A rock is suspended from a scale reads 200 n a beaker of
A rock is suspended from a scale reads 20.0 N. A beaker of water ( having a density of 1000 kg/m^3) is raised up so the rock is totally submerged in the water. The scale now reads 12.5 N. What is the density of the rock?
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one kilogram of dry air at stp conditions is exposed to 100 r of x-rays one roentgen is defined by equation 321 in
a ladder leans against a wall making a 550deg angle to the floor the ladder is 450 m long and weighs 415 n the wall is
what did newton discover about gravity 1 all objects near the earth free fall with the same acceleration 2 any force on
a piano string with mass density 7700 kgm3 and diameter 03 mm is stretched over a pulley such that its vibrating length
a rock is suspended from a scale reads 200 n a beaker of water having a density of 1000 kgm3 is raised up so the rock
jill 60kg is swinging on a rope swing that is 4m long at what frequency does jill need to pump her legs to get the
find the magnitude of the gravitational force a 639 kg person would experience while standing on the surface of earth
a satellite moves in a circular orbit around the earth at a speed of 61 kms determine the satellitersquos altitude
two vehicles approach a right angle intersection and then collide after the collision they become entangled if their
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