Physics, 05.07.2019 17:20 jilliandantuma84
Be sure to answer all parts. calculate the mass of each of the following: (a) a sphere of gold with a radius of 12.5 cm. (the volume of a sphere with a radius r is v = (4/3)πr3; the density of gold is 19.3 g/cm3.) × 10 genter your answer in scientific notation. (b) a cube of platinum of edge length 0.049 mm (density = 21.4 g/cm3). × 10 genter your answer in scientific notation. (c) 67.1 ml of ethanol (density = 0.798 g/ml). g
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Physics, 21.06.2019 17:00
What is the function of the commutator in a dc motor? a. to spin the magnet b. to change direct current into alternating current c. to change alternating current into direct current d. to spin the wire coil
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Physics, 22.06.2019 03:30
Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec
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The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e
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Be sure to answer all parts. calculate the mass of each of the following: (a) a sphere of gold with...
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