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a cube of ice is taken from the freezer at -77degc and placed in a99g aluminum calorimeter filled with297g of water at
the way that we quantify inertia is with mass if an object object consist of two different kinds of masses one mass is
a 37 kg box of running shoes slides on a horizontal frictionless table and collides with a 24 kg box of ballet slippers
after a completely inelastic collision two objects of the same mass and same initial speed are found to move away
puck 1 of mass m1 030 kg is sent sliding across a frictionless lab bench to undergo a one-dimensional elastic
an object is placed 100 m in front of a converging lens of focal length 051 m which is 200 m in front of a plane mirror
a bartender slides a drink along a bar to a customer seated 3 metres away in the positive x direction due to friction
a capacitor has a very large capacitance of 10 f the capacitor is charged by placing a potential difference of 2v
a paddle wheel frictionally adds thermal energy to an ideal monatomic gas in a sealed insulated container the paddle
an electrical outlet for an electric stove provides a potential difference of 240 v rms find the amplitude of the
a long thin rod of mass m 2 kg and length l 75 cm is free to rotate about its center as shown two identical masses
an 81-kg person puts on a life jacket jumps into the water and floats the jacket has a volume of 31 10-2 m3 and is
a superball with a mass m 616 g is dropped from a height h 224 m it hits the floor and then rebounds to a new height
a construction crew pulls up an 875-kg load using a rope thrown over a pulley and pulled by an electric motor they lift
a spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position a 487-g
a 460 g bullet moving at 616 ms strikes a 670 g wooden block at rest on a frictionless surface the bullet emerges
the speed of the fastest-pitched baseball was 410 ms and the balls mass was 145 ghow many joules of kinetic energy did
if the threshold frequency for platinum is 13x1015 s-1what is the range of frequencies that do not eject an
measuring the speed of sound a student investigator is measuring the speed of sound by looking at the time for a brief
a potters wheel having a radius 053 m and a moment of inertia of 149 kg middot m2 is rotating freely at 46 revmin the
at some instant the velocity components of an electron moving between two charged parallel plates are vx 190 105 ms
an unknown element of mass 0250 kg initially at 950degc is dropped into 0400 kg of water c 4186 jkgbulldegc at 200degc
a train consists of 4300kg locomotive pulling two loaded boxcars the first boxcar has a mass of 12700 kg and the second
a 45db sound wave strikes an eardrum whose area is42multiplied by10-5m2a how much energy is absorbed by the eardrum per
a refrigerator uses 400 j of work to extract 900 j from a heat reservoir at 000degc what is the coefficient of