Work and Energy and Circular motion.
A stone swings on a horizontal circle at the end of a string 2.0 m long. The period of the motion is 1.2 s. How much work does the tension in the string do on the stone in .40 s? I am having much... more
physics circular motion
A physics student is whirling a bucket of water in a vertical circle of radius 1.4 meters. What is the minimum speed the bucket must maintain at the top of its path so that none of the water... more
Use the method of cylindrical shells to find the volume generated by rotating the region bounded by the given curves about the y-axis. y = x^3, y = 0, x = 1, x = 2
Maxima and Minima
A sphere is inscribed in a right circular cone. Find the dimensions of the cone if the diameter of the sphere is 16cm.
Moment of Inertia Parallel axis theorem
Two rods of length a and mass m are joined together at right angle to form a T-squre. Show that MI about center of the T pendulum is (17m*a^2)/12 using parallel axis theorem
f(x) = k + u/(1+e^(b(x-t)))What is the asymptotic behaviour for low values of x and high values of x?
Physics 101 Calculating Diameter of Hair
You stretch a strand of your hair across a laser beam and observe the diffraction pattern this produces on a sheet of paper 1.25 m from your hair strand. You mark the center of the dark regions on... more
Moment of Inertia
So I have had these questions confusing me for some time and tried googling but came up with long , hard-to-understand equations and notations and articles. So I would be glad if someone could... more
Mean Value Theorem
Function f(x)=1/x on the interval [4,9]. Find the average/mean slope of the function on this interval. Then f'(c) is equal to the mean slope, find cmy work:a) f(x)=1/x((1/9)-(1/4))/(9-4)= -1/36b)... more
Find the equation of the hyperbola if:
a). the asymptotes are y=0.5x and y=−4−0.5x, and one of the vertices is (−4, 0).b). it has x-orientation, with vertices (2, 0) and (−2, 0), and it goes through the point (4, 5sqrt(3))PLEASE HELP... more
Please help me to Solved the simultaneous equation x^2 + y^2 = 10........(1), 1/x + 1/ y = 4/3.....(1)
If a ball has a pressure of 1 bar inside and another ball has a pressure of 2 bar with the same radius then both ball are deep inside water then which ball will come first outside the water?
Find an equation of the tangent line at the given point.
A 5 kg mass hangs at the end of a cord that is attached to the ceiling of an elevator. Find the tension in the cord if the acceleration of the elevator is 3.0 m/s2 down.
Write an equation with no solutions that has the expression 3x + 6 on the left side of the equal sign. Demonstrate that your equation has no solutions.
i need help with my algebra homework
double rms speed of molecules of gas
A gas is at 200 K. If we wish to double the rms speed of the molecules of the gas, to what value must we raise its temperature?
Form a third-degree polynomial function with real coefficients, with leading coefficient 1, such that 8 plus i and 7 are zeros.
Calc 3 Extra Credit #1 Question 1
Find the area of the parallelogram having vectors u = < 1,2,1> and v= <3,1,1> as adjacent sides.
J.J.Thompson used a cathode ray instrument to measure the charge-to-mass ratio for the electron.
Consider a beam of particles travelling in the direction through electrostatic plates of between which the electrons are deflected (down) in the direction by an electric field of magnitude . A... more
SAT Math 2 -- Question involving Functions
Please help me understand the following question-- If f(2x) = x+5 and f(g(6)) = 13, then 2 * (g(6)) equals A) 6 B) 16 C) 32 D) 36 E) 64
Find the angular acceleration of the rod.
A light rod of length a can turn freely about the end A which is fixed, and the other end B is attached to a particle of mass m. The end B is joined by a string of length a to a small ring C of... more
Find the possible slopes of a line that passes through (4,3) so that the portion of the line in the first quadrant forms a triangle with an area of 27 with positive coordinate axes.
Simple harmonic motion
A small marble slides along the inside of a cup which has a cross-sectional shape;y=0.100x²,where x is the displacement from the center of the cup and y is the height of the surface above the... more