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3 years ago

13

You watch a house being built in your neighborhood. After a few months, it’s ready to be sold. From start to finish this is an e

xample of _____ entropy.
A) increasing
B) decreasing
C) the conversation of

1 answer:

jenyasd209 [6]3 years ago

3 0

The answer is A of cours

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Find the mass of an object if a 40 N of force causes the object to accelerate at 5.5 m/s/s

Murrr4er [49]

Answer:

<h3>The answer is 8 kg</h3>

Explanation:

The mass of the object can be found by using the formula

$m = \frac{f}{a} \\$

f is the force

a is the acceleration

From the question we have

$m = \frac{40}{5} \\$

We have the final answer as

<h3>8 kg</h3>

Hope this helps you

7 0

3 years ago

A note of frequency 200Hz has a velocity of 400m/s. what is the wavelength of the note

Xelga [282]

Answer:

$\huge\boxed{\sf \lambda = 2 m}$

Explanation:

<h3><u>Given data:</u></h3>

Frequency = f = 200 Hz

Velocity = v = 400 m/s

<h3><u>Required:</u></h3>

Wavelength = λ = ?

<h3><u>Formula:</u></h3>

v = fλ

<h3><u>Solution:</u></h3>

Put the givens in the formula

400 = (200)λ

Divide 200 to both sides

400/200 = λ

2 m = λ

λ = 2 m

$\rule[225]{225}{2}$

8 0

2 years ago

A 0.5-kg ball moving at 5 m/s strikes a wall and rebounds in the opposite direction with a speed of 2 m/s. If the impulse occurs

mart [117]

<em>Given that:</em>

mass of the ball (m) = 0.5 Kg ,

ball strikes the wall (v₁) = 5 m/s ,

rebounds in opposite direction (v₂) = 2 m/s,

time duration (t) = 0.01 s,

<em> Determine the force (F) = ?</em>

We know that from Newton's II law,

<em>F = m. a</em> Newtons

(velocity acting in opposite direction, so <em>a = ( (v₁ + v₂)/t</em>

= m × (v₁ + v₂)/t

= 0.5 × (5 + 2)/0.01

= 350 N

<em>The force acting up on the ball is 350 N</em>

6 0

3 years ago

Which statement provides the best description of a computational model?

Varvara68 [4.7K]

Answer:

The answer is "Option C".

Explanation:

Computation modeling is used as the software for math, physics, or software engineering in the simulation and study of complicated processes. The software framework incorporates many parameters, that characterize the model under study. It is a computer program, in which the mathematical formula is generated by computers and research complex systems.

4 0

3 years ago

In a recent year, wind machines in a country generated 183.1 billion kWh of electricity, enough to serve over 17 million househo

Neko [114]

Answer:

The right answer is "4.4%".

Explanation:

Given:

Generated electricity,

= 183.1 billion kWh

Total electricity production,

= 4098 billion kWh

Now,

The wind energy percentage will be:

= $\frac{183.1}{4098}\times 100$

= $0.0446\times 100$

= $4.4$ %

5 0

3 years ago