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spring is compressed by 00925 mand is used to launch an object horizontally with a speed of383 ms if the object were
an extreme skier starting from rest coasts down a mountain thatmakes an angle of 393 deg with the horizontal the
a small mirror is attached to a vertical wall and it hangs adistance of 159 m above the floor the mirror is facing
by what factor does the resistance of a copper wire change if its length doubles and its diameter triples if the
a box is fixed to a rope and is kept moving uniformly on a circleof radius 1m the rope exerts a force of 10n on the box
a roller coaster at the six flags great america amusement parkin gurnee illinois incorporates some clever design
explain why the extrapolated temperature is used to determine the maximum temperature of the mixture rather than the
the solar panels on the roof of a house measure 40 mby 53 m assume they convert12 of the incident em waves energy to
if 0120 l of 15 mm na6si2o7 is allowed to evaporate until the volume is reduced to 300 ml what will be the
an ideal fluid with density of 085 x103kgm3 flows at 70 ms through a level pipe with aradius of 050 cm the pressure in
write the electron configurations for p and cl using both the spdf notation and orbital box diagrams describe the
an open vessel containing a water b benzene c mercury stands in a laboratory measuring 60 m x 53 m x 32 m at 25 deg
a ball is thrown upward at a speed v0 at anangle of 530deg above the horizontal it reaches a maximumheight of 84 m how
a locomotive slows from a speed of 26 ms to 0 in 18s what is the distance traveled in
a two-stage rocket moves in space at a constant velocity of4640 ms the two stages are then separated by a small
the enthalpy of a solution of kbr in water is about 198 kjmol nevertheless the solubility of kbr in water is relatively
a thin rod is rotating at anangular velocity of 70radsec about an x axis that isperpendicular to the rod at its center
in a football game a receiver is standing still having justcaught a pass before he can move a tackler running at a
determine the term symbols for a 4s13d1electronic configuration which is the ground state
how much power is radiated by a tungsten sphere emissivitye035 of radius 21 cm at a temperature of 22 cin wif the
sulfamic acid hso3nh29710 gmol is a primary acid that can be used instead of khpthe reaction with hso3nh2 with naoh is
a convex lens is held over a piece of paper outdoors on a sunny day when the paper is held 30 rm cm below the lens the
a 220 kg floodlight in a park issupported at the end of a horizontal beam of negligible mass thatis hinged to a pole a
a baseball m 155 g approaches a bat horizontally ata speed of 391 ms 875 mih and is hit straight back at a speedof 486
a spring with constantk 40 nm is at thebase of a frictionless 30 inclined plane a 05 kg blockis pressed against the