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3 years ago

Which is a homogeneous mixture? A air B pizza C jar of mixed nuts D salad dressing

Physics

1 answer:

rusak2 [61]3 years ago

5 0

Answer:

A) Air

Explanation:

A homogenous mixture is one that has uniform composition throughout. Air is comprised of several types of molecules (oxygen, carbon, nitrogen...). If you take a chunk of air, you will get the same ratio of those molecules if you take a different chunk of it. They will be made of the exact same things no matter where you take your sample.

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Your car's 30.0 W headlight and 2.50 kW starter are ordinarily connected in parallel in a 12.0 V system. What power (in W) would

Tatiana [17]

Answer:

<h3>The power of headlight in series connection is 29.64 W</h3>

Explanation:

Given :

Power of headlight $P_{1} = 30$ W

Power of starter $P_{2} = 2500$ W

Voltage of headlight and starter $V = 12$ V

From equation of power,

$P = \frac{V^{2} }{R}$

$R = \frac{V^{2} }{P}$

For finding the resistance of headlight and starter,

⇒ For headlight,

$R_{1} = \frac{144}{30} = 4.8$ Ω

⇒ For starter,

$R_{2} = \frac{144}{2500} = 0.057$ Ω

Since equivalent resistance,

$R_{eq} = R_{1} + R_{2} + ........$

$R_{eq} = 4.8 +0.057 = 4.857$ Ω

So power in series is given by,

$P_{s } = \frac{V^{2} }{R_{eq} } = \frac{144}{4.857}$

$P_{s } = 29.64$ W

8 0

3 years ago

In an inelastic collision involving an isolated system, the final total momentum is

Aleksandr-060686 [28]

Answer: B) exactly the same as the initial momentum.

Explanation:

An inelastic collision occurs when the elements that collide remain together after the collision, and althogh the kinetic energy is not conserved because is transformed into other kinds of energy (thermal energy, for example), the linear momentum does.

This means the initial momentum before the collision will be equal to the final momentum after the collision:

$p_{o}=p_{f}$

8 0

3 years ago

Read 2 more answers

A sinusoidal wave on a string is described by the wave function

JulsSmile [24]

The frequency of the wave is approximately 25/π Hertz

<h3>Wave function</h3>

The standard wave function is expressed according to the equation

y = Asin(2πft+2πx/λ)

where

λ is the wave length

Given the equation below

y=0.15 sin (0.80x - 50t)

Since 50 = 2πf

For the frequency

2πf = 50

f = 50/2π

f = 25/π Hertz

Hence the frequency of the wave is approximately 25/π Hertz

Learn more on speed of the wave here: brainly.com/question/25847009

#SPJ4

6 0

2 years ago

Which workout schedule would be BEST suited for a weight-lifting workout that builds both strength and endurance

VLD [36.1K]

My workout schedule is day on - day off

This helps the body rest after the work out and let it gain/build muscle mass

Good luck

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4 years ago

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You are holding a rock tied to a string, which is an example of a pendulum. Identify and explain the proper term for each part o

marshall27 [118]

A pocket watch would be an example

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3 years ago