Slope Definition and 787 Threads

:cry: I need a bit of help finding a good source to use to help solve these problems. I am taking a test that is 20% physics (20% chem and the rest are life sciences) and I have not taken physics in over five years. I've been browsing through the internet for over two hours now and the best...

Homework Statement If the slope of a graph of the acceleration of a cart vs. the number of paper clips attached by a string and suspended over a pulley is ( 20 cm/s2) / clip, and if the slope of a graph of number of paper clips needed to maintain equilibrium vs. ramp slope is 47 clips / unit...

units ?? Homework Statement This should be straightforward but I'm not sure what to do. If I make a graph and the Y axis is in cm, and the X is in g, does cm/g make sense? I'm trying to find the spring constant 'k' by using the slope of my graph. When I do this I get a huge number so...

Error bars and slope error ?? Homework Statement I have to construct a graph with three lines. The middle line is 'best fit', one line is 'max slope' the other 'min slope', and error bars need to be drawn. The error for the Y axis is too small to draw so there is only an error bar for X...

Hi, Kinda new here so here goes. I have been asked to drawn a graph B(magnetic field) vs Tan theata and find its slope, ok no problem there. The next question has asked me to use the value of the slope to obtain the value of the strength of the Earth's magnetic field in the region :eek...

This might be an extremely easy question and I'm just over-thinking it, but could someone give me a hand with some grade 10 physics? 1. A downhill skier has an initial speed of 2.5 m/s. She accelerates up to a speed of 20 m/s in 3.8 s. a) Calculate the average acceleration of the skier...

Give the slope of the asymptote for the hyperbola given by the equation 6x^2 - {d}y^2 = 6. Give the value that is positive

Proving slope "m" of a secant connecting two points of the sine curve Homework Statement Write and expression for the slope m of the secant connecting the points Po(Xo,Yo) and P(X,Y) of the sine curve. Use the appropriate trigonometric identity to show that m= sin((X-Xo)/2)/((X-Xo)/2) * cos...

Logically the req. force should be -3430N * cos(15) because it is the direction of the tows motion and it is the force req. to balance (Fy-net = 0, since a=0) - but it is 3430N * sin(15). Why?

Find the points on the graph of y= (1/3)x^3-5x- (4/x) at which the slope of the tangent is horizontal. what i know: - we have to use m=[f(a+h)-f(a)]/h - if we change the equation we can get 3x^4 - 15x^2 -12 - the slope of the tangent is zero. THANX

Homework Statement A car traveling at 22.0 m/s runs out of gas while traveling up a 25.0 degree slope. How far up the hill will it coast before starting to roll back down?Homework Equations Vf^2 = V0^2 + 2ax x = V0t + (1/2)at^2 (maybe?)The Attempt at a Solution I am using an online homework...

Hi I have some data which concists of some points (x,y) and I'm looking for a program that can calculate for me the slope of the linear fit line (trendline) including uncertanity on the slope. Also the y-interception has to bo at 0. My data set includes incertanities on both x and y...

Given: slope of the graph of ln(temperature dimensionless) vs. time slope=-0.0416 -t/tau = ln(temperature dimensionless) I don't know where to put the slope into the equations? I know that the time constant is the tau. Also have -1/tau equation. I tried this...

Homework Statement I have to find the slope of an exponential curve by using log identities. Using basic values such as: (10, 0.692) (30, 1.082) (70, 1.579) Homework Equations The equation is in the form T=Cm^p So the log function is logT=logC + Plog(m) right? The Attempt at a Solution...

A block of mass M resting on a 19.1° slope is shown. The block has coefficients of friction μs=0.788 and μk=0.482 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 1.86 kg. What is the minimum mass M1 that will stick and not...

Homework Statement A solid cylinder of radius R sits at the top of a slope of angle theta. When it rolls down, what is the minimum coefficient of friction (k) required to make the cylinder roll without slipping?Homework Equations Fx: mgsin(theta) - kmgcos(theta) = ma Torque: kmgRcos(theta) =...

