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Melissa

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HELP PLEASE.Hypothetically, you are standing on the balcony of an apartment on the 10th level of a building and you throw a ball
1. 0 answers
2. 610 views
A 60 kg student does 60 push ups in 40s . With each push up , the student must lift 70% of the body mass a height of 40cm off
1. 3 answers
2. 2,780 views
If the acetylene were burned to form water and carbon dioxide, how many kilojoules of energy would be produced from the complete
1. 1 answer
2. 803 views
If the acetylene were burned to form water and carbon dioxide, how many kilojoules of energy would be produced from the complete
1. 0 answers
2. 414 views
Viscous blood is flowing through an artery partially clogged by cholesterol. A surgeon wants to remove enough of the cholesterol
1. 1 answer
2. 2,853 views
1. Gina wants to begin by figuring out how long the corn bed will be. She knows that in her previous two gardens, she was able
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2. 436 views
Write the energy transformation equation for each situationFireworks explodes An arrow is shot off a bow and flies through the
1. 3 answers
2. 4,135 views
how does the slope of a Ff-Fg graph relate to the coefficients of friction , prove it mathematically.
1. 1 answer
2. 1,750 views
A 12 kg toboggan is pulled along at a constant velocity on a horizontal surface by a horizontal force of 11 NHow much horizontal
1. 1 answer
2. 1,579 views
A wagon is used to help deliver papers. There is a force applied at an angle of 25 degrees to the horizontal that causes the
1. 1 answer
2. 1,123 views
Verify if correct.Determine which line is parallel to the line with Cartesian equation 2x +3y + 5=0 a) r=(-1,-1) +s(2,3), seR b)
1. 1 answer
2. 1,286 views
Explain fully please and thank you! =)Determine the point of intersection of the lines L1: r= (1,3,7) + s(1,2,-2),seR and L2:
1. 1 answer
2. 546 views
Determine the magnitude of the force of gravity acting on a 340 kg satellite , 850 km above Earth's surface.
1. 1 answer
2. 734 views
A tug of war has started over a popular toy. One child pulls with a force of 2.0*10^1 N[W], a second child pulls with a force of
1. 1 answer
2. 744 views
If the coefficient of kinetic friction is 0.25 , how much horizontal force is needed to pull each of the following masses along
1. 1 answer
2. 943 views
A 650 N student is Rollerblading at a velocity of 7.8 m/s [W] when the student trips and slides horizontally along the trail,
1. 1 answer
2. 1,062 views
Determine the magnitude of the force of gravity acting on a 340 kg satellite, 850 km above Earth's surface
1. 0 answers
2. 475 views
Given the following forces acting on an object find the net force:2.0N[N], 10N[S], 2.0N[W], 8.0N[E] The mass is 5.1 kg with the
1. 3 answers
2. 592 views
Two children on the beach are pulling on an inner tube. One exerts a force of 45 N[N]. The other exerts a force of 60N[SW]. What
1. 1 answer
2. 900 views
Two children on the beach are pulling on an inner tube. One exerts a force of 45 N[N]. The other exerts a force of 60N[SW]. What
1. 1 answer
2. 1,351 views
Two children on the beach are pulling on an inner tube. One exerts a force of 45 N[N]. The other exerts a force of 60N[SW]. What
1. 1 answer
2. 621 views
Two children on the beach are pulling on an inner tube. One exerts a force of 45 N[N]. The other exerts a force of 60N[SW]. What
1. 1 answer
2. 572 views
Two children on the beach are pulling on an inner tube. One exerts a force of 45 N[N]. The other exerts a force of 60N[SW]. What
1. 1 answer
2. 624 views
The force of gravity at Earth's surface on an astronaut is 634N. What is the force of gravity on the same person at each of the
1. 2 answers
2. 2,647 views
The mass of Earth can be calculated using the fact that the weight of an object (in newtons) is equal to the force of gravity
1. 2 answers
2. 1,545 views
A ladder that is 15 feet long is placed so that it reaches from level ground to the top of a vertical wall that is 13 feet highA
1. 2 answers
2. 544 views
When the crampton coal-fired train engine was built in 1852 , its mass was 48.3t ( 1.0 t= 1.0*10^3) and its force capability was
1. 2 answers
2. 1,014 views
When the crampton coal-fired train engine was built in 1852 , its mass was 48.3t ( 1.0 t= 1.0*10^3) and its force capability was
1. 1 answer
2. 518 views
According to newtons 1st law , construction workers are warned not to leave their hard hats on the rear window ledge of their
1. 2 answers
2. 1,831 views
A jet plane pilot decides to accelerate horizontally. If the thrust of the engine is increased to 50 000 N at a time when the
1. 2 answers
2. 2,214 views
How much applied force is needed to accelerate a 2.0 kg block of wood at 4.0m/s^2 along a rough table, against a 10 N force of
1. 4 answers
2. 2,734 views
A 1200 kg boat accelerates steadily at 0.05 m/s^2 in a straight line . Are the forces on this boat balanced or unbalanced?
