Answer:
We know there's two forces acting on a book while it sits on a table:the force of gravity pulling it down, and the normal force of the table acting upward on the book.
Explanation:
Answer:
When the object is at rest, it stays in a balanced condition and so it does not tend to move from its current position unless an external force tend to act on it. When the external force acts on it, there will be a displacement experienced by the object.
When a book is placed on a table, it does not move it is at rest and balanced position. So If you pick up a book from the floor and place it on the table. The potential energy of the book on the desk corresponds to the work required to move the book from the floor to the desk.
Pls hurry I’m timed Which describes the formation of horizon B?
•Froms at the surface
•features parent material
•undergoes the most change
•forms due to decomposed material
The first one. Hope this helped
What is the mass of a neutron?
1/2,000 amu
1 amu
2,000 amu
1/200 amu
The proton and the neutron both have 1 AMU of mass.
Answer:
B.
Explanation:
PLEASE HELP ASAP!!
Which of the following diagrams represents a complete series circuit?
your answer would be The one in the top right corner that looks a bit like this..
Diagrams B represents a complete series circuit. The two bulbs are connected with a series with a battery.
What is series circuit?In the series circuit, the amount of current flowing through any component in a series circuit is the same and the sum of the individual resistances equals the overall resistance of any series circuit.
The voltage in a series circuit, the supply voltage, is equal to the total of the individual voltage drops. The two bulbs are connected with a series with a battery.
Hence, diagrams B represents a complete series circuit.
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What is a temporary magnet
A piece of iron that behaves like a magnet when it is touching a permanent magnet.
how high up is a 3kg object that has 300 joules of energy
Answer: 10m (assuming gravity is 10m/s^2)
Explanation:
Energy (gravitational potential) = mass x acceleration due to gravity x change in height
E = mg∆h
300 = 3 x 10 x ∆h
∆h = 10m
what is the acceleration of an arrow that has a mass of 0.1 kg and a force of 9 N?
please include how to solve it >
Force = Mass x Acceleration
9N = 0.1kg x Acceleration
Acceleration = 9N / 0.1kg
Acceleration = 90 m/s^2
Answer:
Hope it can help you and mark me as a brainlist...
which type of tool was modified to view outer space
Answer:
telescope
Explanation:
Answer:
Astronomical telescope
Explanation:
A telescope is a device used to observe object that are at distant places. It is comprised of lens or mirrors (convex or concave). Light is allowed to pass through it , producing a reflected or a refracted image. The magnification of an image is directly proportional to the len's or mirror's size. A bigger lens produces a magnified and clear image as it allows more amount of light to enter the lens, whereas a smaller lens will produce a smaller image due to its smaller amount of incident light.
Thus, an astronomical telescope is a tool extensively used to view the outer space.
What causes a bolt of lightning
Answer:
The friction between two or more clouds cause them to heat up then it turns to static electricty and then hits the ground i hope you are happy anfd i hope this is correct :)
-Hello There-
This Is A Great Question That You Asked!
Lightning Is Caused When The Upper Clouds Have A Positive Charge And The Lower Clouds Have A Negative Charge. So When The Negative Charge And Positive Charge Meet That Means Lightning Happens Also When This Happens, The Air Separates Into Ions And Electrons.
Have A Great Day!
Which organ is being described in this statement?
If this organ malfunctions, all other body systems will be starved of oxygen.
A.
kidneys
B.
skin
C.
heart
D.
small intestine
Answer:
it is C heart
If the heart malfunctions, all other body systems will be starved of oxygen.
The cardiovascular system provides the body with vital nutrients and oxygen through a complex network, whereby all organs, body systems, and body tissues receive oxygen-rich blood.
Heart is a muscular-type organ that animals and humans possess, which performs the function of pumping blood to the rest of the body.Oxygenated blood flows from the heart through the arteries, which branch into the smaller arterioles until finally dividing into the capillaries.The capillaries pass into the venules, which open into the veins, which become larger in cross section until the blood finally flows back to the heart.In the capillary area, the transfer of oxygen and nutrients from the blood to the tissues can take place and also allows waste products to pass from the tissues into the blood.Therefore, we can conclude that if the heart malfunctions, all other body systems will be starved of oxygen.
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Atoms from which two elements would form ionic bonds?
Ionic bonds are formed between atoms of metals and nonmetals, resulting in the transfer of electrons from the metal to the nonmetal, creating a stable crystalline compound with zero net charge.
