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a student makes a short electromagnet by winding 160 turns of wire around a wooden cylinder ofdiameter d 40 cm the
emilie wishes to fly to phun city a place where physics geeksrule the land loacted 800 km n of her present postion her
a cart of a mass 300 kg is pushed up a track at an angle of44 degrees from the bottom to a position that is 30m higher
a 30 kg girl whos running at 3 ms jumps on a stationary 10 kg sled on a frozen lake how fast does the sledwith the girl
a 54 kg ice skater is moving at 39 ms when she grabs theloose end of a rope the opposite end of which is tied to apole
an archer shoots an arrow toward a 300g target that is sliding in her direction at a speed of 250 ms on a smooth
a fighter pilot dives his plane toward the ground at400 ms he pulls out of the dive on a vertical circle what is the
a certain molecule is made up of four atoms three of themhave mass m and are located at the vertices of an
a certain laser outputs pure blue light photon energy 31 ev with power 400 milliwatts 04watts how many photons per
a bead of mass m acted upon by a uniform graviational forcecan slide freely on a frictionless circular hoop of radius r
a 4 kg box is raised from rest adistance of 6 m by a vertical force of110 na find the work done by the forceb find the
if the acceleration of a 75 kg skydiver is 4ms2a what is the net force on theskydiverb what is the weight of the
four objects are situated along the y axis as followsa 201 kg object is at 298 m a290 kg object is at 245 m a253 kg
a 205 cm tall object is placed 300 cm to the left of aconverging lens with a focal length f1 189 cm a diverging lens
if a galaxy contains a type i classic cepheid with aperiod of 30 days and an aparent magnitude of 20 what is the
an alpha particle charge 2e mass 664x10-27 moves head onat a fixed gold nucleus charge 79e if the distance of
a can of sardines is made to move along an x axis fromx1 022 m tox2 122 m by a force given byf if0exp-036x with x in
a solid disk of radius r and mass 266 kg is spinning atangular velocity 647 rpm about a vertical axis a solid disk
a wheel rotates about a horizontal axis it has an outerradius r1 212 cm and mass m1451 kg attached to itconcentrically
a girl coast down tha hill on a sled reaching a levelsurface at the bottom with a speed of 70 ms if the coefficientof
an 870 kg block slides with an initial speed of 166 ms up aramp inclined at an angle of 274 degree with the
a student playing tetherball hits the ball so it moves in acircle around the central pole the length of the tether is
a block m 3 kg slides on a frictionless horizontal surfaceit then goes up a 15 degree incline having a coeffecient
a 4 kg object moving at 17 ms in the positive x direction has aone-dimensional elastic collision with an object
jane looking for tarzan is running at topspeed 67 ms and grabs a vine hanging vertically from a talltree in the jungle