Radio works by transmitting and receiving electromagnetic waves. The radio signal is an electronic current moving back and forth very quickly. A transmitter radiates this field outward via an antenna; a receiver then picks up the field and translates it to the sounds heard through the radio
Answer:
radio work by transmitting and receiving electro magnetic waves.
What happens to particle movement/speed when energy is added to a phase?
what do you mean by electric wind?
Explanation:
The electric field is normal to any conductor charged surface, then any negatively charged sharp end will concentrate the electrons in order to achieve that (being rejected by the others on main body), that also implies a huge voltage drop nearby the edge, meaning high electric field in the direction aimed by the sharp end, that field becomes strong enough (when charged by electrostatic machines) to propel electrons out causing air movement in that direction (a flame will bend because of that wind).
Ion wind, ionic wind, coronal wind or electric wind is the airflow induced by electrostatic forces linked to corona discharge arising at the tips of some sharp conductors (such as points or blades) subjected to high voltage relative to ground. Ion wind is an electrohydrodynamic phenomenon
Hi, by the ways happy Halloween , I hope this really helps
Participating in physical activity can help to reduce stress in all of the following ways except: a. it releases stored energy b. it causes fatigue and exhaustion c. it releases tension d. it relaxes muscles please select the best answer from the choices provided. a b c d
Participating in physical activity can help to reduce stress in all of the following ways except it causes fatigue and exhaustion. Option b is correct.
What is physical activity?Anybody movement requiring energy expenditure that is produced by skeletal muscles is defined as physical activity. Physical exercise encompasses all forms of movement,
Whether it is done for fun, to go to and from locations, or as part of one's job. Physical activity, both moderate and strenuous, is beneficial to one's health.
Physical activity is good for your heart, body, and mind. Physical exercise aids in the prevention and treatment of noncommunicable illnesses including heart disease, cancer, and diabetes.
Depression and anxiety symptoms are alleviated by physical activity. Physical activity improves one's ability to think, learn, and judge.
Participating in physical activity can help to reduce stress in all of the following ways except it causes fatigue and exhaustion.
Hence option b is correct.
To learn more about physical activity refer to the link;
https://brainly.com/question/13154640
Answer:
b
Explanation:
did on edge
A 2.0 Kg box is being pulled up a ramp with a force of 25.0 Newtons. The ramp has an incline of 30 degrees. If the coefficient of friction is 0.752, find the acceleration of the block up the ramp. You may round your answer to the nearest tenth where necessary!!!
Answer:
The acceleration of the block is 1.21 m/s².
Explanation:
Given that,
Mass = 2.0 kg
Force = 25.0 n
Angle = 30°
Coefficient of friction = 0.752
We need to calculate the acceleration of the block
Using balance equation
[tex]F-(mg\sin\theta+\mu mg\cos\theta)=ma[/tex]
Put the value into the formula
[tex]25-(2.0\times9.8\sin30+0.752\times2.0\times9.8\cos30)=2.0a[/tex]
[tex]a=\dfrac{25-(2.0\times9.8\sin30+0.752\times2.0\times9.8\cos30)}{2.0}[/tex]
[tex]a=1.21\ m/s^{2}[/tex]
Hence, The acceleration of the block is 1.21 m/s².
A 1500 kg car is moving at 15m/s what is the impulse experienced by the car
*Pls put the formula of how you did it too*
Answer:
22500 Ns
Explanation:
Given,
Mass ( m ) = 1500 kg
Velocity ( v ) = 15 m/s
Formula : -
Impulse = mv
Impulse
= 1500 x 15
= 22500 Ns
Therefore,
22500 Ns is the impulse experienced by the car.
Note : -
Ns is the unit of impulse.
help plzz i nned to do this
Hello!
Answer:
The answer is D
Wish you luck!
________ is a force which is exerted by earth on the objects *
Answer:
force of gravity
Explanation:
i hope this helps and learn well
What is the volume of the shape below?
Help me plzzzz
Answer:
20cm
Explanation:
2 × 5 × 2 = 20
Hope this helps.
Which force is represented by the arrow at
B?