Guys,Please Help me with this question.It would be very very greatful. Explain what physics quantity the slope of the position vs. time graph represents?:confused: I tried but i couldn't find it so..Please Help me.i need to write it in my HW.and its due on 17th Jan. Thank You.

Homework Statement A ball is kicked off of a hill with an initial horizontal velocity of 10 m/sec. The pitch of the hill from where the ball is thrown is -20°. Determine how far the ball lands from its original position. Not given, but I'm acting under the assumption that gravity =...

Homework Statement Find the values of k such that lines 3kx+8y = 5 and 6y -4kx = -1 are perpendicular. I don't need the answer, but a push in a right direction. However, feel free to solve the equation :) Homework Equations 1. Slope of a line is m = [y2-y1]/[x2-x1] where we have 2...

Homework Statement http://img132.imageshack.us/img132/2847/img1dy7.jpg shows an 11.7 ft wide ditch with approach roads at an angle of 15 degrees.With what minimum speed should a motorbike be moving on a road so that it safely crosses the ditch.Assume the length of the bike to be 5 ft, and it...

Sorry here is another question that I am not sure of 1. A cylindrical hoop rests on a rough uniform incline. It is released and rolls without slipping through a vertical distance h0. It then continues up a perfectly smooth incline. What height does it reach? Here is my solution...

A spring (k= 416 N/m) is at the bottom of a 25 degree frictionless inclined plane. The spring is compressed 11 cm and a 1.3 kg mass is placed against the spring. The spring is released. Calculate the distance up the incline that the mass travels before coming to a stop for the first time...

A ski starts from rest and slides down a 23° incline 60 m long. Use energy methods. (a) If the coefficient of friction is 0.09, what is the ski's speed at the base of the incline? m/s (b) If the snow is level at the foot of the incline and has the same coefficient of friction, how far will...

I'm trying to think up situations that will help me understand more complicated situations... Let's say I have: a box on a slanted slope on a chair on the floor The floor exerts a normal force on the chair. But, equal to what? is it: a box m_{1}gcos\theta on a slanted slope m_{2}g on a...

a 2.0 kg brick rides on a 20kg sled and is dragged upa22 degree slope by a rope witha tension of 1000 N. Theropeis parallel totheslope. The friction coefficient(both static and kinetic) between the brick and sled is 0.30 and between the sled and the ground is 0.15. Predict each mass's...

There is a circular slope that a skier is going down. He is at the top. If he goes just fast enough to start down the slope, at what angle to the center of curvature does the skier go airborne? I'm not sure if its asking for an exact angle or what. Any help or shove in the right direction is...

If I pull a box at a small horizontal angle (say 5 degrees) with a constant force up the slope, and pull another box with the same magnitude of force (at say 60 degrees) up, will the two boxes have the same acceleration, or will one box accelerate faster? If so, which one is accelerating...

If I'm finding the slope of the line of average balance mass(g) vs. total mass (g), should the units for slope be grams? or does it not have units? I know it should be g/g but would that cancel out or stay grams? Sorry if that's confusing. Thanks.

can you guys help me how to do this problem? f(x) = 3x^2 - 1 (3,8) Find slope and tangent line, I have answer 6, is that right? and can you guys show the step to get the answer, thanks =) (tangent line i already know how to do) oh and this one, y = x^2 - 4 Find...

Here is the question: A women skis down a slope 100 m high. Her speed at the foot of the slope is 20 m/s. What percentage of her intial potential engery is lost? okkk.. here is what I get: My instructor mentioned this was a Ef/Ei problem. (effientcy final divided by effientcy intial)...

I was hoping someone might be able to help with this. I have provided the problem and everything I know about solving it. Any help will be appreciated. A projectile hits a slope at a certain point. What is the range of the projectile along the slope? Given: initial velocity (V...

I'm given f(x) = x^2 and g(x) = -x^2 + 2x - 5 And it says Let A (a, f(a)) be the point of tangency on f(x) and B (b, g(b)) be the point of tangency on g(x). Use calculus to find the slope of the tangent line at each point. What must be true about these two slope expressions? I know we...

