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grin007 [14]
2 years ago
8

What are some of the difficulties with measuring the volume of a gas? Select all that apply.

Physics
1 answer:
forsale [732]2 years ago
6 0

Answer:

it is ---D because you can't measure gas and it's mass

HOPE THIS HELPS

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A 50-kg person stands 1.5 m away from one end of a uniform 6.0-m-long scaffold of mass 70.0 kg.
babymother [125]

Answer

given,

mass of the person, m = 50 Kg

length of scaffold = 6 m

mass of scaffold, M= 70 Kg

distance of person standing from one end = 1.5 m

Tension in the vertical rope = ?

now equating all the vertical forces acting in the system.

T₁ + T₂ = m g + M g

T₁ + T₂ = 50 x 9.8  + 70 x 9.8

T₁ + T₂ = 1176...........(1)

system is equilibrium so, the moment along the system will also be zero.

taking moment about rope with tension T₂.

now,

T₁ x 6 - mg x (6-1.5) - M g x 3 = 0

'3 m' is used because the weight of the scaffold pass through center of gravity.

6 T₁ = 50 x 9.8 x 4.5 + 70 x 9.8 x 3

6 T₁ = 4263

    T₁ = 710.5 N

from equation (1)

T₂ = 1176 - 710.5

 T₂ = 465.5 N

hence, T₁ = 710.5 N and T₂ = 465.5 N

4 0
3 years ago
What is the ultimate energy source for most wind?
Vinvika [58]

The ultimate energy source for wind comes from Earth's uneven heating on Earth's surface which can be caused mainly by the sun.

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Name one process that requires a force in the human body.
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Non-contact force, which Is a force that acts like an object without coming in physically contact with you
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2 years ago
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A 68 kg runner exerts a force of 59 N. what is the acceleration of the runner
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Question 14:A light bulb is connected to a 110-V source. What is the resistance of this bulb if it is a 100-W bulb
miss Akunina [59]

By the use of Ohm's law, the resistance of the bulb is 121 ohms

<h3>What is electrical power?</h3>

Let us recall that power is the rate of doing work. Now we know that the voltage of the power source is 110-V and the power is 100-W.

Since;

P= IV

I = P/V

I = 100/110

I = 0.91 A

Again;

V= IR

R = V/I

R = 110/0.91

R = 121 ohms

Learn more about resistance: brainly.com/question/11431009

6 0
2 years ago
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