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The speed of water flowing in a pipe with an inner diameter of 24 cm is 4 m/s. The pipe then shrinks down to a 8 cm inner diameter with both pipes flowing full. Find the speed in the smaller part of the pipe.
A 30 m beam is supported at the ends by two walls. The beam weighs 190 N and supports a 347 N air unit 5 m from the right wall. Find the force the left wall must support.
A water tower stores 28 m vertical feet of water. What is the absolute pressure? patm = 101,300 Pa
A 143 kg crate hangs from a single cable. A rope pulls with 286 N of force to the right. Find the angle the cable makes relative to the vertical.
A hydraulic press has a small piston with a diameter of 4 cm and a large piston with a diameter of 18 cm. What force will result on the large piston when a force of 118 N is applied to the small piston?
Find the mass of a cylinder if it has a density of 7.9 g/cm3 and a radius of 11 cm and a height of 3 cm. Express in grams.
a 310 g- paperback book rests on a 1200 g -textbook. a force is applied to the textbook and the two books accelerate
If the ball is free from rest at a height of 0.67 above the bottom of the track on the no-slip side, what is its angular speed when it is on the frictionless side of the track? Suppose the ball is a solid sphere of radius 2.2 and mass 0.14.
One component of a magnetic field has a magnitude of 0.070 T and points along the +x axis, Find the magnitude of the net magnetic force that acts on the particle
a bullet is fired through a board 12.0 cm thick in such a way that the bullets line of motion is perpendicular to the
A 75g lead sinker at 90 degrees celsius is placed in 500 cm^3 of water at 20 degrees celsius. What is the final temperature of the sinker
Find the distance between adjacent dark spots from a double slit diffraction pattern if the wavelength of light is 500 nm, the distance between the slits is 1 mm
Mary e is a 30 year old female who recently started having symptoms of muscle weakness. She says that she gets fatigued easily and has even had some numbness in her fingers. She is afraid to drive at night because she is having trouble “seeing cle..
a) How much electric charge is inside the cube? b) Can you guess what charge distribution inside (and outside) the cube would generate this kind of electric field?
a helicopter has 3.0 m long rotor blades rotating at an angular speed of 63 rad/s. What is tangential speed of each blade tip
q1. a particular guitar string is supposed to vibrate at 195 hz but it is measured to actually vibrate at 210 hz. by
light of frequency 9.95 x 10 14 hz ejects electrons from the surface of silver. if the maximum kinetic energy of the
The pole strength of one magnet is four times the pole strength of the other magnet. Find the pole strength of each magnet.
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