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ser-zykov [4K]
3 years ago
9

The density of mercury is 13600 kg/m3 at 0°C. what is its density at temperature 100°C​

Physics
1 answer:
stealth61 [152]3 years ago
8 0

Answer:

  1. 13700 kg÷m2

Explanation:

100c+13600kg÷m2

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It’s C

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You are correct. Mountains are part of the lithosphere.
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When you jump straight up as high as you can, what is the order of magnitude of the maximum recoil speed that you give to the Ea
Klio2033 [76]

Answer:

5.66 × 10⁻²³ m/s

Explanation:

If i assume i can jump as high as h = 2 m, my initial velocity is gotten from v² = u² + 2gh. Since my final velocity v = 0, u = √2gh = √(2 × 9.8 × 2) = √39.2 m/s = 6.26 m/s.

Since initial momentum = final momentum,

mv₁ + MV₁ = mv₂ + MV₂ where m, M, v₁, V₁, v₂ and V₂ are my mass, mass of earth, my initial velocity, earth's initial velocity, my final velocity and earth's final velocity respectively.

My mass m = 54 kg, M = 5.972 × 10²⁴ kg, v₁ = 6.26 m/s, V₁ = 0, v₂ = 0 and V₂ = ?

So mv₁ + M × 0 = m × 0 + MV₂

mv₁ = MV₂

V₂ = mv₁/M =  54kg × 6.26 m/s/5.972 × 10²⁴ kg = 338.093/5.972 × 10²⁴ = 56.61 × 10⁻²⁴ m/s = 5.661 × 10⁻²³ m/s ≅ 5.66 × 10⁻²³ m/s

5 0
3 years ago
A steel piano string of mass per unit lenght 4×10-⁴kgm-¹ was struck, if the speed of the sound on the string is 300ms-¹. Calcula
attashe74 [19]

Answer:

36 N

Explanation:

Velocity of a standing wave in a stretched string is:

v = √(T/ρ),

where T is the tension and ρ is the mass per unit length.

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T = 36 N

3 0
3 years ago
By applying a force of one Newton, one can hold a body of mass _​
SVEN [57.7K]

Answer:

By applying a force of one Newton, one can hold a body of mass of 102 gram.

Explanation:

  • Force is the pull or push of an object. It can be mathematically measured as, F= m* g.

                       where, F= force in newton

                                  m= mass in kg

                                  g= acceleration due to gravity (meter/second^{2} )

  • For 1 newton force,

                                   F= m* 9.8

                            or,   m= \frac{1}{9.8}= 0.102 kg

                            or,   m= 102 gram.

  • Hence, 102 gram mass can be hold by one Newton force.

3 0
4 years ago
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