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boyakko [2]
2 years ago
13

An iceberg of density 920kg/m^3 floats in seawater of density 1025kg/m^3 with volume of 10^6m^3.What is the total mass of the ic

eberg?
Physics
1 answer:
zhenek [66]2 years ago
5 0
Im pretty sure the answer is 1.95x10^9
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Robert is riding the Giant Drop at Great America. If
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Beating a carpet with a carpet beater.
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A toy rocket fires its engines to launch it straight up from rest. After a short time, the engine turns off and the
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at 10 seconds.. b/c that's when the velocity stops increasing..

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2 years ago
A 50.0 kg child stands at the rim of a merry-go-round of radius 1.50 m, rotating with an angular speed of 3.00 rad/s. (a) what i
White raven [17]
Weight of the child m = 50 kg 
Radius of the merry -go-around r = 1.50 m
 Angular speed w = 3.00 rad/s
 (a)Child's centripetal acceleration will be a = w^2 x r = 3^2 x 1.50 => a = 9 x
1.5
 Centripetal Acceleration a = 13.5m/sec^2
 (b)The minimum force between her feet and the floor in circular path
 Circular Path length C = 2 x 3.14 x 1.50 => c = 3 x 3.14 => C = 9.424
 Time taken t = 2 x 3.14 / w => t = 6.28 / 3 => t = 2.09
 Calculating velocity v = distance / time = 9.424 / 2.09 m/s => v = 4.5 m/s
 Calculating force, from equation F x r = mv^2 => F = mv^2 / r => 50 x (4.5)^2

/ 1.5
 F = 50 x 3 x 4.5 => F = 150 x 4.5 => F = 675 N
 (c)Minimum coefficient of static friction u
 F = u x m x g => u = F / m x g => u = 675/ 50 x 9.81 => 1.376 
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 Hence with the force and the friction coefficient she is likely to stay on merry-go-around.
8 0
3 years ago
What type of energy do you observe from a light bulb
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Potential if it is off or kinetic energy when its on
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