2 years ago

In which scenario is work being done on an object?

Physics

1 answer:

Inessa [10]2 years ago

3 0

Answer:c

Explanation:

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How much time does it take a dropped object to fall 180 m on Earth?

rusak2 [61]

Answer:

Explanation:

Assume it is dropped from rest and the gravitational acceleration is 10

By the equation of motion under constant acceleration:

$s=ut+\frac{1}{2} at^2$

180 = (0)t+10(t^2)/2

t = 6 or -6 (rejected)

t = 6 s

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2 years ago

What is the answer to this?

jeka57 [31]

Answer:

I think it is the forth one

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2 years ago

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Joy is a patient at a hospice center. She has sleep medication that is prescribed to be taken as needed. Joy does not feel sleep

Thepotemich [5.8K]

The right to make treatment choices

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2 years ago

1. A densidade do nitrogênio nas condições normais de temperatura e pressão é igual a 1,24507 kg/m³. Qual a massa de 200 cm³ de

Levart [38]

Answer:

5.49×10⁻⁴ lbm

Explanation:

Convert volume to m³.

V = (200 cm³) (1 m / 100 cm)³ = 0.0002 m³

Find mass in kg.

m = ρV

m = (1.24507 kg/m³) (0.0002 m³)

m = 0.000249 kg

Convert mass to lbm.

m = (0.000249 kg) (2.205 lbm/kg)

m = 0.000549 lbm

m = 5.49×10⁻⁴ lbm

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3 years ago

A person having a mass of 85 kg sits on the edge of a horizontal rotating platform, 2.2 m from the center of the platform, and h

gulaghasi [49]

The angular momentum of the person is given by:
$L=mvr$
where $m=85 Kg$ is the mass of the person, $v=6.6 m/s$ is the tangential velocity, and $r=2.2 m$ is the distance of the person from the center of rotation. Using these data, we find
$L=(85 Kg)(6.6 m/s)(2.2 m)=1234.2 Kg \cdot m^2/s$

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2 years ago