What is the tension in the string at certain position
A 200 g object tied to a string 80 cm long travels in a vertical circle of radius 80 cm. At the top of the circle the speed of the object is 4.5 m/s. What is the tension in the string at this position?
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A block of mass 5.0 kg is pulled across a horizontal surface at a constant speed by a force 14 N directed at 35 degrees from the horizontal. What is the coefficient of kinetic friction between the black and the surface?
Define the terms maximus and minimum of a function. What is the formula that gives the x- coordinate of the vertex for a parabola?
First draw the system with the x-y plane as the page you are drawing on and the y-axis as the vertical axis. Make the downward direction the positive y-direction and the positive x-direction to the right. Indicate the direction of the magnetic fie
Find the volume of the solid that lies within the sphere x^2+y^2+z^2=64, above the xy plane, and outside the cone z=7sqrt(x^2+y^2).
A 0.40 kg mass attached to the end of a string swings in a vertical circle of radius 1.8 m. At an instant when the string makes and angle of 40 degrees below the horizontal the speed of the mass is 5.0 m/s. What is the tension in the string at thi
Determine the equation of the directrix of the parabola which includes the origin, is symmetric about the y-axis and passes through (6, 3)?
A uniform electric field with a magnitude of 6270 N/C points in the positive x direction. Find the change in electric potential energy when a +12.5 µC charge is moved 5.16 cm in the following directions. (a) the positive x direction (b) the
Cable C requires 2 black, 1 white, and 2 red. If 100 black wires, 110 white wires, and 90 red wires were used, then how many of each cable were made?
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