Which of ONE of the following four elements has the most metallic properties?
The atomic numbers of the elements are listed below.
12
14
16
17
Answer:
12 (Magnesium- Mg)
Explanation:
Looking at the four numbers, we have:
Magnesium, Silicon, Sulfur, and Chlorine.
We can eliminate two of the answers immediately just by looking at the periodic table.
Sulfur and Chlorine are on the nonmetal side of the periodic table. So that's definitely not it. That leaves Magnesium and Silicon.
Silicon is a Metalloid. Magnesium is an Alkaline earth Metal.
Metaloids are elements that have a mix of both metal and nonmetal properties (luster, how it feels, etc.). Since it's a MIX and Magnesium is just straight METAL-
We can say Magnesium has the most metallic properties.
hope this helps!!
I'm contrast to Venus the coldest temperature yet measured on the surface of any body in the solar system is -235C
Answer:
Explanation:
I don't get what the relation here is. Venus is the hottest planet in our solar system. And yes, it's hotter than mercury despite mercury being closer to the sun. And your question talks about the coldest temperature measured which is -235 degrees Celsius. That surely isn't measured on Venus. I'm only wondering what Venus has got to go with cold and what exactly your question is
THIS IS MY EXAM HURRY PLS
Which is a way that the elements are grouped on the periodic table? (2 points) a Elements in the same row have the same number of protons. b Elements with similar bonding properties are in the same column. c Elements in the same column have the same number of neutrons. d Elements with similar mass are placed in the same column.
Answer:
elements in the same column have the same number of neutrons. elements with similar mass are placed in the same column.
Measuring a liquid's volume indicated the capacity ______ of the holds it. The most common units for expressing liquid volumes are _____ and milliliters.
Answer:
Measuring, comparing and estimating liquid volumes are taught using metric units like liters and milliliters and customary units like quart, pints, gallons and more. Capacity is actually the amount of liquid in the container, which is also the volume of a liquid.
Explanation:
A certain circuit is composed of two series resistors. The total resistance is 10kΩ. One of the resistors is 2 kΩ. The other resistor value is
Answer:
8kΩ.
Explanation:
10kΩ. - 2kΩ. = 8kΩ.
What is one way to store a lot of potential energy in the field between two charged objects?
Answer:
Explanation:
Two charged particles will vary in energy as we alter the distance between them.
A transformer has 100 turns on primary coil and 300 turn on secondary coil. If 20V Ac is applied to the primary coil, what would be the secondary voltage?
Answer:
the secondary voltage is 60 V.
Explanation:
Given;
number of turns on the primary coil, Np = 100 turns
number of turns on the secondary coil, Ns = 300 turns
voltage supply in the primary coil, Vp = 20 V
let the secondary voltage = Vs
Apply the following transformer equation to determine the secondary voltage;
[tex]\frac{V_s}{V_p} =\frac{N_s}{N_p} \\\\V_s = \frac{V_p \times N_s}{N_p}\\\\V_s = \frac{20 \times 300}{100} \\\\V_s = 60 \ V[/tex]
Therefore, the secondary voltage is 60 V.
11. 2 cm of rain falls in 10 minutes. The rain fall
steady at the rate of 20 m/s. The average
pressure on ground if rain drops comes to rest
after impact is
(a) 0.067 N/m^2
(b) 0.67 N/m^2
(c) 6.7 N/m^2
(d) 67 N/m^2
Answer:
WP LA æ WI all all Eduardo whatever Cincinnati quips I was just wondering if you want to be a good day
I feel dvmb for asking this question but... help? Please?
Force, it can speed up or slow down an object which can change the direction in which an object is moving.
contrast your Reflection from the back of a shiny spoon and from a plane mirror.
does anyone know what the answers are?
Answer:
Option (C) is the answer
Explanation:
may be it is possible if that we stand so far
Sound travels at different speeds in different mediums. Rank the three mediums sound can travel to from fastest to slowest.
Answer:
Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids.
Sound waves fall into three categories: longitudinal waves, mechanical waves, and pressure waves.
The following three resistors (Ohms) are in parallel with one voltage source. What is the voltage running through the C resistor?
