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determine the power a car engine contributes to speeding the 1300 kilogram car up to a highway speed of 500 mih in 140
the coefficient of static friction between teflon and scrambled eggs is about 004 determine what is the smallest angle
a rod 71 cm long is uniformly charged and has a total charge of -114 microc find the magnitude of the electric field
an isotope of krypton has a half-life of 3 minutes a sample of this isotope produces 1000 counts per minute in a
an egg which is initially at rest is dropped on a hard surface and breaks we wait that any temperature change
explanation of net force on an object with zero friction on an inclined
a student applies a 15 n horizontal force on a box of weight 20 n at rest on the floor the coefficient of static
a glass windowpane in a home is 062 cm thick and has dimensions of 11 m multiplied by 16 m on a certain day the indoor
compute the temperature at which a tungsten filament that has an emissivity of 035 and a surface area of 3010-5 m2 will
an unknown substance has a mass of 0125 kg and an initial temperature of 779degc the substance is then dropped into a
a student drops two metallic objects into a 120 g steel container holding 150 g of water at 25degc one object is a 230
an aluminium cup contains 225 g of water and a 40 g copper stirrer all at 27degc a 430 g sample of silver at an initial
what mass of water at 230degc should be allowed to come to thermal equilibrium with a 157-kg cube of aluminium
a 66 kg woman cheats on her diet and eats a 643 calorie 540 kcal jelly donut for breakfasta how many joules of energy
the worlds fastest humans can reach speeds of about 11 msin order to increase his gravitational potential energy by an
an ion in a mass spectrometer is accelerated during a voltage of 45 v the ion has a mass of 6634 x 10 -26 kg it passes
in a particular region of the earths atmosphere the electric field above the earths surface has been gauged to be 150
while standing on a bridge 150 m above the ground you drop a stone from rest when the stone has fallen 320 m you throw
a rifle is aimed horizontally at a target 50 m away the bullet hits the target 20 cm below the aim pointwhat is the
in a historical movie two knights on horseback start from rest 880 m apart and ride directly toward each other to do
pendulum a small rock with mass 020 kg is fastened to a mass less string by length 090 m to form a pendulum the
a plane is flying over the devastated region around jamaica after hurricane ivan it will drop supplies of food and
consider a two lens system with focal length 10 and 5 separated with 12 cm locate the image of an object 50 cm from the
a surface charge distribution rhos2ncsquare meter exists on the body of an infinite cylinder of radius 4 m the z axis
1 consider two slabs of material by the same thickness however made of materials differing in their index of refraction