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1 year ago

15

There is a filing cabinent that is 52 in. tall and 15 in. wide. The center of gravity of the cabinet is right at the center. To

what angle can the cabinet be tipped before it falls over?

1 answer:

erastova [34]1 year ago

5 0

Answer:

16 degrees

Explanation:

The tipping point of the cabinet is sketched below.

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Give Example of mental flexibility

Inessa [10]

Answer:

If you ring the doorbell and no one opens the door, you'll infer that no one is home rather than continuing to ring the doorbell to an empty house. Being able to understand this and look for another solution is another example of mental flexibility.

Explanation:

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2 years ago

How the choice of building materials and techniques can help them cool down faster, after heating up.

Sauron [17]

Answer:

The choice of building materials and techniques can help them cool down faster, after heating up is explained below in brief details.

Explanation:

Building materials

Buildings that are composed of rock, bricks, or pavement, or inserted into the territory, can seem cooler thanks to the great "thermal mass" of these elements – that is, their capability to assimilate and discharge heat gently, thereby softening temperatures over time, producing daytime cooler and night-time warmer.

3 0

3 years ago

A 30.0 kg box is placed on a 3.00 m tall shelf. What how much work was done on the box?

Kruka [31]

Answer:

W = 882.9[J]

Explanation:

In order to be able to calculate the work, we must first calculate the force necessary to lift the box. Since the necessary force is equivalent to the weight of the box, we can determine the weight of the box by means of the product of mass by gravitational acceleration.

$w = m*g\\$

where:

w = weight [N]

m = mass = 30 [kg]

g = gravity acceleration = 9.81 [m/s²]

$w = 30*9.81\\w = 294.3 [N]$

Now, the work can be calculated multiplying the force (weight) by the distance [m]

$W = w*d\\W = 294.3*3\\W=882.9[J]$

6 0

2 years ago

Coherent light with wavelength 597 nm passes through two very narrow slits, and theinterference pattern is observed on a screen

velikii [3]

Answer:

The required wavelength is 1.19 μm

Explanation:

In the double-slit study, the formula below determines the position of light fringes $y_m$ on-screen.

$y_m = \dfrac{m \lambda D}{d}$

where;

m = fringe order

d = slit separation

λ = wavelength

D = distance between screen to the source

For the first bright fringe, m = 1, and we make (d) the subject, we have:

$d = \dfrac{(1) \lambda D}{y_1}$

$d = \dfrac{ \lambda D}{y_1}$

replacing the value from the given question, we get:

$d = \dfrac{ (597 \ nm )\times (3.00 \ m)}{4.84 \ mm} \\ \\ d = \dfrac{ (597 \ nm \times (\dfrac{1 \ m}{10^9\ nm}) )\times (3.00 \ m)}{4.84 \ mm(\dfrac{1 \ m}{1000 \ mm })} \\ \\ d = 3.7 \times 10^{-4} \ m$

In the double-slit study, the formula which illustrates the position of dark fringes $y_m$ on-screen can be illustrated as:

$y_m = (m+\dfrac{1}{2}) \dfrac{\lambda D}{d}$

The value of m in the dark fringe first order = 0

∴

$y_0 = (0+\dfrac{1}{2}) \dfrac{\lambda D}{d}$

$y_0 = (\dfrac{1}{2}) \dfrac{\lambda D}{d}$

making λ the subject of the formula, we have:

$\lambda = \dfrac{2y_o d}{D} \\ \\ \lambda = \dfrac{2(4.84 \ mm) \times \dfrac{1 \ m}{1000 \ mm} (3.7 \times 10^{-4} \ m) }{3.00 \ m}$

$\lambda = 1.19 \times 10^{-6} \ m ( \dfrac{10^6 \mu m }{1\ m}) \\ \\ \lambda = 1.19 \mu m$

5 0

2 years ago

What are the examples of microscopic systems and macroscopic systems???

nikdorinn [45]

Examples of familiar macroscopic objects include systems such as the air in your room, a glass of water, a coin, and a rubber band—examples of a gas, liquid, solid, and polymer, respectively. Less familiar macroscopic systems include superconductors, cell membranes, the brain, the stock market, and neutron stars.

3 0

3 years ago