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it has been found that on average galaxies are moving away from earth at a speed that is proportional to their distance
an automobile tire is rated to last for 35000 miles to an order of magnitude through how many revolutions will it
an electron is accelerated by a constant electric field of magnitude 280 nca find the acceleration of the electronms2b
with what speed must a ball be thrown vertically from ground level to rise to a maximum height of 35 mhow long will it
a ball of moist clay falls 177 m to the ground it is in contact with the ground for 150 ms before stopping what is the
starting from rest a 12 cm diameter compact disk takes 30s to reach its operating velocity of 2000 rpm assume angular
a 2 kg book is lying on a 075 m high table you pick it up and place it on a bookshelf 225 m above the floor how much
a small hollow tube is glued to a speaker in a vertical manner the speaker is set to play a single tone such that it
a proton accelerates from rest in a uniform electric field of 644 nc at some later time its speed is 114 106 msa find
the diagram below shows a mass moving toward the spring with an initial speed of v0 the mass then collides with the
a pyramid has a height of 503 ft and its base covers an area of 120 acres see figure below the volume of a pyramid is
two motorcycles are traveling due east with different velocities however four seconds later they have the same velocity
an automobile starts from rest and accelerates to a final velocity in two stages along a straight road each stage
a sprinter explodes out of the starting block with an acceleration of 44 ms2 which she sustains for 12 s then her
the space shuttle travels at a speed of about 750 103 ms the blink of an astronauts eye lasts about 100 ms how many
the weight of an object is the product of its mass and the acceleration of gravity where if an objects mass is what
an object that is launched straight up from the ground reaches maximum height h and falls straight back down to the
to start a jump this insect can accelerate at 4ms2 over a distance of 20mm what is the upward velocity it takes off at
how much work is done by the motor when the position of the arm is moved from x 0200 m to x 0750 m if the work is
a mass of 062 kg attached to a spring with a spring constant of 55 nm is set into simple harmonic motion what is the
a hard-thrown tennis ball is moving horizontally when it bangs into a vertical concrete wall at perpendicular incidence
a river of width l moves uniformly with speed va canoe is to be paddled at a constant speed c with respect to the river
the cgs unit for measuring the viscosity of a liquid is the poise p 1 p 1 gsmiddotcm the si unit for viscosity is the
suppose that the electric potential outside a living cell is higher than that inside the cell by 0069 v how much work
two water waves meet at the same point one having a displacement above equilibrium of 17 cm and the other having a