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a cube of wood have and edge dimension of 200cm and a density of 650 kgm3 floats on water what mass of lead should be
a rigid body is assembled from 3 mass-less rods and three identical point masses the masses are placed separately at ai
a projectile is fired straight upward from earths surface with a speed that is 0816 times the escape speed if re is the
insects do not have lungs as we do nor do they breathe through their mouths instead they have a system of tiny tubes
an electron is released from rest in a uniform electric field ofmagnitude 235 x 104 nc calculate the acceleration ofthe
near the surface of the earth an ideal spring with spring constant k 50 nm is on a frictionless horizontal surface at
a 050-kg mass is attached to a spring of spring constant 20 nm along a horizontal frictionless surface the object
a certain atom of has 73 protons assume that the nucleus is a sphere with radius 654 fm and with the charge of the
a 030-m-radiusautomobile tire accelerates from rest at a constant 20rads2 overa 50-s interval what is the tangential
a child stands at the rim of a rotating merry-go-round of radius 28 m the child has a mass of 510kg and the carousel
two masses m1 500 kg and m2 300 kg are connected by a string as shown mass m1 sits on a rough surface with unknown
an empty capacitor is connected to a 119-v battery and charged up the capacitor is then disconnected from the battery
a man is trying to lift 600 kg off the floor by bending at thewaist assume that the manrsquos upper body weighs 455
a thin bi-convex lens is to focus the image of an object onto a screen so that the image is life sized the lens has
a circular conducting loop with a radius of 10m and a small gap filled with a 100ohm resistor is oriented in the
a camera is equipped with a lens with a focal length of 30cm when an object 2 m 200cm away is being photographed how
a capacitor is charged by a 10 v ideal battery through a 100 ohm resistor its voltage increases from 0 to 5v in 4
a quantity of a monatomic ideal gas undergoes a process in which its pressure is increased by a factor of n 4 and its
water at the top of niagara falls has a temperature of 200degc if it falls a distance of 400 m and all of its potential
a 15-uf capacitor is connected to a 50-v battery and becomes fullycharged the battery is removed and a slab of
water moves through a constricted pipe in steady ideal flow at the lower point the pressure is 170 105 pa and the pipe
blaise pascal duplicated torricellis barometer using a red bordeaux wine of density 950 kgm3 as the working liquid what
the spring of the pressure gauge shown in the figure below has a force constant of 1471 nm and the piston has a radius
a parallel-plate capacitor consists of plates of area 15 x10-4 m2 and separated by 10 mmthe capacitor is connected to a
if the elastic limit of steel is 50 multiplied by 108 pa determine the minimum diameter a steel wire can have if it is