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Mazyrski [523]
3 years ago
12

What property is a characteristic of a pure substance that can be observed with out changing the substance into something else

Physics
1 answer:
WARRIOR [948]3 years ago
4 0

physical property is a characteristics of a pure substance that can be observed without changing the substance into someone else.

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A ball that has a mechanical energy of 65 J has 12 J of kinetic energy. The ball has J of potential energy.
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0.0010 kg pellet is fired at a speed of 52.2 m/s at a motionless 3.3 kg piece of balsa wood. When the pellet
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The formula for momentum is p = m*v

The conservation of momentum suggests:

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(0.0010)(52.2) = (0.0010 + 3.3)vf

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3 years ago
From a height of 40.0 m, a 1.00 kg bird dives (from rest) into a small fish tank containing 50.5 kg of water. Part A What is the
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Answer:

0.00185 °C

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From the question,

The potential energy of the bird = heat gained by the water in the fish tank.

mgh = cm'(Δt)................... Equation 1

Where m = mass of the bird, g = acceleration due to gravity, h = height, c = specific heat capacity of water, m' = mass of water, Δt = rise in temperature of water.

make Δt the subject of the equation

Δt = mgh/cm'............... Equation 2

Given: m = 1 kg, h = 40 m, m' = 50.5 kg

constant: g = 9.8 m/s², c = 4200 J/kg.K

Substitute into equation 2

Δt = 1(40)(9.8)/(50.5×4200)

Δt = 392/212100

Δt = 0.00185 °C

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What color will a yellow banana appear when illuminated by yellow light
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A yellow banana reflects only yellow light,

Explanation:

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