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when 378 g of nonvolatile solute is dissolved in 3000 g ofwater the freezing point depression is 0646 o c calculate the
your task in physics lab is to make a microscope from two lensesone lens has a focal length of 12 rm cm the other a
an object initially at rest breaks into two pieces as the result of an explosion one piece has twice the kinetic energy
the interior of a house is maintained at 20 degrees celsiuswhile the outdoor temperature is -10 degrees celsius
the mass of the moon os 731022 kg and its radius is 174106m what is the acceleration due to gravity on the surface of
a toaster uses a heating wire when the toaster is turned on at 20 degree c the initial current is 154 a a few seconds
when a light bulb is connected across the terminals of abattery the battery delivers 24w of power to the bulb a
a 055 kg book slides on ahorizontal table the kinetic friction force on the book hasmagnitude 18 na how much work is
two wires are identical except that one is aluminum and one is copper the aluminum wire has a resistance of 0874 ohm
there are four charges each with a magnitude of 20muc two are positive and two are negative the charges are fixedto the
a poorly tuned yugo can accelerate from rest to a speedof 28 ms in 20 sa what is the average acceleration of the carb
an electrically neutral model airplane is flying in a horizontalcircle on a 30m guideline which is nearly parallel to
a hockey puck is hit on a frozen lake and starts moving with aconstant speed of 12 ms five seconds later its speed
a 90 ohm resistor and a 60 ohm resistor are connected in series with a power supplya the voltage drop across the 60 ohm
a 675 kg circus performer slides410 m down a pole to the circusfloor starting from resta what is the kinetic energy of
two ants race across a table 66 cm long one travels at442 cms and the other at 3cms when the first one crosses
a glacier moves with a speed of 54 nms how many years would it take for the glacier to move 081 km answer in unit of
a 37 kg bucket of water is raised from a well by a rope ifthe upward acceleration of the bucket is 41 meters per
benjamin applies a force f over a distance x to a ropeconnected to a set of pulleys this raises a block of weight w
a water skier moving at a speed of 930ms is being pulld bya tow rope that makes an angle of 370o with respect to
one kilowatt-hour kwh is the amount of work or energygenerated when one kilowatt of power is supplied for a timeof one
an 790 kg roller-coaster car is launched from a giantspring of constant 35 knm into a frictionless loop-the-looptrack
a beam contains 30 x 106 doubly charged positive ionsper cubic centimeter all of which are moving north with a speed
the peak value of the ac current in a circuit is 60 a and peak value of the ac voltage applied to the circuit is 47 v
imagine a stationary sourceof sound waves by stationary we mean that it is not moving with respect to the medium how