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a hot-air balloon is accelerating upward under the influence of two forces its weight and the buoyant force for
a rotating wheel requires 5 second to complete 50 revolutions its angular speed at the end of the 5 second interval is
a man stands in a stationary canoe and throws a 473 kilogram stone with a velocity of 710 ms at an angle of 363 degree
a soccer ball which has a circumference of 700 centimeter rolls 140 yards in 335 second obtain the average angular
an electric motor rotating a workshop grinding wheel at a rate of 100revmin is switched off suppose the wheel has a
the tires on a car has a radius of 31 centimeter determine what is the angular speed of these tires when the car is
a jet travels at a speed of 542 ms through air at 0 degree celsius determine what is the mach
you are driving down a road at a constant speed of 178 ms and another car drives toward you the other car is in the
chuck norriss fist has a mass of 070 kilogram starting from rest this fist attains a velocity of 80 ms2 in 15 second
a parallel-plate capacitor has circular plates with radius 45 centimeter and spacing 10 millimeter a uniform electric
calculate the peak electric field inside a 645 watt microwave oven under the simplifying approximation that the
early one october you go to a pumpkin patch to select your halloween pumpkin you lift the 27 kilogram pumpkin to a
a boy is running at a speed of 64 ms and grabs a rope hanging vertically from a tall tree in order to swing out over a
a at a certain instant a particle-like object is acted on by a force f 26 ni -30 nj 53 nk while the objects velocity
in 1960 a tampa florida mother reportedly raised one end of a car that had fallen onto her son when a jack failed if
the roof of a large arena with a weight of 280 kn is lifted by 42 centimeter so that it can be centered determine how
the force on an atom is directed along an x axis and given by f 077x29 - 24 where x is in meters and f is in newtons
when a 927 kilogram block is located on top of a vertical spring the spring compresses 395 centimeter evaluate what the
a car goes from 40 ms to 80 ms in a distance of 200 meter determine what is its average
a vehicle starts from rest and accelerates to 40 ms2 for 5 seconds then maintain that velocity for 10 second and then
a car with good tires on a dry road can decelerate at about 50 ms2 when braking assume the car is initially traveling
due to thermal motion the electrons at room temperature are randomly traveling to and fro at 112 times 105 ms even
the density of copper is 891 gcm3 and its atomic mass is 635 assuming each copper atom contributes one mobile electron
a wire made from copper with a cross-section of diameter 0990 millimeter carries a current of 11 amp determine what is
a dentists drill starts from rest after 310 second of constant angular acceleration it turns at a rate of 26 x 104