Answer: A
Elements on the bottom left
Explanation:
Electronegativity of an element increases across the group in a periodic table. And decreases across the period in a periodic table. That is
Group 7, the halogen family has the highest Electronegativity and period one in that group has the highest.
You have a nightlight plugged into an outlet in the hallway, which uses 3.5 watts when plugged in. If the house circuit provides 120.0 volts, wh
is the current through this bulb?
A. 420 amps
B.
0.029 amps
C.
34 amps
D.
0.0083 amps
Answer:
I = 0.029 A
Explanation:
It is given that,
Power of hallway is 3.5 watts
The house circuit provides 120 volts
We need to find the current through this bulb. The power of electric bulb is given by :
[tex]P=VI[/tex]
[tex]I=\dfrac{P}{V}\\\\I=\dfrac{3.5}{120}\\\\I=0.029\ A[/tex]
So, the electric current is 0.029 A.
Answer:
I = 0.029 A
Explanation:
Along with X-Rays, which high frequency EM waves can be used to destroy
cancer cells? *
Radio
Microwave
Infrared
Gamma
2 A sailboat on a lake sails 40. meters north and
then sails 40. meters due east. Compared to its
starting position, the new position of the sailboat
is
(1) 40. m due east (3) 57 m northeast
(2) 40. m due north (4) 80. m northeast
Answer: 3
57m north east
Explanation:
Given that the boat sails 40. meters north and then sails 40. meters due east. The new position will be known by using pythagorean theorem.
P^2 = 40^2 + 40^2
P^2 = 1600 + 1600
P^2 = 3200
P = square root (3200)
P = 56.6 m
P = 57 m (approximately )
Therefore, the new position of the sail boat will be 57 north east
Compared to its starting position, the new position of the sailboat is 57 m northeast
The given parameters;
initial displacement of the sail boat, x₁ = 40 m north
final displacement of the sail boat, x₂ = 40 m east
The new position of the sail boat when compared with the starting position is the total displacement of the sail boat.
A sketch of the sail boat displacement;
↑ → → → → → → 40 m
↑
↑40 m
↑
The hypotenuse of this right triangle is the total displacement of the sail boat.
[tex]R^2 = 40^2 + 40^2 \\\\R^2 = 3200\\\\R= \sqrt{3200} \\\\R = 56.57 \approx 57\ m[/tex]
The direction of the sail boat is northeast
Thus, compared to its starting position, the new position of the sailboat is 57 m northeast
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Which statement is true about the ideal mechanical advantage of a third-class lever?
A It is always greater than 1.
B It is always equal to 1.
C It is always less than 1.
D It can be less than, greater than or equal to 1.
Answer:
It is always less than one.
Explanation:
Because the load covers more distance than the force when they move in the same direction.
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Answer:
c is correct option because moon will go away when we come closer to earth and it will cut in round shape...
please mark me BRAINLIEST
Answer:
C.
Explanation:
Because when we closer, it is rounder
Which of these does not have an electric charge?
neutron
proton
electron
atom
Answer:
i think its the first one...you could have searched it up though.
Explanation:
what is an example of a compressional wave?
Answer:
The wave front expanding out from an explosion is possibly the most dynamic example of a compressional wave. And a pulse of compressed air can transfer a LOT of energy. ... For a literal "compression wave" visualize accelerating a boat across the water, compressing the water it encounters into a "bow wave".
Sound is an illustration of a compressional wave. Mechanical waves like sound waves need a medium to travel through, such air, water, or solids.
A sound wave undergoes compressions and rarefactions as it passes through a medium.
Particles in the medium move parallel to the wave's propagation direction during a compressional wave.
When particles are close to one another, compression regions arise in the case of sound waves, creating high-pressure zones.
Following these compressed zones are rarefactions, when the particles are dispersed and low-pressure areas develop.
Thus, sound is an example of a compressional wave.
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a charged particle is 2×10^-4C determine the quantum number of the charge
Answer:
wedf
Explanation:
Which energy conversion correctly describes what happens when you are dancing
6. To which of these abrasive disks can you
apply a water-coolant?
(A) Concrete
(B) Metal
Answer: its B
Explanation:
Metal abrasive disks are used as a water coolant. These are used mostly to slice stones and metals. Grit discs have several advantages over various kinds of discs. They have such a relatively fast cutting speed. The grit disc sander is not a hefty instrument that can be easily held when operating on a scaffold.
Steel cutting fluids are abrasive or peening mediums composed of iron particles. They are typically offered in two sizes (shot and grit) that suit various industrial applications. Since these grains are made from smashed steel shot, they have sharp edges and broken parts.Therefore, the answer is "Option B".
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Give me one example of a sport that requires someone to have good reaction time?
Answer:
Baseball
Explanation:
Baseball because the ball can come at you at high speeds and you need to react quickly.
Which example shows separation of different wavelengths of light due to diffraction?
Answer:
spectrum
Explanation:
The spectrum formed different colors due to refraction of light
Answer:
A A A A A
Explanation:
correct on edge:)
Which describes how chemical changes are different from physical changes?
Select one: a. Chemical changes can be measured, but physical changes cannot. b. Chemical changes involve the formation of a new substance. c. Chemical changes release energy, but physical changes absorb energy. d. Chemical changes cannot be caused by oxygen.
Answer:
B. Chemical changes involve the formation of a new substance.
Explanation:
They can both release energy, both can be measured, and chemical changes can be caused by oxygen, so I believe it would be B.
What are physical properties?
Answer:
they are things that can't be turned back the way they were before, like when you mix an egg, you can't get the egg to unmix itself.
Explanation:
Plz ans this fast
Ur ans will be maked as brainliest
u'll get pts too
Plz solve this asap.....