A) Force of friction
B) Force of gravity
C) Tension force
D) Normal force
A is pulling the block straight down toward the center of the Earth, no matter what the slope of the plane may be. A is the force of gravity.
The directions of B and C both depend on the slope of the plane.
B is a force that's parallel to the plane, pulling the block UP the plane. B is the force of friction.
C is a force perpendicular to the plane, preventing the block from falling down through the plane. C is the normal force.
Answer:
A is pulling the block straight down toward the center of the Earth, no matter what the slope of the plane may be. A is the force of gravity.
The directions of B and C both depend on the slope of the plane.
B is a force that's parallel to the plane, pulling the block UP the plane. B is the force of friction.
C is a force perpendicular to the plane, preventing the block from falling down through the plane. C is the normal force.
Explanation:
Rebecca and John take their daughter to Disney World. When they asked their daughter two years later if she remembered going she answered no. At the time of the trip to Disney World, the couple's daughter was MOST likely _____ years of age
Answer:
3
Explanation:
1-3 age is hard to remember
A ball is thrown straight up. As it is rising
Answer:
B.
Explanation:
When a ball is thrown vertically upward, the acceleration due to gravity always acts downward to the ball. When the ball is moving up the acceleration due to gravity will decrease
hope thats right!
The sun accounts what percentage of mass in our solar system?.
Explanation:
The sun lies at the heart of the solar system, where it is by far the largest object. It holds 99.8% of the solar system's mass and is roughly 109 times the diameter of the Earth — about one million Earths could fit inside the sun.
Answer:
99.9%
Explanation: The sun is a major and significant part of our solar system and our daily life so it is 99.9%.
What is the difference between propagation speed and the frequency of a wave? Does one or both affect wavelength? It so, how?
What is the mass of an object with a velocity of 24.1 m/s and a momentum of 28.3 kg m/s?
Answer:
1.17427...kg
Explanation:
Assumptions: no friction, no air resistance, no internal resistance, and it is 1 dimensional travel for velocity.
p=mv, where p is momentum, m is mass, and v is velocity
28.3=24.1(m)
divide both sides by 24.1
you get 1.174273859
Answer:
[tex]\boxed {\tt 1.17427386 \ kilograms}[/tex]
Explanation:
The formula for momentum is:
[tex]p=mv[/tex]
From this formula, we know that mass can be found by dividing the momentum by the velocity.
[tex]\frac{p}{v}=m[/tex]
The momentum is 28.3 kg m/s and the velocity is 24.1 m/s
[tex]p=28.3 \ kg \ m/s \\v=24.1 \ m/s[/tex]
[tex]\frac{28.3 \ kg \ m/s }{24.1 \ m/s} =m[/tex]
Divide. The meters per second or "m/s" will cancel each other out.
[tex]\frac{28.3 \ kg}{24.1} =m[/tex]
[tex]1.17427386 \ kg=m[/tex]
The mass of the object is 1.17427386 kilograms.
Scientists think that birds and other animals, such as sea turtles, may use Earth’s magnetic field to help them navigate. Research which animals might find their way using Earth’s magnetic field and investigate the evidence scientists have found that supports the idea. What would happen to the animal if Earth’s magnetic field were reversed?
Answer:
Magnetoreception (also magnetoception) is a sense which allows an organism to detect a magnetic field to perceive direction, altitude or location. This sensory modality is used by a range of animals for orientation and navigation, and as a method for animals to develop regional maps
The hubble telescope has helped confirm what about the universe?.
Answer:
Helped pin down the age for the universe now known to be 13.8 billion years, roughly three times the age of Earth. Discovered two moons of Pluto, Nix and Hydra. Helped determine the rate at which the universe is expanding. Discovered that nearly every major galaxy is anchored by a black hole at the centre.
Explanation:
When you throw a sheet of paper and a stone from a certain height under what condition will the two fall to the ground at the same time?
Answer:
when there is no resistance.( in a vacuum)
Explanation:
this is because of acceleration due to gravity that is equal on both objects.
What color of visible light has the highest energy?.
