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a worker drops a hammer from a ledge that is 411 meters above the ground how long does he have to warn the people on
the water main that feeds my home has a pipe diameter of d 10cm the hose with which i water my plants has a diameter
two boys are sliding toward each other on a frictionless ice covered skating rink jack having mass 450 kg is gliding to
an emergency rescue craft in the form of a spherical balloon of radius 300 m holds a number of survivors after their
explain why the ship does not sink despite the size yet a small stone sinks when in the ocean thank
show a clear diagram of two magnets show the direction of the magnetic fields indicate the north and south
an oil tanker sailing west has an engine problem it coasts to a stop in 050 h moving 10 km in a straight line calculate
a physics student in lab is pushing a block of mass 95 kg on a rough surface with a coefficient of static friction of
the viscosity of blood is eta 4 times 10-3 p a middot s the pressure difference between inlet and outlet generated by
a worker on a building drops a hammer from rest off a ledge of an unknown height after watching it fall for 68 seconds
you get lost and stop at a gas station to ask for directions the attendant tells you that your destination is about 1
the work required to stretch a certain spring from an elongation of 400 cm to an elongation of 500 cm is 305 j a is the
discuss the difference between renewable and non-renewable natural resources and give example of eachdo you think it is
lindsay is planning a flight from st catherines to hamilton which lies due west of st catharines her aircraft flies at
a ball launcher on the ground is aimed straight up and it launches a baseball with an initial velocity of 490 ms up the
by holding a bike wheel mass m radius r so that it rotates freely about its vertical center axis and standing on a
a string has a length of 250 m and is fixed at the ends at a frequency of 850 hz a standing wave with 5 loops is formed
you own a mechanically ventilated swine facility the dry bulb temperature inside the facility is 50 degrees f and
1 a uniform disk of mass 1 kg is spinning on its vertical axis of symmetry remember rotational inertia of a disk is
1 a meter rule hangs motionless supported at the 30 cm mark it has a 02 kg mass hanging from the 0 cm mark what is the
1 suppose the sound pressure level of each of three individual noise sources is measured at a point such that with each
1 an artillery shell of total mass 18 kg is at rest when it explodes into three pieces each of mass 6 kg two of the
use the small angle approximation to determine the angular size of a car that is 15 m tall and is 025 mile away from
the distance to the nearest large spiral galaxy called andromeda is 24 x 1022 m how long does it take light to travel
an officer hiding at an intersection observes a car run a red light at constant speed the officer takes off in pursuit