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A fire hose exerts a force on the person holding it. This is because the water accelerates as it goes from the hose through the nozzle. How much force is required to hold a 7.5 cm-diameter hose delivering 460 L/min through a 0.80 cm-diameter nozzle? answer in N
At 12°C, a brass cube has an edge length of 25 cm. What is the increase in the cube's surface area when it is heated from 12°C to 97°C
An object is placed 60 cm to the left of a converging lens having a focal length of 35cm. Calculate the magnification of the final image
A potter's wheel is a uniform solid disk of diameter 0.72m and a mass of 60kg. what minimum total friction force must the potter supply to the disk if her hands are acting at the edge of the disk
compute the impedance of a series r-l-c circuit at angular frequen2cy of 500 rads. r 200ohms l.9 h and c 2uf. what is
Two particles each weigh 1.04 N. Find the magnitude of their mutual gravitational force when they are separated by a distance of 20.3 cm
Your thoughts about illustrate what information is critical to collect at the outset of or early on in the interview process. Explain the upsides and downsides/concerns of having to gather this information and address related issues in a first se..
The Dielectric Constant for polystyrene filling is 2.5. A coaxial cable consists of a cylindrical metal sheath with interior radius b=3.2cm surrounding a wire with exterior radius a=0.8cm
A point charge of +Q is placed at the center of a square, and asecond point charge of -Q is placed at the upper-left corner. It is observed that anelectrostatic force of 2.0 N acts on the positive charge at the center.
a 150 g copper bowl contains 220 g of water both at 20.0 degrees celsius. a very hot 300 g of copper cylinder is
a beam of hydrogen molecules h2 is directed toward a wall at an angle of 55deg with the normal to the wall. each
The oxygen molecule (O2) contains two oxygen molecules, each with mass 2.7x10^-27 kg and a bond distance of 1.24x10^-10 m. Calculate the following: The moment of inertia for rotation about an axis perpendicular to the bond.
As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at your supply of food. What will be the acceleration of the bags when you let go of the anchor bag in m/s^2
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