Find two different parametric equations for y=2x-3

david ifori
2022-07-05

Find two different parametric equations for y=2x-3

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asked 2020-11-03

An extreme skier, starting from rest, coasts down a mountainthat makes an angle $25.0}^{\circ$ with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.200. She coasts for a distance of 11.9 m before coming to the edge of a cliff. Without slowing down, she skis offthe cliff and lands down hill at a point whose vertical distance is 4.20 m below the edge. How fast is she going just before she lands?

asked 2021-01-31

A straight vertical wire carries a current of 1.20 A downward in a region b/t the poles of a large superconducting electromagnet,where the magnetic filed has magnitude B = 0.588 T and is horizontal. What are the magnitude and direction of the magnetic force on a 1.00 cm section of the wire that is in this uniform magnetic field, if the magnetic field direction is a) east? b)south? c) 30 degrees south of west?

According to the solutions, the force stays the same for parts $a,b,c:F=I\cdot l\cdot B=7.06\times {10}^{-3}$ but for part c,why isn't the 30 degree angle used to calculate the force?

asked 2021-02-21

A 5.00 kg package slides 1.50 m down a long ramp that is inclined at $12.0}^{\circ$ below the horizontal. The coefficient of kinetic friction between the package and the ramp is k =0.310. Calculate

(a) the work done on the package by friction (b) the workdone on the package by gravity (c) the work done on the package bythe normal force (d) the total work done on the package (e) Ifthe package has a speed of 2.20 m/s at the top of the ramp, what isits speed after sliding 1.50 m down the ramp?

asked 2021-03-07

You are on the roof of the physics building, 46.0 m above the ground. Your physics professor, who is 1.80 tall, is walking along side the building at a constant speed of 1.20 m/s. If you wish to drop an egg on your professor's head, how far from the building should the professor be when you release the egg? Assume that the egg is in free fall.Take the free fall acceleration to be $9.80\text{}\frac{m}{{s}^{2}}$

asked 2022-05-28

Which expression is equivalent to ? Assume *x* 0 and .

asked 2022-04-23

A set of data consists of 150 observations. How many classes will you recommend?

asked 2022-03-27

How can I solve this differental equation?

$\begin{array}{rl}(\frac{1}{x}-{y}^{2}\frac{1}{(x-y{)}^{2}})dx& +({x}^{2}\frac{1}{(x-y{)}^{2}}-\frac{1}{y})dy=0\phantom{\rule{1em}{0ex}}?\end{array}$

I have this as a part of my homework, and there were like 20 other differential equations that I easily solved, but this one stood out.

This is not linear, not separable. I don't know how to approach this problem. If you could tell me to what class this kind of equation belongs, and some methods to solve them, I would be very very glad.