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2 years ago

Give one advantage and one disadvantage of physical models

Physics

1 answer:

MAXImum [283]2 years ago

3 0

<u>Answer:</u>

<em>Advantage of physical model : </em>

Easily understandable.

Finding circumstances and end results utilizing model discernibly.

Improving framework understanding through a visual examination.

Finding mistakes prior and lessening framework surrenders.

<em>Disadvantage of physical model : </em>

Time consuming to make.

It takes more time to make any physical model.

We should be revamped whenever decimated.

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To determine the height of a tall building such as Sears Tower in Chicago, Illinois a ball was dropped from the top of the build

Darya [45]

Answer:

The height of Sears Tower is 1448.5 feet.

Explanation:

<h3>We apply the free fall formula to the ball: </h3><h3> $y=v_{o} *t+\frac{1}{2} *g*t^{2}$ </h3><h3>y: The vertical distance the ball moves at time t </h3><h3> $v_{o}$ i: Initial speed </h3><h3>g=Gravity acceleration= $9.8*(\frac{\frac{1ft}{0.305m} }{s^{2} } )$ </h3>

Known information

We know that the vertical distance (y) that the ball moves in 9,5s is equal to height of Sears Tower (h).

Too we know that the ball is released from rest, then, $v_{0}$ =0

Height of Sears Tower calculation:

We replace in the equation 1 the data following;

$y=h$

$v_{o} =0$

$g=32,1\frac{ft}{s^{2} }$

$t= 9,5s$

$h=0*9.5+\frac{1}{2} *32.1*9.5^{2}$

$h=1448.5 ft$

Answer: The height of Sears Tower is 1448.5 ft

6 0

3 years ago

Per person, the energy consumption in the United States is about 3.3 × 10^8 Btu/yr. This is equivalent to a power of:________. A

zhuklara [117]

Answer:

$3.3\times 10^8\ btu/yr=11\ kW$

Explanation:

Btu of British thermal unit is a unit of heat. The relation between btu/year and watts is given by :

$1\ btu/yr=3.343\times 10^{-5}\ W\\\\3.3\times 10^8\ btu/yr=3.343\times 10^{-5}\times 3.3\times 10^8\ W\\\\3.3\times 10^8\ btu/yr=11031.9\ W\\\\3.3\times 10^8\ btu/yr=11\ kW$

So, $3.3\times 10^8\ btu/yr$ is equal to 11 kW. Hence, the correct option is (d).

4 0

2 years ago

Which elements are halogens check all that apply

Usimov [2.4K]

the halogens is group 17,,

5 0

2 years ago

Read 2 more answers

Which type(s) of subatomic particles can be located within the nucleus of an atom?

blagie [28]

According to the research, the correct option is c. Protons and neutrons are subatomic particles can be located within the nucleus of an atom.

It is the minimum unit of a substance, which makes up all common matter and is made up of a nucleus with protons and neutrons and several orbital electrons, the number of which varies according to the chemical element.

In this sense, protons are subatomic particles that have a positive energetic charge, while neutrons have no charge.

Therefore, we can conclude that according to the research, the correct option is c. Protons and neutrons are subatomic particles can be located within the nucleus of an atom.

Learn more about an atom here: brainly.com/question/11467887

#SPJ1

6 0

1 year ago

Match the type of radiation to a correct description of it. A. Alpha The radiation particle is negatively charged. B. Beta The r

lawyer [7]

Alpha - <span>The radiation particle is positively charged.
</span>Beta - <span>The radiation particle is negatively charged.
</span>Gamma - The radiation is a wave, not a particle.

5 0

3 years ago