. ........... is a mirror with a flat reflecting surface and is made of ordinary glass.
Answer:
Plane mirror.
Explanation:
A plain mirror is a mirror with a flat reflecting surface and is made of ordinary glass.
Reflection can be defined as a phenomenon which typically involves a change in the direction of a ray of light or waves as it falls on a smooth surface.
Simply stated, reflection occurs when a ray of light or wavefronts bounces off a smooth surface such as a plane mirror.
Generally, the angle of reflection equals the angle of incidence when a light ray strikes or hits a plane mirror.
The properties or characteristics of the images formed by a plane mirror include;
I. They are virtual and erect (upright).
II. It is the same size as the object formed.
III. It has the same distance from the plane mirror as the distance of the object from the mirror.
Hank's mother got tired of everyone's cell phones ringing during dinner, so she wrapped all
of the cell phones in aluminum foil at dinnertime. Which of the following best explains how
Hank's mother solved her problem?
Cell phone signals are electromagnetic waves, which are absorbed by the aluminum foil
Cell phone signals are electromagnetic waves, which are reflected by the aluminum foil
Cell phone signals are mechanical waves, which are absorbed by the aluminum foil
O Cell phone signals are mechanical waves, which are reflected by the aluminum foil
Answer:
Cell phone signals are electromagnetic waves, which are reflected by the aluminum foil
Answer:
I think the best answer would be the first but am I the only one wondering why the mom didn't just turn off the phone but instead she had to be extra and wrap them up like a gift to give them after dinner.
Тесты имеют различные нормы-шкалы значений: социальные, возрастные и т.П. Индивидуальный показатель теста соотносится с его нормой. Норма теста обычно определяется в результате тестирования большой выборки испытуемых определенного возраста и пола и усреднения полученных оценок с их последующей дифференциацией по возрасту, полу и ряду других показателей. Норма теста - это средний уровень развития большой совокупности людей, похожих на данного испытуемого по ряду социально-демографических характеристик. То есть, это средний диапазон значений на шкале измеряемого свойства.
A liquid has a specific heat of 9 J/g • °C and a solid has a specific heat of 3 J/g • °C. Which
substance, the solid or liquid will heat up faster? Which will cool down faster?
Explanation:
substances have been in direct sunlight for up to 60 minutes. ... cool the fastest? ... 0.60 J/g °C. Match & then label each substance with its specific heat capacity ...
PLEASE HELP ASAP!!
Select the correct answer.
According to this map, which county in Florida is most in need of safe rooms and hurricane ties?
A.
Hillsborough
B.
Jefferson
C.
Palm Beach
D.
Miami-Dade
Answer:
I think it's Miami-Dade
Explanation:
i hope this helps
Answer:
it is miami-dade!
Explanation:
A sled starts off with an initial velocity of 8 m/s and slows down to 2 m/s after 3 seconds. What was its acceleration?
Answer:
-2m/s
Explanation:
What happens to the force between charged and uncharged objects as the distance between them decreases?
Answer:Thus, if each of the charges were reduced by one-half, the repulsion would be reduced to one-quarter of its former value. Also In electrostatics, the electrical force between two charged objects is inversely related to the distance of separation between the two objects. ... And decreasing the separation distance between objects increases the force of attraction or repulsion between the objects.
Hope this helps have a awesome night/day❤️✨
Explanation:
Nothing, until those two objects physically touch each other; contact aligns polarity among the now single shared mass.
(Your question never states if both objects are unique or similar polar charges, so I just assumed they were both neutral objects existing within an electric field.)
So a better question would then be, what is gravity’s relationship with an electric field?
You could solve this with the following: confine the electric field’s volume to a set variable (never increasing nor decreasing in size or shape); density is variable and easily definable. This creates the limit to build upon. This density has to be fluid and has electron mass (full of electrons at rest mass, so with substance but no movement). Within, create a closed system (the hard part in this equation; outside interference like ambient light will eschew results) where each variable of kinetic energy then is accounted for or measurable (including heat and light, and the physical movement of the two objects)
Determine the mass for both objects, calculate gravity for both and each body’s inertia on the other as a sum over distance. record results. Polarity is shared across the masses until there is no longer inertia (one mass or contact).
The net force of two forces F1 and F2 acting in the same direction is 85N.And if is 15N when they are exerted in opposite directions. Find the magnitudes of F1 and F2
A wave has a period of 4 seconds. Find it’s frequency.
Answer:
4 x the frequncy
Explanation:
So 4 x the number
Your personal hygiene is more important to avoid you becoming ill, more so than spreading germs.
True
False
The cerebellum is part of the
____?
Explanation:
i think it the central nervous system
If a ball is rolling down a hill, it has both kinetic and potential energy. The ball has
38 J of potential energy because of its height and 80J of kinetic energy because
of its motion. How much mechanical energy does the ball have
The answer is 118 J :)
Explanation:
38 +80 = 118.