Jalen is sliding around on his kitchen floor in his
socks going 3m/s. He gets to the living room, and
when he slides onto the carpet, his velocity slows
down to 1m/s. He also notices that his feet feel
warmer. Why did this happen? Explain your
answer.
Answer:
his feet feel warmer because of friction. when friction takes place then an object will warm up because friction is a universal law that always takes place. if you rub your hands together, you also experience the heat of frictional I hope that helped.
How can I get better at Physics?
Answer:
by paying attention in class, studying and using notes on everything
Explanation:
If a train travels 300m in 25 ,how fast is it going
Explanation:
distance= 300m t= 25s
speed= distance/time
speed= 300/25
speed = 12ms^-1
it will go 100m In 25, bc a train is fast so it will a 100 as twice
Explanation:
So make sure you have the answer please
The Lazarus mission was ___ years ago?
It takes _____ years to get to Saturn from earth.
Answer:
10 years ago
8 years
Explanation:
At its closest, Saturn is 1.2 billion kilometers away from Earth. So with today's spacecraft technology, you'll need about eight years to make the trip.
When you have been swimming swimming and you come out of the pool, you may feel cold. Use your understanding of endothermic processes to explain why.
Explanation:
Edothermic process is the absorbtion of heat.
It is the opposite of exothermic process which is the release of energy. In edothermic process thermal energy is absorbed from the surrounding
predict the long term cost and benefit of using renewable or non renewable resources. please help will give brainliest
Answer:
The long term cost and benefit of renewable resources is that it is most likely a one-time purchase kind of thing. For example, if you use solar energy, you only have to buy the solar panels for your roof once. However, if you use gas oil to cook, you have to keep buying since it runs out. Sunlight doesn't run out.
The long term cost and benefit of non renewable resources is that it is something you can profit off of very easily. It will take a lot of time for people to completely switch over to renewable resources, so it is something that can steadily bring in money. Examples of non renewable resources that people constantly use is oil, gas, coal, etc.
Which characteristic describes an organism of Kingdom Animalia when compared to plants?
A) It is able to move on its own.
B) Sunlight is used to make its own food.
C) Water is not needed for survival.
D) It does not need sunlight to survive.
Answer:
A
Explanation:
Because plants cant move and animals can.
The characteristic which describes an organism of kingdom Animalia is able to move on its own when compared to the plants kingdom. Thus, the correct option is A.
What are the characteristics of Animalia Kingdom?Animals are the multicellular, eukaryotic organisms in the biological kingdom Animalia. Animals are the organisms which consume organic material, breathe oxygen gas, are able to move on their own, can reproduce sexually and produce organisms which contain genetic information which is recombination of both the parents, and these organisms go through an ontogenetic stage in which their body consists of a hollow sphere of the cells, the blastula, during the embryonic development of organisms.
Organisms belong to Animal kingdom show some characteristics which are not found in the organisms which belong to the plant kingdom including movement. Animals can move on their own while plants cannot.
Therefore, the correct option is A.
Learn more about Kingdom Animalia here:
https://brainly.com/question/9031447
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How many Protons does Na (sodium) have
O 23
O 12
O 13
O 11
F
F
A
a
a
F
F
F
D
E
Order greatest to least
Answer:
E B D A C F
Explanation:
Answer:
E B D A C F
Explanation:
50 points for correct answer.
Which type of electromagnetic wave has the most energy?
A. Microwaves
B. Gamma rays
C. Radio
D. Visible light
Answer:
B Gamma-Rays
Hope this Helps! Please mark Brainliest!
Answer:
The answer is B. Gamma Rays.
Explanation:
I take AP EX lessons and quiz all the time.
A drag racer starts from rest and accelerates at 10 m/s squared for the
entire distance for 5.4 seconds. What is the velocity of the car at the end
of the race?
Answer:
54 [tex]\frac{m}{s}[/tex]
Explanation:
[tex]v=u+at[/tex]
where [tex]u=[/tex]initial velocity
[tex]v=0+(10\frac{m}{s^{2} } )[/tex]×[tex](5.4s)[/tex]
[tex]v=54\frac{m}{s}[/tex]