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a beam of protons is moving toward a target in a particle accelerator this beam constitutes a current whose value is
the potential difference between the plates of a capacitor is 137 v midway between the plates a proton and an electron
the membrane that surrounds a certain type of living cell has a surface area of 74 x 10-9 m2 and a thickness of 11 x
a stone is thrown upward from the top of a building at an angle of 300deg to the horizontal and with an initial speed
a space traveller weighs herself on earth at a location where the acceleration due to gravity is 981 ms2 and finds a
a car with mass 20000kg is moving from rest with acceleration 050ms2 what is its speed after 40s of motion what is its
a 410-kg child swings in a swing supported by two chains each 308 m long the tension in each chain at the lowest point
a proton accelerates from rest in a uniform electric field of 600 nc at one later moment its speed is 150 mms
in a veeertical jump and reach test a 60 kkg ssstudent jumps 60cm while a 90 kg student jumps 45 cm assumming both
a baseball is hit so that it travels straight upward after being struck by the bat a fan observes that it takes 290 s
a bicyclist rides 301 km due east while the resistive force from the air has a magnitude of 771 n and points due west
a person pushes a 123-kg shopping cart at a constant velocity for a distance of 165 m on a flat horizontal surface she
a block of mass 20kg is sliding down an incline plane with no friction the plane makes an 30 degree angle theta with
a cyclist is coasting at a steady speed of 16ms but enters a muddy stretch where the effective coefficient of friction
a 6-mu or micro f capacitor is charged to 120 v and is then connected across a 700-ohm resistorwhat is the initial
a motorcycle has a constant speed of 277 ms as it passes over the top of a hill whose radius of curvature is 168 m the
the electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 16 x
an inductor carries a current of 25 a and the magnetic energy stored in the inductor is 0035 j what is the
a simple pendulum has a mass of 0650 kg and a length of 200 m it is displaced through and angle of 70 degrees and then
a child in a swing starts from rest while pulled back at an angle of 30 degrees from vertical the swing is released and
a 64-kg runner rounds a circular track of radius 637 m at a constant 530 ms find the magnitude of her momentum changes
a block slides down a frictionless ramp of height 037 meters at the bottom it reaches a horizontal plane the
a series rlc circuit consists of a 49-ohm resistor and a 50-uf capacitor the ac voltage source operates at 600 h if the
youre using a rope to pull a sled at constant velocity across level snowwith coefficient of kinetic friction 0050
1an observer fails to check the bubble and it is off two divisions on a 250 ft sight what error results for a