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3 years ago

This is a measure of quantity of matter

Physics

1 answer:

Marrrta [24]3 years ago

3 0

Answer:

Mass

Explanation:

Mass is the measure of amount of matter contained within any substance and hence mass determines the weight. Unit of mass is kilogram as per ISI system of units.

Mass is measured through a balance. The more is the mass of an object, the more the balance tilts towards the object side.

Weight is equal to product of mass and the gravitational constant i.e 9.8m/s^2

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Doppler Radar gathers information about precipitation by sending out pulses of ___Radio wave___ energy

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3 years ago

What is the strategy you use to solve word problems in physics?

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2 years ago

Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. The

Galina-37 [17]

Answer:

220 A

Explanation:

The magnetic force on the floating rod due to the rod held close to the ground is F = BI₁L where B = magnetic field due to rod held close the ground = μ₀I₂/2πd where μ₀ = permeability of free space = 4π × 10⁻⁷ H/m, I₂ = current in rod close to ground and d = distance between both rods = 11 mm = 0.011 m. Also, I₁ = current in floating rod and L = length of rod = 1.1 m.

So, F = BI₁L

F = (μ₀I₂/2πd)I₁L

F = μ₀I₁I₂L/2πd

Given that the current in the rods are the same, I₁ = I₂ = I

So,

F = μ₀I²L/2πd

Now, the magnetic force on the floating rod equals its weight , W = mg where m = mass of rod = 0.10kg and g = acceleration due to gravity = 9.8 m/s²

So, F = W

μ₀I²L/2πd = mg

making I subject of the formula, we have

I² = 2πdmg/μ₀L

I = √(2πdmg/μ₀L)

substituting the values of the variables into the equation, we have

I = √(2π × 0.011 m × 0.1 kg × 9.8 m/s²/[4π × 10⁻⁷ H/m × 1.1 m])

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I = √(0.0049 × 10⁷kgm²/s²H)

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I = 220 A

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3 years ago

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3 years ago

Read 2 more answers

Do you think toxicity is a qualitative or quantitative property? explain

Tomtit [17]

Answer:

Toxicity is a quantitative property

Explanation:

Qualitative property of a object cannot be measured it can just be observed

Quantitative property of a substance can be measured and be assigned a numerical value .
The toxicity level of a substance can be measured and be assigned a numeral value

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3 years ago