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1 two bowling balls each with a positive charge of 25 x 10 -5 are located 230 cm apart the size of the electric force
light that has a frequency of about 520 1014 hz a wavelength of about 578 nm appears yellow to our eyes what is the
you need an annotated bibliography done for my forensic anthropology class it has to be 10 journal articles or book
photons of a certain ultraviolet light have an energy of 649 10-19 ja what is the frequency of this uv lighthzb use
a 1800 g mass starts from rest and slides a distance l down a frictionless 26 incline where it contacts an unstressed
obtain an explicit formula for the velocity of the ball v leaving the spring gun in terms of the measured quantities vh
the potential energy of diatomic molecule is given byuar12 - br6where r is the separation of the two atoms of the
you agree to build a backyard rope tow to pull your siblings up a 20-m slop that is tilted at 15 degrees relative to
how much work is required to accelerate a 1440kg cylinder from rest to 100 revolution per second assume a solid
consider the following statement an imbalance of forces causes an object to move is this statement true in all
two children a and b with masses m and are holding the ends of a massless rope of length l and sliding on a
1 a 12-kg block on a horizontal frictionless surface is attached to a light spring force constant 080 knm the block is
a 100 g lead rie bullet is red with a speed of v into a ballistic pendulum with mass 1000 kg suspended from a cord 100
a 1000kg train wagon moves at 20ms 500kg of material fall vertically into the wagon what is the final speed of the
the head of a golf club that has a mass of 200g moves at 55ms before hitting a golf ball that has a mass of 46gthe ball
a bullet of mass 5 g strikes and embeds itself in a wood block with mass 2 kg initially the block is suspended and at
a pulley system has a mechanical advantage of 20 if one is trying to raise a piano with a mass of 377 kg at a constant
1 spinning the solar nebularemember that the formula for angular momentum l is l mvr where m is the mass of the
an object is in free fall and at some point above the ground it has 43 joules of kinetic energy and 24 joules of
a mass of 10 kg is moving at 53 ms on a horizontal surface and the enitre surface has friction with a coefficient of
a mass of 7 kg is moving at 79 ms on a horizontal surface with frictionnbspif y 0 m for gravitational potential energy
1 a race car traveling at a tangential speed of 90 ms goes around a curve that has a radius of 50m the combined mass of
a coin is placed 29cm from the center of a horizontal turntable initially at rest the turntable begins to rotate when
a car of mass 409 kg travels around a flat circular race track of radius 156m the coefficient of static friction