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2 years ago

Two particles of a gas collide. Why is this considered an elastic collision? (1 point)

Physics

2 answers:

dezoksy [38]2 years ago

7 0

I don’t know really really I don’t know

RSB [31]2 years ago

5 0

They bounce off each other, conserving energy and momentum.

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A planet outside of our solar system

Zolol [24]

Answer:

exoplanets is any planet beyond our solar system.

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3 years ago

During a very quick stop, a car decelerates at 7.05 m/s2. (a) What is the angular acceleration (in rad/s2) of its 0.270 m radius

gayaneshka [121]

Part a)

Initial deceleration is given as

$a = - 7.05 m/s^2$

radius is given as

$R = 0.270 m$

now angular acceleration is given as

$\alpha = \frac{a}{R}$

$\alpha = \frac{-7.05}{0.270} = -26.11 rad/s^2$

Part b)

initial angular speed = 96 rad/s

angular deceleration = 7.05 rad/s

now number of revolutions before it will stop is given as

$N = \frac{\omega^2 - \omega_0^2}{4\pi\alpha}$

now plug in all data

$N = \frac{0 - 96^2}{4\pi(-26.11)}$

$N = 28 rev$

Part c)

time taken to stop is given as t

now we have

$\omega = \omega_0 + \alpha t$

$0 = 96 - 26.11 t$

$t = 3.676 s$

Part d)

distance moved by the car

distance = number of revolutions (length of one complete revolution)

$d = N(2\pi R)$

$d = 28(2\pi (0.270))$

$d = 47.5 m$

Part e)

initial speed of car is given as

$v = R\omega$

$v = 0.270(96) m/s$

$v = 25.92 m/s$

8 0

3 years ago

HELP PLEASE!!!!!

Morgarella [4.7K]

The reason hair sticks to a comb is because dry hair collects positive electrical charges. In order to prevent hair from sticking to a comb you would have to reduce dryness by adding moisture.

Hope this helps

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3 years ago

Which of the following are good safety measures during a thunderstorm? A. Talk on a phone with a cord. B. Go inside a closed bui

Alex73 [517]

B and C are the correct answers because when you stand in an open space the ground is an conductor therefore adding and electric shock to your day

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3 years ago

Read 2 more answers

A projectile is fried from the ground. It’s initial horizontal velocity is 12m/s. It’s initial vertical velocity is 5m/s. What i

Paul [167]

A projectile is fried from the ground. It’s initial horizontal velocity is 12m/s. It’s initial vertical velocity is 5m/s. What is the total resultant velocity of the fires projectile

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2 years ago