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gamma-ray bursters are objects in the universe that emit pulses of gamma rays with high energies the frequency of the
a crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates an unbanked curve in
a 891-kn car is travelling at 731 mph when the driver decides to exit the freeway by going up a ramp after coasting 411
a 220-mol sample of helium gas initially at 300 k and 0400 atm is compressed isothermally to 100 atm note that the
a fuel tank explodes ripping the container into two pieces of masses 30 kg and 11 kg and sending them 84 m and 133 m
lightning strikes a point on earth delivering 200 c of charge from cloud to earth across a potential difference of 100
a car travels east at 100 kmh for 08 h it then travels 300deg east of north at 127 kmh for 15 ha what is the average
a ball on a porch rolls 44 cm to the porchs edge drops 94 cm continues rolling on the grass and eventually stops 237 cm
christian is making a tyrolean traverse as shown in the figure that is he traverses a chasm by stringing a rope between
multiple concept example 4 and interactive learningware 62 review the concepts that are important in this problem a
a helicopter 820m above the ground and descending at 440ms drops a package from rest relative to the helicopter we have
a wire of unknown material has a cross sectional area 5 mm2 and length 12cm the wire carries current density j 3ucsm2
a physics book of mass m is pushed against a wall by a force p that makes and angle theta with the horizontal the
a 776 kg crate slides on a horizontal surface the coefficient of kinetic friction between the surface and the crate is
the electric potential at a position located a distance of 210 mm from a positive point charge of 690times10-9c and 169
a stone with a mass of 080 kg is attached to one end of a string 090 m long the stone is whirled in a horizontal circle
a ball on the end of a string is whirled around in a horizontal circle of radius 0326 m the plane of the circle is 11 m
a student wants to lose some weight he knows that rigorous aerobic activity uses about 700 kcalh 2900 kjh and that it
the temperature of a gold bar rises by 100degc when it absorbs 0677 kj of energy by heat the mass of the bar is 525 g
a 55 kg woman cheats on her diet and eats a 602 calorie 602 kcal jelly donut for breakfasta how many joules of energy
at 280 m below the surface of the sea density 1 025 kgm3 where the temperature is 500degc a diver exhales an air
the pressure gauge on a tank registers the gauge pressure which is the difference between the interior pressure and
king arthurs knights fire a cannon from the top of the castle wall the cannonball is fired at a speed of 50 ms and at
a frictionless plane is 100 m long and inclined at 340deg a sled starts at the bottom with an initial speed of 590 ms
a 300-kg block starts from rest at the top of a 290deg incline and slides 200 m down the incline in 165 sa find the