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consider a spiral galaxy that is moving directly away from earth with a speed v 3600 106 ms at its center as shown in
sams job at the amusement park is to slow down and bring to a stop the boats in the log ride if a boat and its riders
a proton with an initial speed of 800000 ms is brought to rest by an electric fielda what was the potential difference
a thin uniform metal bar 3m long and weighing 85 n is hanging vertically from the ceiling by a frictionless pivot
a mass-less pan hangs from a spring that is suspended from the ceiling when empty the pan is 51 cm below the ceiling if
a 681-kg basketball player jumps vertically and leaves the floor with a velocity of 192 ms upward take upward as
two blocks of masses m1 200 kg and m2 360 kg are each released from rest at a height of h 480 m on a frictionless
a high-speed flywheel in a motor is spinning at 450 rpm when a power failure suddenly occurs the flywheel has mass 400
a projectile of mass m is fired from the surface of the earth at an angle a from the vertical where a 075 radians the
a metal bar with a resistance of 30 ohm is rotated around its center in a magnetic field of strength 5 t which is
the drill used by most dentists today is powered by a small air-turbine that can operate at angular speeds of 320000
the dielectric constant for polystyrene filling is 25 a coaxial cable consists of a cylindrical metal sheath with
a horizontal force of 35n is used help push an 44kg box up a 13meter incline what is the work done by this applied
a bicycle wheel of radius 25 cm rolls a distance of 30 km how many revolutions does the wheel make during this
a solid cylinder radius 0200 m height 0170 m has a mass of 198 kg this cylinder is floating in water then oil the
an object is solid throughout when the object is completely submerged in ethyl alcohol its apparent weight is 150 n
a 48000-kg space probe is traveling at a speed of 12000 ms through deep space retrorockets are fired along the line of
a pitcher throws a curveball that reaches the catcher in 061 s the ball curves because it is spinning at an average
an object weighing 347 n in air is immersed in water after being tied to a string connected to a balance the scale now
a spherical hydrogen-filled balloon is used to lift a load of 5705 n in addition to the weight of the hydrogen suppose
a rectangular fish tank measures 30 cm by 75 cm by 40 cm high the tank is filled with water to a depth of 37 cmwhat is
a series rlc circuit has r 500 l 351 mh and c 883 pf what is the impedance of the circuit at
an rlc series circuit has l 0324 h and c 693 f the source has a peak voltage of 442 va what is the angular resonant
a 233 k resistor is in series with a 180 f capacitor in an ac circuit the rms voltages across the two are the samea
a glass rod rubbed with silk acquires a charge of 10times10-9 c1- what is the charge on the silk2- how many electrons