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krek1111 [17]
4 years ago
7

What happens to pressure if temperature increases?

Physics
1 answer:
andrezito [222]4 years ago
7 0
When the temperature increases the pressure must also increase.
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A car is moving initially at 30 m/s comes gradually at stop at 900 m . What is acceleration of the car ?
ziro4ka [17]

The acceleration of the car is 0.5 meters per seconds square.

Given the following data:

  • Initial velocity, U = 30 m/s
  • Distance, S = 900 meters

Note: The final velocity (V) of the car would be zero (0) m/s when it comes to a stop.

To find the acceleration of the car, we would use the third equation of motion;

Mathematically, the third equation of motion is given by the formula;

V^2 = U^2 - 2aS\\\\0 = 30^2 - 2a(900)\\\\0 = 900 - 1800a\\\\1800a = 900\\\\a = \frac{900}{1800}

<em>Acceleration, a </em><em>=</em><em> 0.5 </em>m/s^2<em></em>

Therefore, the acceleration of the car is 0.5 meters per seconds square.

Read more: brainly.com/question/8898885

4 0
2 years ago
Alana organized some resources in a table. which best describes alana’s error? geothermal energy is not found underground. petro
Akimi4 [234]
Which energy is best discribed for you and math
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3 years ago
A 22.0-kg child is riding a playground merrygo-round that is rotating at 40.0 rev/min. What centripetal force is exerted if he i
Tems11 [23]

Answer:

F=480.491 N

Explanation:

Given that

mass ,m = 22 kg

Angular speed ω = 40 rev/min

\omega=\dfrac{2\pi \times 40}{60}\ rad/s

ω =4.18 rad/s

The radius  r= 1.25 m

We know that centripetal force is given as

F=m ω² r

Now by putting the values in the above equation we get

F=22\times 4.18^2\times 1.25\ N

F=480.491 N

Therefore the centripetal force on the child will be 480.491 N.

6 0
3 years ago
A 12.0 kg object is attached to a cord that is wrapped around a wheel of radius 10.0 cm. the acceleration of the object down the
olganol [36]

 a) We use the formula:

T = [g sinθ – a] * m

where g is gravity, θ is the angle, a is acceleration, m is mass

T = [9.81 sin37 - 2.00] * 12 = 46.85 N <span>

b) We use the formula for moment of interia:</span>

I = T * r² / a

I = 46.85 * 0.10² / 2.00 = .2343 kg∙m² <span>

c) The formula we can use here is:</span>

w = α * t = (a/r) * t

w = (2/.10) * 2

<span>w = 40 rad/sec</span>

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Describe the parts of a circuit and explain what each part does?
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Battery, a wire and the nergy source.
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