Hey guy's just found this forum, seems pretty interesting, but I've been nested in my bedroom trying to figure out one little thing that miffed me off, I did it in A level physics a while back and remember understanding it completely. Just to make the question a little easier I'd like to...

A ski jumper acquires a speed of 111.4 km/hr by racing down a steep hill. He then lifts off into the air from a horizontal ramp. Beyond this ramp, the ground slopes downward at an angle of q = 45°. Assuming the skier is in free-fall motion after he leaves the ramp,at what distance down the slope...

I started doing some physics today for the first time since school got out a few months ago. The period of inactivity was painfully apparent throughout the attempt. I'm trying to find the apparent instantenous "r" of an object moving along an ununiform slope where "r" is the radius of a...

Sry don't know how to use latex, so my calculations may be very messy Find the coordinates of the point on the curve f(x) = 3x^2-4x , where the tangent is parallel to the line y=8x. I know the formula m=limh->0 f(x+h)-f(x) / h What i tried was: Let coordinates be (x,y) y=3x^2-4x...

In this lab, I'm supposed to find the average slope between a charging and discharging capacitor. For the slope of charging and for the slope discharging I used the basic formula y2-y1/x2-x1 choosing arbritary points on both lines. Charging slope = 4.6/-15, and discharging slope = 3.48/-57. Now...

If I take an infinitely long, thin wing and measure its lift curve slope I should get 2pi. Now if I take a 1/2-wing and fit 1 end to a plate and test it in a wind tunnel, it should simulate the flow around a full span wing, am I wrong? Therefore measuring lift and working out the CL values...

I started running a few weeks back and I want to know if I'm improving speed-, distance- and duration-wise. I have a set of data like these (this is bogus data), currently in Excel: 15 13 16 17 15 15 14 17 17 and I want to know if these numbers get larger with time. How would...

With a given inclination of a 130 degrees. and up in the left corner it says -1 I have no idea how to do this, any idea?

Slope of an x vs t plot question...Help please.. The slope of an x vs t plot is NOT acceleration right? The slope of a point on the x axes is just the velocity at that point in time, right? Thanks for any help you can give me.

Hello all, I've searched and browsed and I haven't found anyone else that's asked this question, so I will ask it here. A cannon point at a fixed angle of 30° is placed on a slope of 12° and fired uphill at an initial velocity of 30 m/s. What is its range? I thought about making the...

Hey there, I need a little push in the right direction. Here is the question: The slope of the tangent line to the graph of the exponential function y=2^x at the point (0,1) is lim x approaches 0 (2^x-1)/x. Estimate the slope to three decimal places. Where I am getting confused is which...

Holding onto a tow rope moving parallel to a frictionless ski slope, a 62.5 kg skier is pulled up the slope, which is at an angle of 8.2° with the horizontal. What is the magnitude Frope of the force on the skier from the rope when (a) the magnitude v of the skier's velocity is constant at 2.00...

im having a lot of trouble with this one also: A 2.0 kg wood block is launched up a wooden ramp that is inclined at a 30 degree angle. The block's initial speed is 10m/s. The coefficient of kinetic friction of wood on wood is .200. What speed does it have when it slides back down to its...

hey, well I am doing a project and the title is 'investigating how the distnce traveled by a ball bearing rolling down a slope affects time taken' so basically how the distance of travel (independent variable) effects the time taken to reach the end of the ramp. and, the ball starts from rest...

Derive the slope of a track where a sphere having frictional coefficient u maintains constant velocity v.

I haven't done this yet (Yeah, I know I should have at my age but the last time I did it in class with proper practice was at least 3 years ago so, thankfully, this will be like review.) so I wanted to check my answer before turning it in... If we were to estimate the horizontal distance for...

A wedge with mass M rests on a fricitonsless horizontal table top. a block with mass m is placed on the wedge. There is no friction between the block and the wedge. The system is released from rest. q1: calculate the accelration of the wedge now why would the wedge have any accelration at...

"Skier on hemispherical slope" problems Greetings--I'm stuck on a mechanics question: Suppose you had a skier at the top of a hemispherical ski slope. S/He has some initial velocity. What is the maximum such velocity such that the skier maintains contact with the ski slope? Similarly, how...