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a thin uniform rod length 109 m mass 309 kg is pivoted about a horizontal frictionless pin through one of its ends
a small circular object with mass m and radius r has a moment of inertia given by i cmr2 the object rolls without
a man is lifting a 50kg rock this weelbarrow is the first kind of lever and the middle of the wheel is the fulcrum the
a house at the bottom of a hill is fed by a full tank 50m deep and is connected to the house by a 110m long pipe at an
river pascal with a volume flow rate of 70times105 ls joins with river archimedes which carries 107times106 ls to form
a 10-cm-diameter pipe widens to 20 cm then narrows to 05 cm liquid flows through the first segment at a speed of 40
a group of students are camping in the middle of the forest on a very dark night their torch batteries went flat hours
water flowing through a 29 cm-diameter pipe can fill a 300l bathtub in 36 minwhat is the speed of the water in the
a truck horn emits a sound with a frequency of 246 hz the truck is moving on a straight road with a constant speed if a
1 a pendulum consists of a mass m 0080 kg hanging from a flexible string of length l the string is very thin very
a musician finds that a simple pipe resonates with a fundamental standing wave of of 440hz in a room at temperature 21
a 12 kg piece of zinc at 65c is placed in a container of water the water had a mass of 20 kg and a temperature of 12c
a 238 kg cast-iron car engine contains water as a coolant suppose the engines tempera- ture is 33c when it is shut off
a string on a guitar is stretched between two points 350 cm apart with a tension of 650 n the masslength of the string
an elementary particle called a pi meson or pion for short has an average lifetime of 2610-8 s when at restfind how far
a solid disk is rotating with an initial angular speed of 600 revolutions per minute it is slowed with an angular
a two meter long string is wrapped around the outside edge and the ring is dropped allowing the string to unwind as the
a skier starts at the top of a hill angled at 30 degrees from the horizontal the hill is 100 meters long if the
a large grindstone wheel a solid cylindrical disk made of stone has a mass of 30 kg and a radius of 50 cm it is
sound from the siren of an emergency vehicle has a frequency of 7500 hz and moves with a velocity of 3430 ms what is
a pendulum with a mass of 1kg on a light string 1 meter long is dropped from a position with the string held level
a force of 4000 n is exerted on a 1250 kg car while moving a distance of 3 m how much work was done on the
one of the great difficulties in landing on venus is dealing with the crushing pressure of the atmosphere which is 92
a car rounds a circle of radius 150 m going at 105 mswhats the cars acceleration if its speed is constantcompute the
a particle with a charge of q -560 nc is moving in a uniform magnetic field of b -123 t z the magnetic force on the