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a metal ball with a mass of 381middot10-6 kg and a charge of 521 mc has a kinetic energy of 477middot108 j it is
plutos moon charon orbits pluto every 64 days with a semimajor axis of 19700 kilometers calculate the combined mass of
consider the conical pendulum a mass on the end of a string with the other end of the string fixed to the ceiling given
a 500-kw motor is used to pull a 200-kg crate up a 150deg-incline of length 400 m the coefficient of friction is 0300
a 63 ohms resistor an 84 uf capacitor and a 36 mh inductor are connected in series in an ac circuitcalculate the
a device known as atwoods machine consists of two masses hanging from the ends of a vertical rope that passes over a
a mass m hangs from a uniform spring of constant ka what is the period of oscillations in the systemb what would it be
an uncharged capacitor and a resistor are connected in series to a source of emf if emf 600 v c 210 microf and r 100
sam 75 kg takes off up a 50 m high 10 degree frictionless slope on his jet powered skis the skis have a thrust of 200 n
a person body mass72 kg is taking off for a long jump ground reaction forces fgx 250 n and fgz 900 n calculate the
a runner with a weight of 6867 n accelerates at a constant rate from 0 to 45 ms in the first 2 seconds of a 100 m
a 47-g object moving to the right at 18 cms makes an elastic head-on collision with a 94-g object that is initially at
an automobile battery has an emf of 1260 v and an internal resistance of 0076 0 the headlights together have an
a battery has an emf of 150 v the terminal voltage of the battery is 102 v when it is delivering 240 w of power to an
a car is stopped for a traffic signal when the light turns green the car accelerates increasing its speed from zero to
the distance between a carbon atom m 12 amu and a nitrogen atom m 14 amu in a cn molecule is 01 nm how far from the
a 370-g block is dropped onto a vertical spring with spring constant k32 ncm the block becomes attached to the spring
a helicopter flies over the arctic ice pack at a constant altitude towing an airborne 117-kg laser sensor which
the pilot of an airplane notes that the compass indicates a heading due west the planes speed relative to the air is
a parallel plate capacitor with a plate area of 220 cm2 and air in the space between the plates which are separated by
a skier is pulled up a slope at a constant velocity by a tow bar the slope is inclined at 249 deg with respect to the
a 100 pf capacitor is charged to a potential difference of 70 v and the charging battery is disconnected the capacitor
a 988-kg baseball player slides into second base the coefficient of kinetic friction between the player and the ground
an air puck of mass 0250 kg is tied to a string and allowed to revolve in a circle of radius 114 m on a frictionless
a certain solid-propellant model rocket engine releases a total of 6000 j as it burns if this engine carries a model