile motion in which you are asked to find the time at which a projectile
1. 3 answers
2. 802 views
a) how is life of pi a story within a story within story? ( i know the first part a story within a story, but the other within
1. 1 answer
2. 1,172 views
Can anyone suggest names of books which include friendship between two women, or a book written by an American African.
1. 1 answer
2. 452 views
During baseball practice, you go up into the bleachers to retrieve a ball. You throw the ball back into the playing field at an
1. 1 answer
2. 752 views
While Hiking in the wilderness, you come to the top of a cliff that is 60.0m high. you throw a stone from the cliff, giving it
1. 3 answers
2. 1,645 views
What is the role of christainity in Life of Pi?
1. 0 answers
2. 341 views
I need to write an essay for life of pi which is five to six pages long, could anyone please give me suggestions what to write
1. 0 answers
2. 559 views
Book suggestions to read with Sula by Toni Morrison, i have to read a second book realted to the above book either in themes or
1. 0 answers
2. 539 views
You are pushing a 53kg crate at a constant velocity up a ramp onto a truck. The ramp makes an angle of 22deg with the
1. 2 answers
2. 2,066 views
By the mid-1800s, steam driven elevators with counterweights had been developed. However, they were not in common use until
1. 1 answer
2. 479 views
Two objects are moving in different direction. Under what circumstances can you treat this as one-dimensional problem?
1. 1 answer
2. 376 views
How does and Atwood machine make it easier to determine g - the acceleration due to gravity, rather than by just measuring the
1. 1 answer
2. 592 views
A 64kg person is standing on a scale in an elevator. the elevator is rising at a constant velocity but then begins to slow, with
1. 1 answer
2. 1,550 views
Resolve vector u =[3,4,7] into rectangular components, on which is collinear with vector v =[1,2,3].
1. 1 answer
2. 1,170 views
Prove that vector i,j and k are mutually orthogonal using the dot product.What is actually meant by mutually orthogonal?
1. 1 answer
2. 761 views
A crate is dragged 3m along a smooth level floor by a 30n force applied at 25deg to the floor. Then it is pulled 4m up a ramp
1. 0 answers
2. 778 views
a) Describe the form of the coordinates of all points that are equidistant from the x- and y-axes.b) Describe the form of the
1. 0 answers
2. 535 views
A crate is dragged 3m along a smooth level floor by a 30n force applied at 25deg to the floor. Then it is pulled 4m up a ramp
1. 1 answer
2. 1,100 views
Determine the interior angles of triangle ABC for a(5,1) b(4,-7) and c(-1,-8)
1. 2 answers
2. 658 views
consider a rhombus ABCDa) find the resultant of vector AB + vector AD and vector AB - vector AD? (cosine rule) b) What will be
1. 0 answers
2. 797 views
A barge is heading directly across a river at35km/h while you are walking on the barge at 4km/h in the same direction as the
1. 1 answer
2. 695 views
Three identical blocks, fastened together by a string, are pulled across a frictionless surface by a constant force.Compare the
1. 2 answers
2. 1,447 views
A 0.30kg lab cart is observed to accelerate twice as fast as a 0.60kg cart. Does that mean that the net force on the more
1. 1 answer
2. 1,378 views
When you pull on a rope, the rope pulls back on you. Describe how the rope creates this reaction force.
1. 1 answer
2. 609 views
An ice skater pulls three small children, one behind the other, with masses 25kg, 31kg, and 35kg. Assume that the ice is smooth
1. 1 answer
2. 823 views
Pushing a grocery cart with a force of 95N applied at an angle of 35deg own from the horizontal, makes the cart travel at a
1. 2 answers
2. 1,379 views
Identify the defining characteristic of inertial and non-inertial frames of reference. Give an example of each type of frame of
1. 1 answer
2. 650 views
A stage trick involves covering a table with a smooth cloth. When the cloth is suddenyl pulled horizontally, the dishes
1. 1 answer
2. 660 views
I need help finding two interesting novels which have the same theme that could be compared in an essay. Can any one suggest me
1. 1 answer
2. 492 views
let vector U = (vector u1, vector u2) vector V = (vector v1, vector v2) and vector W = (vector w1, vector w2) Prove each
1. 1 answer
2. 1,223 views
Given that points P(-6,1), Q(-2, -1) and R(-3,4) find:a) magnitude of vector RP b) perimeter of triangle PQR
1. 1 answer
2. 585 views
In a soccer match, the goal keeper stands on the midpoint of her goal line. she kicks the ball 25m at an angle of 35deg to the
1. 1 answer
2. 2,101 views

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