What type of wave is a microwave

Answers

Answer 1

Answer:

Answer: The correct answer is electromagnetic wave.

Explanation:

In the electromagnetic wave, both magnetic field and electric field are perpendiculars each other to the direction of the motion of the wave.

Electromagnetic spectrum is the range of frequencies of electromagnetic radiations.

Microwave is an electromagnetic wave. It falls in the range of electromagnetic spectrum between radio and infrared rays. It is a high bandwidth communication. It is used in RADAR and for heating purpose in microwave oven. Its frequency range lies between 300 MHz and 300 GHz.

Therefore, microwave is the type of electromagnetic wave.

Answer 2

Answer: it would be a electromagnetic wave
Hope that this would help you! =)

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A doctor diagnoses a man with an acute strain. Which job is most likely to cause an acute strain?

Answers

Answer:

A bricklaying job

Explanation:

To start with an acute strain is a type of inury that occurs when heavy objects are improperly lifted an individual in ways that the person's muscles becomes overstressed.

There are a number of jobs that are likely to cause acute strain including bricklaying jobs. People engaged in bricklaying jobs tend to improperly lift heavy objects, an activity that leads to repititive and prolonged overuse of muscles and tendons which is known as acute strain.

Another example of a job that can lead to acute strain is furniture moving.

A car weighs 186 N. It's being pushed forward by its engine with a force of 942 N.1. What is the normal force acting on the car by the road?
N
2. What is the force of friction acting on the car by the road?.
N
3. What is the coefficient of kinetic friction between the car and the road?

Answers

Ok that a good question

A textbook of mass 2.09 kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.190 m, to a hanging book with mass 3.08 kg. The system is released from rest, and the books are observed to move a distance 1.26 m over a time interval of 0.800 s.

Answers

Answer:

The tension in the part of the cord attached to the textbook is 6.58 N.

Explanation:

Given that,

Mass of textbook = 2.09 kg

Diameter = 0.190 m

Mass of hanging book = 3.08 kg

Distance = 1.26 m

Time interval = 0.800 s

Suppose,we need to calculate the tension in the part of the cord attached to the textbook

We need to calculate the acceleration

Using equation of motion

$y=ut+(1)/(2)at^2$

$a=(2y)/(t^2)$

Put the value into the formula

$a=(2*1.26)/(0.800)$

$a=3.15\ m/s^2$

We need to calculate the tension

When the book is moving with acceleration

Using formula of tension

$T=ma$

$T=2.09*3.15$

$T=6.58\ N$

Hence, The tension in the part of the cord attached to the textbook is 6.58 N.

12. Which of the following can be calculated if the length of the effort arm and the length of the resistance arm are given? (Points : 3)the mechanical advantage of a lever can be calculated.
the mechanical advantage of a wheel and axle can be calculated.
the mechanical advantage of a pulley can be calculated.
the mechanical advantage of a wedge can be calculated.

Answers

The best and most correct answer among the choices provided by your question is the first choice or letter A.

The mechanical advantage of a lever can be calculated if the length of the effort arm and the length of the resistance arm are given.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

Answer:

The mechanical advantage of a lever can be calculated.

Explanation:

If the length of the effort arm and the length of the resistance arm are given we can calculated the mechanical advantage of a lever. It is also defined as the ratio of output force to the input force. Mathematically, it is given by :

$MA=(F_o)/(F_i)$

Where

$F_o$ is the output force

$F_i$ is the input force

A lever is a simple machine in which there is a Plank that is free to free to rotate around a pivot. So, the correct option is (a) "the mechanical advantage of a lever can be calculated".

A bird can fly 30km/hr. How many hours does it take to fly 22,000 m?

Answers

It would take a bird .73 repeating hours.

The answer is (22/30) because 22000 m becomes 22 km.

What if two planets collided with each other but their gravitational force kept them together? Could this be a new form of the Big Bang where they become one and life can still be formed?

Answers

While the idea of two planets colliding and forming a new universe might sound intriguing, it doesn't align with our current understanding of cosmology and the Big Bang theory. Let's break down a few key points:

The Big Bang Theory: The Big Bang theory describes the origin of our universe as a singularity, an incredibly hot and dense point that rapidly expanded, leading to the formation of the universe we know today. It wasn't the collision of two planets or celestial bodies that created the universe, but a highly energetic event on a cosmic scale.

Gravity in the Big Bang: The Big Bang theory doesn't involve the gravitational force keeping two objects together; it involves the rapid expansion of the universe from a hot and dense state. Gravity played a crucial role in the evolution of the universe, causing matter to clump together and form galaxies, stars, and planets over billions of years.

Planet Collisions: Collisions between celestial bodies like planets can indeed happen, and they can lead to significant changes in the affected planets and their surroundings. However, these collisions do not result in the creation of an entirely new universe; they are local events in our existing universe.

Formation of Life: The formation of life on planets is a complex process that involves a combination of factors, including the right environmental conditions, organic molecules, and time. While a planet collision could have profound consequences for life on those planets, it doesn't create an entirely new universe or guarantee the formation of life. In summary, the scenario described doesn't align with current scientific understanding.

The Big Bang theory describes the origin of our universe, and it doesn't involve the collision of planets. Planet collisions are local events with significant consequences for the affected bodies but do not lead to the creation of a new universe or guarantee the formation of life.

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