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4 years ago

10

As the bright sun shines upon the water, the water slowly disappears. The same sunlight gives energy to the surrounding plans to

convert water and carbon dioxide into sugar and oxygen gas which change is a physical and which is a chemical

1 answer:

mariarad [96]4 years ago

8 0

first is physical .... sec chem

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A typical adult can deliver about 12.5 N·m of torque when attempting to open a twist-off cap on a bottle. Assume that bottle cap

Nikitich [7]

Uhhhhhhhhh just tryna get a point so I can ask a question so eh I’m using ur question heheheheheh

3 0

3 years ago

A rightward force of 12.0 N is applied to a 2.0-kg object to accelerate it across a horizontal

ad-work [718]

Answer:

below

Explanation:

Net accelerating force becomes 12-8 = 4 N

F = ma

4 = 2 * a

a = 2 m/s^2

8 0

1 year ago

Which of the following is a nonferromagnetic material? (a) aluminum (b) iron (c) cobalt (d) gadolinium

ivolga24 [154]

Answer:

A

Explanation:

Iron and gadlinium are both very easily made into magnetic substances. Cobalt is also capable of being magnetized. Aluminum, put in an alloy, can make a magnetic substance, but

Aluminum by itself is not able to be magnetized.

5 0

3 years ago

One of the main factors driving improvements in the cost and complexity of integrated circuits (ICs) is improvements in photolit

nika2105 [10]

Answer:

0.000003782 m

0.000001891 m

0.000001197125 m

Explanation:

$\lambda$ = Wavelength = 248 nm

D = Diameter of beam = 1 cm

f = Focal length = 0.625 cm

The angle is given by

$\theta=\dfrac{1.22\lambda}{D}$

The width is given by

$d=2\theta f\\\Rightarrow d=2\dfrac{1.22\lambda f}{D}\\\Rightarrow d=2\dfrac{1.22\times 248\times 10^{-9}\times 6.25\times 10^{-2}}{1\times 10^{-2}}\\\Rightarrow d=0.000003782\ m$

The required width is 0.000003782 m

Minimum resolvable line separation is given by

$\dfrac{0.000003782}{2}=0.000001891\ m$

The minimum resolvable line separation between adjacent lines is 0.000001891 m

when $\lambda=157\ nm$

$d=2\dfrac{1.22\times 157\times 10^{-9}\times 6.25\times 10^{-2}}{1\times 10^{-2}}\\\Rightarrow d=0.00000239425\ m$

The new minimum resolvable line separation between adjacent lines is

$\dfrac{0.00000239425}{2}=0.000001197125\ m$

6 0

3 years ago

Which of the following is an example of an electromagnetic wave?

Gnom [1K]

light from a neon sign

3 0

3 years ago