Answer:
1) b,
2)a,
3)3seconds
4)10&30
5)0
Explanation:
Scientists can use rock layers to determine which of the following? Group of answer choices The mass of Earth The size of Earth The age of Earth The amount of land on Earth
Answer:
The age of the earth
Explanation:
The deeper the layer the older the age
HELP PLZZZZZ Consider the following data:
Current (A)
Resistance (Ω)
0.9
10
0.18
50
0.09
100
Which relationship is shown in this data?
As you increase the current, the resistance increases.
As you increase the resistance, the current decreases.
As you decrease the resistance, the current decreases.
There is no relationship between current and resistance.
Answer:
I think the answer is As you increase the current the resistance increases too.
The diagram shows the schematic symbol of a transistor.
Which is the correct label for the part of the transistor
marked with an X?
Х
base
outlet
gate controller
electrical supply
Answer:
base
Explanation:
In the schematic symbol of a transistor, the arrow in the symbol indicates the direction of flow. There are three terminals namely, emitter, collector and base.
When you apply 0.7V from base to emitter you will turn the transistor ON and allow a current to flow from collector to emitter.
With the x in the picture the base must be indicated because all other answers do not make sense.
The correct label for the part of the transistor marked with an X is base.
What is transistor?A transistor is a semiconductor device used to amplify the electrical signals and power. The transistor is one of the important part of modern electronics. It is consist of semiconductor material, have three terminals for connection.
In the place of mark X of a transistor, the arrow in the symbol indicates the direction of flow. There are three terminals called as emitter, collector and base.
The base is indicated by the mark X in the picture.
Learn more about transistor.
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What is the difference between a mixture and a pure substance? Give an example of each.
Answer:
A pure substance (an element or a compound) is made up of only one type of atom, or molecule.
Examples: water (H2O molecules), oxygen (O2 molecules), argon (Ar atoms).
A mixture is made of up of more than one type of atom or molecule.
Examples: salt water (H2O molecules, Na+ ions, Cl- ions),
air (N2 molecules, O2 molecules, Ar atoms, CO2 molecules)
Note: the composition of a pure substance is fixed, but the composition of a mixture can vary. Two salt water solutions might not have the same concentration of salt. Or, if you prefer, one blueberry muffin might have more blueberries in it than another blueberry muffin.
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If a car is traveling at the speed of light and the car turns on the headlight, what would happen? Would the headlight not turn on at all, would the headlight travel at twice the speed of light, or would the headlight act like a flowing sink flowing out light?
Answer:
flowing sink flowing out light
Explanation:
Adding a best-fit line to the scatter plot shown below would be an example of _____.
A. making an inference
B. drawing a conclusion
C. checking a prediction
D. correcting a hypothesis
Look at the figure below and calculate the length of side x.
A. 12.6
B. 14.5
12
C. 10.3
u
у
O D. 8.5
45
Answer:
8. 484 so 8.5cm is the answer
Explanation:
Trig ratio.. I used cosine here
Cos 45= x /12
X = 12 x cos 45
= 12 x 0.707
= 8.484
=8.5
Temperature is a measure of
Answer:
degree celsius
Explanation:
it's measured in degree Celsius
3. If substance A has half the index of refraction of substance B, which is (most likely) more dense
Answer:
The correct answer is A!
Explanation:
Determine the ratio of the resistivity of pure water to silver?
3 x 10 11.1
1:3
1:3 x 10 11.1
Answer:
[tex]3 \cdot 10^{11} : 1[/tex]
Explanation:
Silver is a generally excellent conductor, this implies its resistivity is low (from table, we can check the exact worth i.e [tex]\rho_s = 1.6 \cdot 10^{-8} \Omega m[/tex])
Pure water, rather, is an extremely awful conductor, this implies its resistivity is exceptionally high, of order of [tex]k \Omega \cdot m (10^3 \Omega m )[/tex]
Indeed, even without knowing the exact estimation of the pure water resistivity, we can appraise the proportion between the pure water resistivity and the silver resistivity by looking at the two orders of magnitude:
[tex]r= \frac{10^3 \Omega m}{10^{-8} \Omega m} \sim 10^{11}[/tex]
Therefore, we can say that the correct answer is
[tex]3 \cdot 10^{11} : 1[/tex]
ANSWER ASAP!! EASY!!
just fill in the blanks
Answer:
the first one is stay in motion and stay at rest
the second one is unbalanced and accelerate
i can't see the third one but i think it is equal because it may say Newton's third law states that...
Explanation:
Answer:
1. Stay in motion
2. Stay at rest
3. Unbalanced
4. Accelerate
Explanation:
Fill in the Blanks in this order and you will get it correct
Are these dimensional analysis answers correct?
Answer:
yes
Explanation:
because once you learn you get to know more answers that's why you should come to brainly.
A bird sitting on a hinged perch takes off from the perch, pushing the perch
in the opposite direction. The momentum of the perch
Answer:
The momentum of the perch is equal to it's own momentum gather to take off
Explanation:
According to the Newton third law of motion which state that: in every action, there will be an equal and opposite reaction.
This is the law that helps us to walk, paddle boats e.t.c.
And momentum is always conserved. Therefore, the momentum of the perch is equal to it's own momentum gather to take off
Mirrors produce images by doing which of the following to light?
A. Refraction
B. Diffraction
C. Reflection
D. Interference
E. Scattering
Answer: C
Reflection
Explanation: Light travels in a straight line. Reflection is one of the properties of light. And this is the property in which mirror make use of. The ability of light to bounce back. It's this bouncing back characteristics of light ray that eventually produce the image of an object by the mirror.
If the light ray is absorbed, no image will be produced.
please help me and i’ll give you brainliest if correct :)
Answer:
Accurate Measurements
Explanation:
Always put in accurate measurements when arguing
Answer:
accurately measurements