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a moving particle encounters an external electric field that decreases its kinetic energy from 9520 ev to 7060 ev as
one container is filled with helium gas and another with argon gas both containers are at the same temperature which
if the temperature of an ideal gas is doubled while its pressure is tripled by what factor does its volume
a block of wood is placed on a frictionless horizontal surface and a 700 g bullet is fired from a gun into the 100-kg
the plot below shows the acceleration of a mouse in a long straight burrow as a function of time the velocity and the
you are using a magnifying glass held against your eye to study an insect the distance between the insect and your
a uniform disk has a mass of 46 kg and a radius of 02 m the disk is mounted on frictionless bearings and is used as a
a baseball is thrown horizontally from from a height of 4410 mabove ground with a speed of 335 ms where is the
power to a cooling fan is turned off when it is turning at 720rpm the fan makes 1350 revolutions before it comes to
a scout troop is practicing its orienteering skills with a map andcompass first they walk due east for 12 km nextthey
two forces act on a 24-kg object one force has magnitude 65 n directed 59deg clockwise from the positive x-axis and the
fuel aboard a rocket has a density of 2870 kgm3 and is ejected with a speed of 2650 ms if the engine is to provide a
a speedboat starts from rest and accelerates at 215ms2nbspfor 835 s at the end of this time the boatcontinues for an
the uniform beam below is 40meters long and has mass 300kg find the tension in the rope and the force exerted by the
a moving particle encounters an external electric field thatdecreases its kinetic energy from 9820 evto 7470 ev as the
an unusual spring has a restoring force of magnitude f 200 nmx 100 nm2x 2 where x is the stretch of the spring from
a 15 cm diameter suction cup is pressed to the ceiling a 51kg weight hangs from the center of the cup by string neglect
one mole of hydrogen one mole of nitrogen and one mole if oxygen are held in a 224103 cm3 enclosed vessel at 20c find
two cars cover the same distance in a straight line car a coversthe distance at a constant velocity car b starts from
an electric field of magnitude 2210 nc is applied along the xaxis calculate the electric flux through a rectangular
a uniform sign is supported against a wall at point p as shown in the figure if the sign is a square 090 m on a side
a certain person in a typical conversation speaks at a sound level of 63 db the music at a certain rock concert reaches
picture a wave with crests every 18m apart if a crestpasses you every 26s what is the propagation speed of the