2 years ago

During which segments are two states of matter present? the answer is D

Physics

1 answer:

Tomtit [17]2 years ago

7 0

Answer:

2,4

Explanation:

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What is the process by which people form intuitive ideas about other people, based on fleeting information they obtained either

Anna71 [15]

Answer:

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3 years ago

Starting from rest, a wheel with constant angular acceleration turns through an angle of 25 rad in a time t. Through what angle

WITCHER [35]

Answer:

After time 2t, the wheel will turn through an angle of 100 rad.

Explanation:

Given;

initial velocity of the wheel, $\omega_i = 0$

time of motion, t = t

angular distance, θ = 25 rad

The constant angular acceleration is calculated as;

$\theta = ut + \frac{1}{2}at^2\\\\\theta = 0 + \frac{1}{2}at^2\\\\2\theta = at^2\\\\a = \frac{2\theta }{t^2} \\\\a = \frac{2\ \times \ 25 }{t^2}\\\\a = \frac{50}{t^2} \\\\when \ t = 2t\\\\\theta = \frac{1}{2}at^2\\\\\theta = \frac{1}{2}(\frac{50}{t^2})(2t)^2\\\\\theta =\frac{1}{2}(\frac{50}{t^2})(4t^2)\\\\\theta = 100 \ rad$

Therefore, after time 2t, the wheel will turn through an angle of 100 rad.

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2 years ago

When a force of 15 newtons is applied to a stationary chair, it starts moving. What can you say about the frictional force betwe

Darina [25.2K]

Answer:

D) the force of static friction between the chair and the floor is less than 15 newtons

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2 years ago

What causes the disease bronchitis?

Ilia_Sergeevich [38]

Answer:

Acute bronchitis can result from: a virus, for example, a cold or flu virus. a bacterial infection. exposure to substances that irritate the lungs, such as tobacco smoke, dust, fumes, vapors, and air pollution.

Explanation:

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3 years ago

How far can a person run in 15 seconds if she runs at an average speed of 160 cm/s? State your answer in meters.

uysha [10]

Answer: distance = 24 meters

Explanation:

speed = distance / time

distance = speed x time

speed = 160 cm/s = 1.6 m /s [ 100 cm = 1 m, 160 cm = 1.6 m ]

time = 15 s

distance = 1.6 m/s x 15 s = 24 m

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3 years ago