What is the net force acting on a jet that has a mass of 130,000kg and it accelerates at a rate of 6m/s as it takes off
Help!Yall get brainliest
Answer:
Explanation:
Good sources include barley, oatmeal, beans, nuts, and fruits such as apples, berries, citrus fruits, and pears. Many foods contain both soluble and insoluble fiber. In general, the more natural and unprocessed the food, the higher it is in fiber. There is no fiber in meat, dairy, or sugar.
Tom puts a metallic cover over his car's windshield after parking. How does this control
the sun's rays during a sunny day?
There is a small hole of radius r in a hollow sphere, which is immersed in a liquid. Upto what maximum depth it can be immersed so that liquid may not enter in it? Density of liquid is d and surface tension is T.
Answer:
h = 4T/dgr
Explanation:
Using Laplace law for spherical bubble, the pressure difference P'- P = 4T/r where T = surface tension and r = radius of sphere.
Now, the pressure difference on the hollow sphere P' - P = dgh where d = density of liquid, g = acceleration due to gravity and h = maximum depth to which sphere must be immersed.
So dgh = 4T/r
h = 4T/dgr
hehe i hate being a single girl....what physical properties dose europium have
Answer:
Europium has a bright shiny surface. it's steel grey and has a melting point of 826 degree Celsius and a boiling point of about 1,489 degree Celsius.
Explanation:
the density is 5.24 grams per cubic centimeter.
motion is the act of ___
the options are movement, feeling, chemical engergy and sleep
Answer:
hi
Explanation:
HELPPPP WILL MARK B IF CORRECT!!!!
HELP PLEASE
44. Two wave pulses are traveling along a string
toward each other as represented in the diagram
below.
(D is interference)
The phenomenon of interference occurs when two wave pulses are traveling along a string toward each other. Option D is correct.
What is the interference of waves?The result of two or more wave trains flowing in opposite directions on a crossing or coinciding pathways. This phenomenon is known as the interference of waves.
The effect is the sum of the individual wave amplitudes at each site where more than one wave is present.
When two wave pulses are traveling along a string toward each other. They meet and the phenomenon is occur known as interference.
Hence the phenomenon of interference occurs when two wave pulses are traveling along a string toward each other.
To learn more about the interference of waves refer to the link;
https://brainly.com/question/16098226
Use the scenario below for questions 4-7.
A rocket launched at a 60-degree angle has a launch velocity of
31.00 m/s.
4. What is the magnitude of the rocket's initial vertical velocity?
a. 10 m/s
b. 15.5 m/s
c. 26.85 m/s
d. 31 m/s
SOMEONE PLEASE HELP ME
The average kinetic energy of the particles of two pieces of iron at the same temperature and mass would be __________.
Question 1 options:
Different
The same
Not equivilent
With in 500 degrees of eachother
Answer:
The same.
Explanation:
Temperature is a measure of the average kinetic energy of a substance; if two pieces of iron have the same temperature, then their particles will have the same amount of average kinetic energy.
Answer 1 - The average kinetic energy of the particles of two pieces of iron at the same temperature and mass would be the same
Answer 2 - The particles of an object move FASTER when the temperature increases
Answer 3 - When a tight fitting lid is run under hot water, the lid
E/X/P/A/N/D/S as the temperature increases.
Answer 4 - I dont know sorry!
Answer 5 - What happens when something reaches absolute zero?
The p a r t i c l e s completely stop moving
A snowflake falls from a cloud that is 500 m above the ground. It hits the ground after
being pulled down due to the acceleration of gravity (-10 m/s2). How fast will it be
going as it hits the ground?
Answer:
i wabnt the points lol
Explanation:
An ohm is best described as a unit of measure for...
A. electrical resistance
B. electrical current
C. electrical potential difference
D. magnetic field strength
What has more kinetic energy 15 kg ball rolling north at 15 m/s or a 15 kg ball rolling backwards at 7m/s
Answer:
15 kg ball
Explanation:
West
East
<
디
50 Newtons
40 Newtons
What is the net force on the box?
А
10 Newtons West
B
10 Newtons East
с
90 Newtons West
D
90 Newtons East
A . 10 Newton West
that's my Answer
HELP ME PLEASE I need the answer now and I will give all my brain lists
Answer:
I'd say it's B
Sorry if I get you wrong-
A hair dryer is rated at 1.2kW. When it is plugged into a standard outlet and turned on, what is the current in the hair dryer?
Answer:
1200 watts at a standard 120v draws 10 amps
Each bat can produce different frequencies of ultrasound. Explain why this is useful if there are many bats hunting together.
Answer: Although low frequency sound travels further than high-frequency sound, calls at higher frequencies give the bats more detailed information--such as size, range, position, speed and direction of a prey's flight. Thus, these sounds are used more often.
Explanation:
1. What is the difference between thermal energy and heat? Give an example.
Answer:
when you run u get tied
Explanation:
I do not now this one