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to stretch a certain spring by 220 from its equilibrium position requires 700 of work what was the maximum force
to stretch a certain spring by 220 from its equilibrium position requires 700 of work what is the force constant of
a constant horizontal pull of 880 drags a box along a horizontal floor through a distance of 195 suppose that the same
given a planets circumference and using the the universal gravitational constant how do i obtain a planets mass and
what happens to the heat and temperature during a phase change for example solid to liquid liquid to gas or solid to
what must the separation be between a 70 kg particle and a 35 kg particle in order for their gravitational attraction
a plane weighing 220 kn 25 tons lands on an aircraft carrier the plane is moving horizontally at 67 ms 150 mih when its
a roller coaster car mass 988 kg including passengers is about to roll down a track the diameter of the circular loop
a boeing kc-135a airplane has a wingspan of 399 m and flies at a constant altitude in a northerly direction with a
at a certain location the earths magnetic field has a magnitude of 5510-5 t and points in a direction that is 76
a 130-microf capacitor is charged to a potential of 600 v and then discharged through a 185- resistora how long does it
at rush hour the noise from a highway is 104wm2 with 100 cars passing a given point a minute at night the average noise
an archer pulls her bowstring back 0360 m by exerting a force that increases uniformly from zero to 230 na what is the
a long rope is suspended from the ceiling waves are started from the bottom traveling up the rope it is observed that
a 200times104 kg railroad car is rolling at 400ms when a 5000kg load of gravel is suddenly dropped in what is the cars
when a650-v emf device is placed across two resistors in series a current of 100 a is flowing in each of the resistors
a ball is dropped from a height of 4 m and makes an elastic collision with the ground assume that no mechanical energy
calculate the thermal broadening for a ca ii k line at 3933 a given stellar photospheric temperatures of 30006000 and
a continuous line of charge lies along the x axis extending from x x0 to positive infinity the line carries positive
a machine gun fires 25-g bullets at the rate of 4 bullets per second the bullets leave the gun at a speed of 1000 ms
a projectile is launched with a momentum of 200 kg bull ms and 1000 j of kinetic energy what is the mass of the
a hene helium-neon laser has a beam power of 500 mw at a wavelength of 656 nm assume the beam is focused by a lens to a
a forensic scientist is using a standard biological microscope with a 15 x objective and a 5 x eyepiece to examine a
a ball is attached to a horizontal cord of length l whose other end is fixed a peg is located at a distance d directly
a child knocks a 12 kg vase off of a table 15 m above the groundawhat is its potential energy before it begins to