PHYSICS MIDDLE SCHOOL

A charged particle creates a(n) _____________field. Once this particle is in motion, this creates a(n) ____________ field. A) electric, magnetic
B) magnetic, electric
C) electric, gravitational
D) gravitational, magnetic

Answers

Answer 1
Answer: the answer would be a

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A child holds up a silver spoon and is surprised to see her reflection there. Which interaction between light and matter explains this?A. When light hits something relatively flat, smooth, and shiny, it is transmitted by the surface, allowing nearby objects to be seen on the surface. B. When light hits something relatively flat, smooth, and shiny, it is refracted by the surface, allowing nearby objects to be seen on the surface. C. When light hits something relatively flat, smooth, and shiny, it bounces off the surface, allowing reflected objects to be seen on the surface. D. When light hits something relatively flat, smooth, and shiny, it is absorbed by the surface, allowing refracted objects to be seen on the surface.
A car enters a tunnel at 24 m/s and accelerates steadily at 2.0 m/s2. At what speed does it leave the tunnel, 8.0 seconds later?

Which wave causes the medium to vibrate only in a direction parallel to the wave's motion?

Answers

longitudinal waves causes the medium to vibrate only in a direction parallel to the wave's motion

Which is greater, 300 kelvins or 25 degrees Celsius? Showhow you got the answer

Answers

Zero Celsius is 273.15 Kelvin.

So 25° Celsius is 298.15 Kelvin.

300 Kelvin is 1.85° Celsius warmer than 25° Celsius.
Big Deal !

When birds remain airborne and moving without flapping their wings, on what are they gliding?

Answers

The birds can glide in the air without moving their wings by maintaining the thrust of the air by their weight and move downward at a very slower rate.

Further Explanation:

The birds have a capability of flying high in the air without flapping their wings and still not falling down rather they glide downwards due to the up thrust of the air. This technique of the birds to keep them in the air without flapping their wings is termed as soaring.

The soaring birds make use of the air current and its thrust on their primary wings so that there is no turbulence experienced by them due to the pointed tips of their primary wings.

The birds should possess some mass in order to maintain a balance between the thrust and the weight of their body. That’s why the small birds are not able to maintain their flight but the bigger birds like vulture, eagle etc. experience sufficient air drag in order tio maintain their flight.

Thus, the birds can glide in the air without moving their wings by maintaining the thrust of the air by their weight and move downward at a very slower rate.

Learn More:

1. What type of mirror do dentist use brainly.com/question/997618

2. Which of the following is not a component of a lever brainly.com/question/1073452

3. Forces of attraction limit the motion of particles most in brainly.com/question/947434

Answer Details:

Grade: High School

Subject: Physics

Chapter: Up thrust

Keywords:  Airborne, flapping wings, birds, soaring, vultures, weight, maintain flight, gliding, move downward, turbulence, primary wings.

They're riding on thermals, these are rising columns of air caused by the uneven heating of Earth's surface from solar radiation.

Hope this helped!

Ladybug walks 10 cm forward and 5 cm backwards in 20 seconds what is the average speed of ladybug what is the average velocity

Answers

Answer:

Average speed = 0.0075 m/s

Average velocity = 0.0025 m/s along forward direction

Explanation:

Speed is the ratio of distance and time and velocity is the ratio of displacement and time.

Distance traveled = 10 + 5 = 15 cm = 0.15 m

Displacement = 10 - 5 = 5 cm = 0.05 m

Time = 20 seconds

\texttt{Average speed = }\frac{\texttt{Distance}}{\texttt{Time}}\n\n\texttt{Average speed = }(0.15)/(20)=7.5* 10^(-3)m/s\n\n\texttt{Average velocity = }\frac{\texttt{Displacement}}{\texttt{Time}}\n\n\texttt{Average velocity = }(0.05)/(20)=2.5* 10^(-3)m/s

Average speed = 0.0075 m/s

Average velocity = 0.0025 m/s along forward direction

Hey!

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Formula: Distance / Time = Speed

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Solution:

Speed = 15/20 = 0.75cm/sec

Velocity = 5/20 = 0.25cm/sec

10 + 5 = 15 (distance traveled)

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Answer:

Speed = 0.75cm/sec

Velocity = 0.25cm/sec going forward.

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Hope This Helped! Good Luck!

The ___________ energy in a mechanical system is determined by adding the potential and kinetic energy together.

Answers

Answer:

Mechanical energy

Explanation:

The mechanical energy in a mechanical system is the summation of its kinetic energy and its potential energy.

                         Mechanical Energy= Potential Energy +Kinetic energy

Potential energy is defined as the energy stored in a stable object and kinetic energy is defined as the energy of a moving object or energy required in the motion of a object.

Answer:

mechanical energy

Explanation:

i believe thats the answer hope that helps

Where is the magnetic field of a bar magnet the strongest? A.
at the north and south poles

B.
next to the south pole

C.
in the middle of the magnet

D.
between the north and south poles

Answers

The answer would be A, the north and South poles.
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