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what is the difference between energy and powerwhat is the difference between centripetal acceleration and centrifugal
a projectile is shot directly away from earths surface neglect the rotation of the earth what multiple of earths radius
a sealed tank containing seawater to a height of 12m also contains air above the water gauge pressure of 5 atm water
two cars are in a collision at the intersection of boyd and elm tying up after-class traffic the first car mass 1050 kg
in order to heal properly from a fractured thigh a patients leg must be kept under traction in the system shown below
how much work does the electric field do in moving an alpha particle a bare helium nucleus with two protons from a
its nighttime and youve dropped your goggles into a swimming pool that is 45 m deep if you hold a laser pointer 14 m
a 6 ft tall swimmer is lying flat on his stomach at the bottom of a 5 m deep pool if the area of his eyelid is 2 cm2
why is it possible to drive a nail into a piece of wood with a hammer but it is not possible to push a nail in by
a light balloon is filled with 391 m3 of helium at atmospheric pressurea at 0degc the balloon can lift a payload of
if the total translational kinetic energy of the molecules of oxygen in a container is 15 j at room temperature what is
a 680 kg ice skater moving to the right with a velocity of 293 ms throws a 018 kg snowball to the right with a velocity
a 015 kg baseball moving at 2000 ms is slowed to a stop by a catcher who exerts a constant force of -385 n a how long
tarzan has a mass of 80 kg and is about to be attacked by a gang of amazon warriors jane has a mass of 60 kg and swings
the air inside a bicycle tire pump has 209 joules of work done on it as 927 joules of heat is conducted away from it
a bungee cord is stretched between two poles with a force of 370 n the length of the cord is 33 meters and it has a
a test tone used on a radio has a frequency of 969 hz what is the wavelength of this sound in air at normal room
a 0041 kg aluminum bullet traveling at 407 ms strikes an armor plate and comes to a stop if all its energy is converted
scientists in a laboratory produce a sound wave in a simulated environment air with a velocity of 422 ms what is the
a 438 hz sound wave travels through a substance the wavelength of the sound wave is measured to be 32 meters what is
part 1 - the real worldselect two objects with flat surfaces such as books with different covers for instance hard back
a puck on a frictionless air hockey table has a mass of 50 g and is attached to a cord passing through a hole in the
calculate the linear momentum for each of the following cases a a proton with mass 167 10-27 kg moving with a velocity
a sonar signal bounces off the ocean floor and returns 327 later if the speed of sound in salt water is 1511 ms how
a man dives off a cliff 288 m high into a pool below such that his horizon velocity is 60ms and vertical velocity is