Battery 8
Resistor A 7
Resistor B 6
Resistor C 6
Answer:
If the resistors are connected in parallel and the battery voltage is 8V, then voltage across resistor C is 8V.
What are three other types of new batteries that are being created today? (PLEASE DO NOT GIVE ME ANY LINK, JUST TYPE YOU ANSWER)
Answer:
Duracell
Amazon Basics 2 Pack CR1616 3 Volt Lithium Coin Cell Battery.
LiCB 20 Pack LR44 AG13 357 303 SR44 Battery 1.5V Button Coin Cell Batteries.
Explanation:
Hope this helps and have a nice day!
what is the second and third law of newton? asap
Answer:
In the second law, the force on an object is equal to its mass times its acceleration. I hope this helped!
Explanation:
Un trozo de hielo de 70 g se introduce en 450 g de agua a 23 ºC. ¿Cuál es la temperatura final de equilibrio suponiendo que no hay intercambio de calor entre el sistema y el ambiente?
Answer:
the answer is 250
Explanation: took the test
the potential difference across two plates is 1.50 V. if the plates are 8.22*10^-4 m apart, what is the electric field between them?
Answer: 1820
Explanation:
acellus
The speed of a wave with a frequency of 2 Hz (2/s), an amplitude of 3 m, and a wavelength of 10 m is
options:
0.2 m/s.
12 m/s.
5 m/s.
20 m/s.
Answer:
5 m/s
Explanation:
your welcome
The speed of a wave equals to Wavelength and Frequency. The SI unit of speed of wave is m/s. Thus, option D is correct.
What is speed of wave?The speed of wave is distance travelled by the wave in given time. It is related to both wavelength and frequency. Wavelength is measured in meters and frequency in hertz.
From the givens:
Frequency(f) = 2 Hz.
Wavelength(λ) = 10m.
Amplitude = 3m ( Amplitude does not affect the speed of wave)
Speed (v) = λ × f
= 10 × 2
= 20 m/s.
Therefore, the speed of the wave is 20 m/s. Hence, Option D is correct.
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A 1.5 kg object is hanging from a spring with a spring constant of 15 N/m on Earth. What is the period of its up-and-down motion?
1.) 0.10 s
2.) 0.31 s
3.) 2.0 s
4.) 2.5 s
Answer: 3) 2.0
Explanation: I guessed and got it right on my assignment :)
To celebrate her upcoming graduation Keysi books a trip on a space party-boat that travels at 99% the speed of light. She tells her mom she'll be "right back" and goes for a 3 day trip around the solar system. If the clocks on her space ship read 3 days, how many days does her mom wait for her to return? *
5 days
9 days
12 days
15 days
21 days
25 days
2. A loop of wire of area 0.7 m is moving into a 0.9 T magnetic field. If it takes 5
seconds for the loop to move from completely outside the field to completely inside the
field, what emf is produced?
Answer:
fem = -0.126 V
Explanation:
Faraday's law is
fem = [tex]- \frac{d \phi}{dt}[/tex]
where the flow is
Ф = B . A = B A cos θ
bold letters indicate vectors.
In this case, the normal to the area is parallel to the magnetic field, so the angle is zero and the cos0 = 1
fem = [tex]- A \ \frac{dB}{dt}[/tex]
in this case they indicate that to carry the loop from outside to inside the field in Δt = 5 s, so we can change them by variations
fem = [tex]- A \frac{\Delta B}{\Delta t}[/tex]
let's calculate
fem = - 0.7 (0.9 -0) / 5
fem = -0.126 V
Why is the loss of mass of the object only an apparent loss?
Answer:
archimides princile
Explanation:
Archimede's principle states that when a body is immersed partly or wholly in a liquid, there is an apparent loss in the weight of the body which is equal to the weight of the liquid displaced by the body.
Answer:
archimides
Explanation:
what is the relationship between the voltage across the energy
source and the voltages across the lamps in parallel
Answer:
وؤتي يتنييوتينستصميوخصز ءتث. ثنصطث
A disadvantage of a _____
telescope is that you need very large lenses.