1. 6 answers
2. 1,213 views
A woman pushes a refrigerator across the floor at a steady speed of 20cm/s . If she has to push with a horizontal force of 400 N
1. 3 answers
2. 1,626 views
A jet plane is traveling at a constant speed in a straight line in level speed. What does this tell you about the forces acting
1. 3 answers
2. 1,421 views
A triathlete swims 1200 m due to east followed by 1500 m due northeast (45o). What is the overall displacement? (magnitude and
1. 2 answers
2. 940 views
A diver is jumping straight up with 2 m/s from a 15 meter platform. Calculate the maximum height of the diver, the diver’s
1. 2 answers
2. 1,082 views
A rectangular prism is defined by vectors (2,0,0) (0,9,6) and (0,0,3). Find the volume.
1. 0 answers
2. 337 views
The height of the segment from the apex of the cone to the base is 10 feet. The length of the diameter of the circular base is 4
1. 0 answers
2. 446 views
The height of the segment from the apex of the pyramid to the base is 10 feet. The length of the diagonal of the square base is
1. 1 answer
2. 894 views
Explain how the vector C⃗(Going from the head of B⃗ to the head of A⃗) can be written in terms of vectors A⃗ and B⃗Giv
1. 2 answers
2. 1,255 views
Please, help I don't understand vectors T.T1. In the prism, assume all dimensions have different lengths, state the following:
1. 1 answer
2. 607 views
A athlete in good physical condition can land on the ground at a speed of 12m/s without injury , calculate the max height from
1. 1 answer
2. 1,409 views
A student throws a baseball vertically upward, and 2.8s later catches it at the same level. Neglecting air resistance ,
1. 1 answer
2. 1,376 views
A car is doing a loop-the-loop. The loop has a radius of .4m. Assume the car is starting with the minimum speed it needs in
1. 1 answer
2. 569 views
A triangle is bounded by the x-and y-axes and must pass through P(2,2)a.) find the area of the triangle as a function of x
1. 1 answer
2. 432 views
A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees
1. 1 answer
2. 2,212 views
A rectangle is bounded by the x-and y- axes and the graph of y = -1/2x + 4.a.) Find the area of the rectangle as a function of
1. 1 answer
2. 1,066 views
A magazine company had a profit of $98,000 per year when it had 32,000 subscribers. When it obtained 35,000 subscribers, it had
1. 1 answer
2. 1,273 views
A river is moving at 4.0 m/s [s] , and a swimmer swims across it at 1.4 m/s [e] relative to the water. What is the swimmers
1. 1 answer
2. 668 views
A river is moving at 4.0 m/s [s] , and a swimmer swims across it at 1.4 m/s [e] relative to the water. What is the swimmers
1. 1 answer
2. 543 views
An article in Business Week warned of the dangers of deflation as the collapse of numerous Asian economies was creating worries
1. 0 answers
2. 650 views
B=1.69 (sqrt (s)+4.45)-3.49 solve for s
1. 1 answer
2. 713 views
A wire of length L and cross-sectional area A has resistance R. What will be the resistance R_stretched of the wire if it is
1. 5 answers
2. 2,878 views
. A neutral conducting sphere contains a spherical cavity. A point charge +q is located at the |center of the cavity.A. What is
1. 1 answer
2. 1,794 views
The angle between the polarizer transmission axis and the plane of polarization of the incoming light is 30 +/- 2 deg. If the
1. 1 answer
2. 657 views
Consider the equation 7sin^2x - (4sin2^x)/cosx = -1a) Put the equation in standard quadratic trig equation form. Why is it
1. 0 answers
2. 582 views
Which of the following is a solution for the equation 1/485tan^2x = 0?a) pi b) pi/2 c) 485pi d) no solution Which of the
1. 1 answer
2. 605 views
Solve the equation (x+3)(x-3) = -9. What are the solutions to the equation if you replace x first with sinx and then with cosx,
1. 1 answer
2. 466 views
Determine the solutions to the equation 2sinx − cos2x = sin2x for 0 ≤ x ≤ 2π .How do I start this question?
1. 8 answers
2. 647 views
How can I figure out what the line segment of radical, or Sq root of 17 looks like?
1. 0 answers
2. 306 views
A cheetah can accelerate at a rate of 8.0 M/S^2. Assuming it starts from rest, what will its velocity be after 3.5 SECONDS?
