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3 years ago

As the wavelength of a wave increases on the electromagnetic spectrum,

Physics

2 answers:

posledela3 years ago

8 0

Answer:

Explanation:

Waves can be measured using wavelength and frequency. The distance from one crest to the next is called a wavelength. The number of complete wavelengths in a given unit of time is called frequency. As a wavelength increases in size, its frequency, and energy decrease.

pishuonlain [190]3 years ago

4 0

Answer:

Explanation:

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What pressure will 14. 0 g of co exert in a 3. 5 l container at 75°c?

Ronch [10]

The pressure will 14. 0 g of co exert in a 3. 5 l container at 75°c is 4.1atm.

Therefore, option A is correct option.

Given,

Mass m = 14g

Volume= 3.5L

Temperature T= 75+273 = 348 K

Molar mass of CO = 28g/mol

Universal gas constant R= 0.082057L

Number of moles in 14 g of CO is

n= mass/ molar mass

= 14/28

= 0.5 mol

As we know that

PV= nRT

P × 3.5 = 0.5 × 0.082057 × 348

P × 3.5 = 14.277

P = 14.277/3.5

P = 4.0794 atm

P = 4.1 atm.

Thus we concluded that the pressure will 14. 0 g of co exert in a 3. 5 l container at 75°c is 4.1atm.

learn more about pressure:

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5 0

1 year ago

outward from a wall just above floor level. A 1.5 kg box sliding across a frictionless floor hits the end of the spring and comp

sweet [91]

Answer:

v = 0.489 m/s

Explanation:

It is given that,

Mass of a box, m = 1.5 kg

The compression in the spring, x = 6.5 cm = 0.065 m

Let the spring constant of the spring is 85 N/m

We need to find the velocity of the box (v) when it hit the spring. It is based on the conservation of energy. The kinetic energy of spring before collision is equal to the spring energy after compression i.e.

$\dfrac{1}{2}mv^2=\dfrac{1}{2}kx^2$

$v=\sqrt{\dfrac{kx^2}{m}} \\\\v=\sqrt{\dfrac{85\times (0.065)^2}{1.5}} \\\\v=0.489\ m/s$

So, the speed of the box is 0.489 m/s.

3 0

4 years ago

A thermogram identifies the warm and cool parts of an object by using

andrew11 [14]

Infrared rays are used in many forms of thermal technology. This is also used in weather reports to find the temperature of the surrounding areas.

3 0

4 years ago

Read 2 more answers

A stone is thrown vertically upward from the roof of the building. Does the position of the stone depend on the location chosen

mel-nik [20]

Yes it depend course you throw the stone at the roof it can't came course it in the roof

7 0

4 years ago

Which object will have the greatest acceleration if acted upon by a net force of 100N?

VashaNatasha [74]

Answer:

The object with the greatest acceleration is the one with the mass of 5 kg. Option A

Explanation:

The conclusion is easy for getting because we can use all the given options in the equation of newton for the mass, the force, and the acceleration. We can all the results in the attached image.

Note: We can realize that for a given force, while the mass of the object is less it will be more easy to accelerate it.

5 0

3 years ago