A. refracting
B. reflecting
I WILL MARK YOU THE BRAINLIEST NO LINKS
The weight of the fluid that an object displaces is equal to the buoyant force acting on the object is
spring force
Archimedes Principle
buoyant force
Hooke's Law
Answer:
Archimedes' Principle
Explanation:
Its because Archimedes' Principle states "that the buoyant force on an object is equal to the weight of the fluid displaced by the object.... If you want to know the buoyant force on an object, you only need to determine the weight of the fluid displaced by the object."
What are tides? the regular daily rises and falls in sea level caused by the gravitational attraction of the Moon and Sun on Earth the regular weekly rises and falls in sea level caused by the gravitational attraction of the Moon on Earth the regular weekly rises and falls in sea level caused by the gravitational attraction of the Moon and Sun on Earth the regular daily rises and falls in sea level caused by the gravitational attraction of the Moon on Earth the regular daily rises and falls in sea level caused by the gravitational attraction of the Sun on Earth
Answer:
the regular daily rises and falls in sea level caused by the gravitational attraction of the Moon and Sun on Earth.
Explanation:
Tides can be defined as the rise and fall of water level in water bodies such as lakes and oceans due to the gravitational force of attraction exerted by the moon on earth. The side closest to the moon creates a bulge of water known as high tide. Low tides are generally experienced when a sea level is not within the bulge.
Generally, the gravitational pull of the Moon cause visible changes on planet Earth's surface.
This ultimately implies that, the pull of the Moon's gravity causes high and low tides on planet Earth's surface.
The various types of ocean tides based on the position of the Earth, Moon and the Sun are;
I. Neap tides.
II. Spring tides.
III. Low tide.
IV. High tide.
V. Brown tide.
VI. Rip tide.
VII. Red tide.
A +6.33 uC charge q1 is attracted by a force of 0.115 N to a second charge q2 that is 1.44 m away. What is the value of q2?
Answer:-4.1858
Explanation: I hate Acellus
If A +6.33 μC charge q₁ is attracted by a force of 0.115 N to a second charge q2 that is 1.44 m away. then the value of q₂ = 4.23 μC.
What is coulomb's law ?Electrostatic force is a force of attraction or repulsion between two unlike or like charges respectively. when like charges come closer to each other, they gets repel by one another and it gets attracted for unlike charges. Force of attraction or repulsion between two point charges are given by coulomb's law. The force of attraction between two charges are given by coulomb's law.
the law states that the force of attraction or repulsion between two point charges is directly proportional to product of magnitude of both the charge and inversely proportional to square of the distance between them.
i.e. F ∝ q₁q₂
F ∝ 1/r²
F ∝ q₁q₂/r²
F = kq₁q₂/r²
where k is proportionality constant k = 1/4π∈₀ = 8.9×10⁹
In this problem,
Given,
q₁ = 6.33×10⁻⁶ C
F = 0.115N
r = 1.44m
q₂ = ?
putting this values in the equation,
0.115 = 8.9×10⁹×6.33×10⁻⁶ ×q₂÷1.44²
q₂ = 4.23 μC.
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Two like charges are either both ______ or both _______
Answer:
negative or posotive i think
Explanation:
what current is taken by the lamp when it is connected to a 220 v mains supply? what is the resistance of the lamp
what is the resistance of the lamp
Answer:
Given parameters
Potential difference (V) = 220 V
Power of lamp 1 (P1) = 100 W
Power of lamp 2 (P2) = 60 W
Both the bulbs are connected in parallel. Therefore, the potential difference across each of them will be 220 V, because no division of voltage occurs in a parallel circuit.
We know that
Power = Voltage x Current
P = V x I
I = P/V
Lamp 1:
I1 = P1/V
I1 = 100/220
I1 = 5/11 A
Lamp 2:
I2 = P2/V
I2 = 60/220
I2 = 3/11 A
Net current (I) = I1 + I2
I = 5/11 + 3/11
I = 8/11
I = 0.7273 A
Hence, current drawn from the line is 0.727 A
Explanation:
Hope this helps!
What is force. in your own words
Answer:
force is a push or pull that exerted on a body
Answer:
force is that push or pull on a body that changes or tends to change the state of rest or of uniform motion in a straight line.
Explanation:
hope this helps