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two guns aimed at 10 degrees above the horizontal are fired at the same time bullet a travels at twice the speed of
king arthurs knights fire a cannon from the top of the castlewall the cannonball is fired at a speed of 54 ms and at an
a rope attached to a 150kg wood sled pulls the sled up a 200 degree snow-covered hill a 130kg wood box rides on top of
a vertical cylinder with a heavy piston contains air at 320 k the initial pressure is 335x105 pa and the initial volume
a 110-mol sample of hydrogen gas is heated at constant pressure from 304 k to 422 ka calculate the energy transferred
in a constant-volume process 201 j of energy is transferred by heat to 097 mol of an ideal monatomic gas initially at
a how many atoms of helium gas fill a spherical balloon of diameter 306 cm at 220degc and 100 atmb what is the average
the sun transfers enegry to the earth by radiation at a rate of approximately 100kw per square meter of surface if this
a spacecraft is in orbit around a planet the radius of the orbit is 31 times the radius of the planet which is r 71455
can you please help me in reaching her destination a backpacker walks with an average velocity of 137ms due west this
during normal operation a computers hard disk spins at 5400 rpm if it takes the hard disk 84 s to reach this angular
a 0700-kg ball is on the end of a rope that is 240 m in length the ball and rope are attached to a pole and the entire
a model rocket is fired vertically from rest it has a net acceleration of 185 ms2 after 13 s its fuel is exhausted and
the initial speed of a cannon ball is 020 kms if the ball is to strike a target that is at a horizontal distance of 30
an elevator cable winds on a drum of radius 800 cm that is connected to a motora if the elevator is moving down at 060
an object is placed at a distance of 28 cm from a thin convex lens the lens has a focal length of 9 cm what are the
a circular wire loop of area 018m squared carries a current of 4 a the coil lies in a horizontal plane with the current
a 20 micro f capacitor is connected to a 60 v battery and becomes fully charged the battery is removed and a slab of
if a 50 ohm toaster is connected in parallel to two 120 w bulbs and 120 v is applied across the light bulbstoaster
a coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy
an electric fan is turned off and its angular velocity decreases uniformly from 500 revmin to 200 revmin in a time
a weight lifter raises a 1093 n weight a vertical distance of 160 m in a time interval of 205 s compute the power
a spring with a force constant of 1645 nm is compressed 111 cm find the work done by the force compressing the
at the intersection of texas avenue and university drive a yellow subcompact car with mass 950 kg traveling east on
force of a baseball swing a baseball has mass 0145 kga if the velocity of a pitched ball has a magnitude of 450 ms and