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a 00346 kilogram bullet is fired horizontally into a 367 kilogram wooden block attached to one end of a mass less
1 compute the number of electrons in a small electrically neutral silver pin that has a mass of 120 g silver has 47
on a cold day 26800 joule of heat leaks out of a house the inside temperature is 21 degc and the outside temperature is
a virtual image of magnification 06667 are produced when an object is located in front of a spherical mirrora compute
light moving from glass to air changes wavelength from 4485 nm to 6537 nma obtain the index of refraction of the glassb
an 115 kilogram block rests on a horizontal table and is attached to one end of a mass less horizontal spring by
a horizontal force of 30 newton pulls a block of mass 37 kilogram across a level floor the coefficient of kinetic
a helium balloon occupies 88l at 20 c and 10-atm pressure the balloon rises to an altitude where the air pressure is
a car of mass m 1410 kilogram is pushed off a cliff of height h 23 meter if the car lands a distance of 8 meter from
consider a charge 10 nc at 1 0 cm and a charge of -20 nc at 1 1 compute the electric field e at the origin remember
a block is dropped onto a spring with k 31 nm the block has a speed of 35 meter per second just before it strikes the
a block of mass m1 315 kg on a frictionless plane inclined at anglenbsp 325deg is connected by a cord over a mass
the maximum speed of a 3 kilogram mass attached to a spring is 067 ms and the maximum force exerted on the mass is 12
an astronaut with a total mass of 685 kg lands on a distant planet the astronaut weighs himself on the surface of the
a swimming pool measures a length of 50 meter width 4 meter and depth 34 metera find the force exerted by the water
a ball is shot from the ground into the air at a height of 94 m the velocity is observed to be v 78i 51j in meters
a 0314 kilograms mass is attached to a spring with a force constant of 138 nm if the mass is displaced 0264 millimeter
if the coefficient of performance for an air conditioner is 560 decide the amount of heat pushed out from the cooler
the position of a mass oscillating on a spring is given by x83cmcos2pi t053s obtain the frequency of this motion when
on the apollo 14 mission to the moon astronaut alan shepard hit a golf ball with a 6 iron the acceleration due to
a river narrows at rapids from a width of 15 meter to a width of only 6 meter the depth of the river before the rapids
a 79 kg runner exerts 340 n of horizontal force as he pushes off the ground the vertical ground reaction force at this
a hot-air balloon has a volume of 2600m3 the balloon fabric the envelope weighs 810 newton the basket with gear and
a cheerleader does a handstand on other cheerleaderrsquos hands if the lower cheerleader weighs 180 lbs and the
two speakers each with a power output of 0510 watt are mounted facing each other and 338 meter apart if the speakers