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nikitadnepr [17]
2 years ago
12

A block of wood is tied to the bottom of a large container of water so that the block is completely submerged. The density of th

e block is 800 kg/m3 and its volume is 0.030 m3. What is the tension in the rope holding the block down in the water
Physics
1 answer:
jeka57 [31]2 years ago
6 0

Answer:

58.9 N

Explanation:

The wood is buoyed up by the mass of the water is displaces

  wood volume = .030 m^3 = 30 000 cm^3

   mass of water displaced = 30 000 g = 30  kg

wood mass =   800 kg/m^3  * .030 m^3 = 24 kg

so tension in string    = mg   = (   30 kg - 24 kg) * 9.81 m/s^2 = 58.9 N

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3rd order polynomial

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The magnitude of Earth’s magnetic field is about 0.5 gauss near Earth’s surface. What’s the maximum possible magnetic force on a
vampirchik [111]

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F = 1.5 \times 10^{-16} N

this force is 1.68 \times 10^{13} times more than the gravitational force

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now the speed of electron is given as

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now the maximum force due to magnetic field is given as

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F = (1.6\times 10^{-19})(1.87 \times 10^7)(0.5 \times 10^{-4})

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Now if this force is compared by the gravitational force on the electron then it is

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4 0
3 years ago
g A loop circuit has a resistance of R1 and a current of 2 A. The current is reduced to 1.4 A when an additional 2.2 Ω resistor
Mrrafil [7]

Answer:

R1 = 5.13 Ω

Explanation:

From Ohm's law,

V = IR............... Equation 1

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I = 2 A, R = R1

Substitute into equation 1

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When a resistance of 2.2Ω is added in series with R1,

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R1 = 3.08/0.6

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6 0
3 years ago
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