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alexandr402 [8]
4 years ago
11

What’s the difference between weight and support force? *oof*

Physics
1 answer:
grandymaker [24]4 years ago
4 0
Force is a measure of the interaction between bodies, mass is a measure of the amount of material in an object, weight is the gravitational force acting on a body (although for trading purposes it is taken to mean the same as mass) and load usually means the force exerted on a surface or body
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A weather balloon is inflated to a volume of 26.8 LL at a pressure of 744 mmHgmmHg and a temperature of 31.2 ∘C∘C. The balloon r
elena-s [515]

Answer:

43.96 L

Explanation:

We are given that

V_1=26.8 L

P_1=744mm Hg

T_1=31.2^{\circ} C=31.2+273=304.2K

P_2=385mmHg

T_2=-14.8^{\circ}=273-14.8=258.2K

We know that

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

V_2=\frac{P_1V_1T_2}{P_2T_1}

Substitute the values

V_2=\frac{744\times 26.8\times 258.2}{385\times 304.2}

V_2=43.96 L

Hence, the volume of balloon at -14.8 degree Celsius=43.96 L

5 0
3 years ago
Approximately how long is a light-year?
Roman55 [17]
C. is the correct response.
8 0
3 years ago
Read 2 more answers
Conservation of Momentum Practice
Yakvenalex [24]

Answer:

Before: 0 m/s  

After: -4 m/s

Explanation:

Before: Since you and your beau started at rest, your beau initial velocity is 0 m/s.

After: Since we have to conserve momentum,

momentum before push = momentum after push.

The momentum before push = 0 (since you and your beau are at rest)

momentum after push = m₁v₁ + m₂v₂ were m₁ = your mass = 60 kg, v₁ = your velocity after push = 3 m/s, m₂ = beau's mass = 45 kg and v₂ = beau's velocity.

So, m₁v₁ + m₂v₂ = 0

m₁v₁ = -m₂v₂

v₂ = -m₁v₁/m₂ = -60 kg × 3 m/s ÷ 45 kg = -4 m/s

So beau moves with a velocity of 4 m/s in the opposite direction

8 0
3 years ago
The magnitude of a force acting on an object is equal to the amount of change in momentum divide by ?
Evgesh-ka [11]

Answer:

time taken.

Explanation:

F = ma

F = m × (v - u) / t

F = mv - mu / t

mv - mu = change in momentum

6 0
2 years ago
What is the wavelength of a sound wave with a frequency of 50hz (speed of sound is 342 m/s?
marysya [2.9K]

6.84m

Explanation:

According to this formula

<span>speed of wave=wavelength×frequency</span>

you have

<span>wavelength=<span>speedfrequency</span>=<span><span>342 m<span>s<span>−1</span></span></span><span>50<span>s<span>−1</span></span></span></span>=<span>6.84 m</span></span>

7 0
3 years ago
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