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a small ferryboat is 400 m wide and 600 m long when a loadedtruck pulls onto it the boat sinks an additional 490 cm
a 26 kg gun is standing on a frictionless surface the gun fires a 552 g bullet with a nmuzzle velocity of 320 ms the
a stone is dropped from the top of a cliff the splash it makeswhen striking the water below is heard 76 s laterpart a
the amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 240 js the
two long straight wires are separated by a distance of 313 cm one wire carries a current of 295 a the other carries a
a 49 kg woman leaps vertically from a crouching position in whichher center of mass is 36 cm above the ground as her
in a steam power plant 1 mw is added at 700degc in the boiler 058 mw is taken out at 40degc in the condenser and the
liquid sodium leaves a nuclear reactor at 800degc and is used as the energy source in a steam power plant the condenser
a 0165-rm kg baseball pitchedhorizontally at 400 rm ms strikes a bat and ispopped straight up to a height of 300 rm ma
if the maximum kinetic energy given to the electrons in acompton scattering experiment is 10kev what is the wavelength
a gymnast of mass 52 kg is jumping on a trampoline she jumps sothat her feet reach a maximum height of 25 m above the
two pieces of the same wire have the same length from one piece asquare coil containing a single loop is made from the
the cue ball in a biliard game travelling at the speed of v1mscollides elastically to another ball of the same kind
two sinusoidal waves of the same frequency are to be sent in thesame direction along a taut string one wave has an
the drawing shows a rectangular block of glass n 152surrounded by liquid carbon disulfide n 163 a ray oflight is
three moles of an ideal monatomic gas expand isothermally at a temperature of 21degc if the volume of the gas
if 310 moles of a monatomic ideal gas at a temperature of 300 k are expanded isothermally from a volume of 205 l to a
three moles of a monoatomic ideal gas are placed in a portablecontainer with a volume of 00029 m3 the temperature ofthe
a helicopter starting from rest accelerates straight up from theroof of a hospital the lifting force does work in
the drawing shows two boxes resting on frictionless ramps one boxis relatively light and sits on a steep ramp the other
cheetahs running at top speed have been reported at an astounding 110 kmh about 69 mih by observers driving alongside
the flywheel of a steam engine runs with a constant angular speed of 150 revmin when steam is shut off the friction of
the pickup coil in an electric guitar contains 10000 turnsand has a diameter of 21 mm when thepickup coil is very close
three object of equal mass are located at three corners of asquare of edge length l find the gravitational field at the
a lamp r 152 anelectric heater r 23 and a fanr 48 areconnected in parallel across a 116 v linea what total