1. 2 answers
2. 455 views
a certain antibiotic redues the number of bacteria in your body by 10% each dse, if 4 doses of the antibiotic are taken, what
1. 1 answer
2. 626 views
sam invested $5000 in a GIC earning 8% compound interest per year, the interest gets added to the amount invested, so the next
1. 3 answers
2. 1,414 views
a student plants a seed, after the speed sprouts the student monitors the growth of the plant by measuring its height every
1. 1 answer
2. 3,109 views
determine the 100th term of the arithmetic sequence with t7=465 and t13=219
1. 2 answers
2. 2,512 views
In class I got this question any help would be great!! I have no clue how to answer it.If Jesus were human, what does this mean
1. 1 answer
2. 421 views
A catering company has 15 customer orders during its first month, for each month afterward, the comopany has double the number
1. 0 answers
2. 1,264 views
a ball is dropped from a height of 3m and bounces on the ground . At the top of each bounce, the ball eaches 60% of its previous
1. 4 answers
2. 7,740 views
The 13th termof an arithmetic sequence is 61 and the 20th term of the squence is 82. Calculate the sum of the first 25 terms of
1. 1 answer
2. 1,043 views
the 12th term in a geometric sequence is 49, and the 14th term is 2401 . Find the 15th term
1. 1 answer
2. 1,334 views
The first 1/5 of a mile is $1.50. For every additional 1/5 of a mile is 25 cents. If Marc has $3.75, at least how far can he go?
1. 0 answers
2. 360 views
True or False: The diameter of most atoms will be between 0.05 nm and 0.3 nm. I think its false (I don't think there even is an
1. 4 answers
2. 832 views
Matthew is riding a ferris wheel at a constant speed of 10km/h. The boarding height for the wheel is 1m, and the wheel has a
1. 1 answer
2. 2,007 views
The diameter of a car's tire is 60cm . While the car is being driven , the tire picks up a nail .How high above the ground is
1. 3 answers
2. 1,645 views
explain the process of adaptive radiation, and how are reproductive barriers important to speciation
1. 0 answers
2. 426 views
For this project for school we have to represent the noble eightfold path( right view) to canadian society , but i am so stuck ,
1. 1 answer
2. 396 views
The average hourly wage of employees in a large nationwide industry is $12.96. Assume the variable is normally distributed, with
1. 2 answers
2. 505 views
570 people were in a survey and 124 people said yes. What proportion of people said yes to 1 d.p
1. 1 answer
2. 501 views
Calculate the molar heat of neutralization in kJ/mol of the reaction between HA and BOH given the following information:The
1. 1 answer
2. 900 views
An urn contains 5 red marbles, 4 blue marbles, and 3 green marbles. A marble is selected at random and then, without replacing
1. 8 answers
2. 2,941 views
What are the differences between the characters Johnny and dally, in the story The Outsiders by S.E. Hinton?
1. 0 answers
2. 712 views
Let R be a commutative ring in with a^2=a for every element a. Show that a+a=0 for all a in R
1. 0 answers
2. 322 views
Let W be the set of all continuous fuctions from the set of real numbers R to R. For f, g in W define f+g by (f+g)(x)=f(x)+g(x)
1. 0 answers
2. 529 views
In guinea pigs, gene B is for black, b is for white the heterozygote is a mixture, called agouti. ( sex linked and non dominant)
1. 1 answer
2. 569 views
In man, muscular dustrophy , is inherited as a sex linked recessive , a couple , both of whom are normal, have five children,
1. 0 answers
2. 510 views
Suppose that a clolur blind man has parents with normal vision. Would all his sons be colour-blind ? Was his mother a carrier ?
1. 1 answer
2. 497 views
determine the value of k such that g(x)=3x+k intersects the quadratic function f(x)=2x^2-5x+3 at exactly one pointdetermine the
1. 4 answers
2. 9,090 views
Determine the equation of the inverese of the quadratic functionf(x)=x^2-4x+3
1. 1 answer
2. 446 views
The sum of two numbers is 16 . What is the largest possible product between these numbers
1. 4 answers
2. 3,485 views
Express each function in standard formf(x)=-3(x-2)^2+5 f(x)=2(x+4)(x-6)
1. 1 answer
2. 387 views
For a fixed element 'a' of a ring R, prove that the set {x exists in R such that ax=0)is a subring of R.
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2. 336 views
Did the Elastic Clause justify acts such as Hamilton's excise tax and the Bank of the United States or Jefferson's Louisiana
1. 1 answer
2. 466 views
The profit p(x) of a cosmetics company , in thousands of dollars,is given by p(x)=-5x^2+400x-2550, where x is the amount spent
1. 3 answers
2. 5,926 views
The height of a ball thrown vertically upward from a rooftop is modelled by y=-5t^2+20t+50 , where h(t) is the ball's height
1. 2 answers
2. 5,197 views
Determine the maximum of or the minimum value ofy=2x^2+12x
1. 1 answer
2. 449 views
In drosophila , short wings , and black colour are reccessive traits.long wings and grey colour are dominant. show the cross
1. 0 answers
2. 461 views
the height of a rocket above the ground is modelled by the quadratic function h(t)=-4t^2+32ta) how long will the rocket be in
1. 1 answer
2. 3,474 views
50x^2-72
1. 1 answer
2. 293 views
i tried these quesions so many times , but i just cant get he right answer !1.) 4(2-a)^2-81 2.) -(x-y)^3 3.)3x^2-27(2-x)^2 4.)
1. 1 answer
2. 389 views
i tried these quesions so manytimes , but i just cant get he rigt answer !1.) 4(2-a)^2-81 2.) -(x-y)^3 3.)3x^2-27(2-x)^2 4.)
1. 0 answers
2. 901 views

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