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lisabon 2012 [21]
3 years ago
15

PLSS HELP

Physics
2 answers:
trasher [3.6K]3 years ago
8 0

Answer:

Wavelength and Frequency

____ [38]3 years ago
6 0

Answer:

"... in their Wavelength and frequency."

Microwaves and infrared radiations are similar because infrared and microwave radiation fit in the category of the electromagnetic spectrum.Both

transfer in the form as waves possessing wavering or constant changes in magnetic and electric fields. The waves are formed to be what we call... heat. Heat cannot be seen meaning the rays both don't have visibility to the human eye, however heat can be felt. So, t<u>he infrared rays have a different frequency than microwaves and has a wider range of specific frequency bands.</u> <u>Microwaves has specific bands of radiation. Infrared rays have a higher frequency than microwaves.</u>

Happy to Help! :)

<u />

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An artillery shell is launched on a flat, horizontal field at an angle of α = 40.8° with respect to the horizontal and with an i
Lina20 [59]

Answer:

1317.4 m

Explanation:

We are given that

Angle=\alpha=40.8^{\circ}

Initial speed =v_0=346m/s

We have to find the horizontal distance covered  by the shell after 5.03 s.

Horizontal component of initial speed=v_{ox}=v_0cos\theta=346cos40.8=261.9m/s

Vertical component of initial speed=v_{oy}=346sin40.8=226.1m/s

Time=t=5.03 s

Horizontal distance =Horizontal\;velocity\times time

Using the  formula

Horizontal distance=261.9\times 5.03

Horizontal distance=1317.4 m

Hence, the horizontal distance covered by the shell=1317.4 m

8 0
3 years ago
A jumbo jet weighing 65,000 kg Is accelerating at 3 m/s^2 while its jet engines are putting out 200000 N of thrust.
sveticcg [70]

Answer:

Fa = 5000 [N]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of forces on a body is equal to the product of mass by acceleration.

Let's assume that the movement of the plane is to the right, any movement or force to the right will be marked with a positive sign, while any force or movement to the left, will be taken as negative.

The force of the turbine drives the plane to the right, therefore it is positive, the acceleration is constant and keeps the movement to the right, therefore it is positive, the wind drag force tries to prevent the movement of the plane to the left therefore it is negative, with this analysis we deduce the following equation.

ΣF = m*a

where:

ΣF = sum of forces [N] (units of Newtons)

m = mass = 65000 [kg]

a = acceleration = 3 [m/s²]

Fa = force exerted by the air [N]

200000 - Fa = 65000*3

Fa = 200000 - (3*65000)

Fa = 5000 [N]

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3 years ago
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klasskru [66]

Answer:

A vector quantity is a quantity that has both magnitude and direction.

Explanation:

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ikadub [295]

Yea what he said good luck

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Mars rotates on its axis, completing one revolution every 24.6 hours. The axis of mars is tilted at 25 degrees and 12 minutes relative to its orbital plane about the Sun. This produces seasons on the surfaces of Mars, similar to the seasons on Earth. 
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