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an earth satellite moves in a circular orbit with an orbital speed of 5900msa find the time of one revolution of the
at a playground a 19kg child plays on a slide that drops through a height of 23m the child starts at rest at the top of
a solid sphere of radius 10 cm and mass 2 kg is going down an inclined plane of height 5 m the angle of the inclined
titanium dioxide tio2 with an index of refraction of 250 is one compound that is often used as a lens coating a layer
an interferometer can be used to measure very small distances much like a caliper but with a far greater precision a
vector a and vector b have scalar product -300 and their vector product has magnitude 500what is the angle between
a football is kicked straight up into the air it hits the ground 34 later what was the greatest height reached by the
a man stands on the roof of a 190 -tall building and throws a rock with a velocity of magnitude 300 at an angle of 420
in a certain automobile engine 17 of the total energy released in burning gasoline ends up as mechanical work what is
a 162 dog is running northward at 277 while a 451 cat is running eastward at 305 their 741 owner has the same
the old lp vinyl records commonly rotated at 3333 revolutions per minutea find the period of revolution for the record
the sidereal period of the earth is 23 hours 56 minutes and 40 seconds this is the earths rotational period with
a black wood stove with surface area 46 rm m2 is made from cast iron 40 rm mm thick the interior wall of the stove is
a piece of copper at 320 degrees celsius is dropped into 14 kg of water at 17 degrees celsius if the equilibrium
four identical masses of 27 kg each are located at the corners of a square with 15 m sides what is the net force on any
during an acceleration the angular speed of an engine increases from 850 rpm to 2750 rpm in 44 s what is the average
a skier starts from rest at the top of a frictionless incline of height 200 m as shown in the figure as the bottom of
on a frozen pond a 9 kg sled is given a kick that imparts to it an initial speed of v0 25 ms the coefficient of
a 600-kg projectile is fired at an angle of 300deg above the horizontal with an initial speed of 136 102 ms from the
a 50 kg crate slides down a 600 incline with an acceleration of 19 ms2 what is the frictional force between the crate
a 1050 kg car is traveling at a speed of 25 ms when the driver sees that there is a tree across the road if the car has
a 150 g block with a charge of 600 10-5 c is placed in an electric field 3000 - 600 nca what is the electrostatic
a converging lens of focal length 8020 cm is 203 cm to the left of a diverging lens of focal length -647 cm a coin is
a car is driving directly north on the freeway at a speed of 118 kmh and a truck is leaving the freeway driving 89 kmh
a loop of diameter d 10 cm carrying a current i 02 a is placed inside a magnetic field 03 t the normal to the loop