Explanation:Atoms from metals and nonmetals would form ionic bonds. Ionic bonds are electrostatic attractions between positively charged ions, or cations, and negatively charged ions, or anions. These attractions lead to the formation of a crystalline lattice in which the compound has a zero net charge. For example, sodium (Na), a metal, will donate its valence electron to chlorine (Cl), a nonmetal, leading to the formation of Na+ and Cl- ions. These ions will then attract each other, forming NaCl, also known as table salt, which exhibits a stable crystalline structure.
Another example is the formation of magnesium oxide (MgO) when magnesium (Mg), a metal with two valence electrons, reacts with oxygen (O2), a nonmetal with six valence electrons. Magnesium will lose two electrons to become Mg2+, while oxygen will gain those electrons to become O2-. The resulting compound is an arrangement of oppositely charged ions held together by the force of their attraction, resulting in MgO's stable ionic crystalline structure.
Which of the following groups of atoms are most likely to have similar properties?
nickel (28), calcium (20), bromine (35)
aluminum (13), germanium (32), antimony (51)
oxygen (8), selenium (34), tellurium (52)
Answer:
Oxygen, Selenium, Tellurium
Explanation:
Elements in the periodic table are arranged into rows and columns. Rows are called periods and columns are called groups. Elements that fall under the same group have common chemical properties.
Oxygen, selenium and tellurium all fall under the same group, which is Group VI A, or Group 16. This group is called the Oxygen group or Chalcogen Group.
Answer:
c
Explanation:
25 POINTS ------------------ (usatestprep)
Two iron balls of different mass are heated to 100°C and dropped in water. If the same amount of heat is lost by the two balls to water, what can be said about the final temperatures of the two balls? (Heat lost = mCpΔT, where m = mass of the object, Cp = specific heat capacity of the material, and ΔT = change in temperature).
A) Both balls will have the same temperature as the heat lost by both balls is the same.
B) Both balls will have the same temperature as the specific heat capacities of both balls are the same.
C) The lighter ball will have a higher temperature because the change of temperature is directly proportional to mass.
D) The heavier ball will have a higher temperature because the change of temperature is inversely proportional to mass.
Answer:
D) The heavier ball will have a higher temperature because the change of temperature is inversely proportional to mass.
Explanation:
As stated in the problem, the amount of heat released by each ball is
[tex]Q=mC_p \Delta T[/tex]
where
m is the mass of the ball
Cp is the specific heat of iron (so, it is equal for both balls)
[tex]\Delta T[/tex] is the change in temperature of each ball
In this problem, we are said that the amount of heat released by the two balls, Q, is the same. Cp is also the same: this means that the product [tex]m\Delta T[/tex] must be the same for the two balls. So, the mass and the change in temperature are inversely proportional: therefore, the heavier ball will have a smaller change in temperature. And since both balls starts from the same temperature, 100 C, this means that the heavier ball will reach a higher temperature than the lighter ball.
Can you complete and EXPLAIN please?????:(
Answer:
Explanation:
Well you have the voltages right, and that is no trivial matter. Each one of the resistors in a parallel circuit sees the same input voltages (in this case 6).
Now I think it would be a good idea to fill in the the resistance column.
R1 = 3 ohms
R2 = 6 ohms
R3 = 2 ohms
The total resistance can be calculated in two ways. I'll get around to doing both of them but I'll do the conventional way first. One hint: the total resistance must be smaller than the smallest resistor. Read that sentence over a couple of times. What it means is that it must be less than 2 ohms in a parallel circuit.
1/r1 + 1/r2 + 1/r3 = 1/rt
1/3 + 1/6 + 1/2 = 1/rt
Change all the denominators to 6ths.
2/6 + 1/6 + 3/6 = 1/rt
(2 + 1 + 3)/6 = 6/6 = 1
rt = 1
====================
So the current I is V/R
V = 6
R = 1
Current = V/R = 6/1 = 6 amps.
====================
The current in each resistor is
I1 = V / R1
I1 = 6/3 = 2 amps
I2 = V/R2
I2 = 6/6 = 1 amp
I3 = 6/2 = 3 amps
The total is I1 + I2 + I3 = 2 + 1 + 3 = 6 amps.
======================
Remember I said there was 2 ways of figuring out the total resistance. I did one of them about. Here's the other.
R = V / It
R = 6 / 6
R = 1 ohm just what you got before.
====================
Power
P = V * I
P1 = 6 * 2 = 12 watts
P2 = 6*1 = 6 watts
P3 = 6*3 = 18 watts
Pt = 36 watts.
Pt can be done by using the voltage * the total current
Pt = 6 volts * 6 amps = 36 watts, just what you would expect.
Need help with getting the answer!
Answer:
D. Salt Weathering
Explanation:
Salt weathering is defined as a geomorphic process resulting in the physical disintegration of rocks or stones and in the fretting of their surfaces. Often you tend to find the best examples of salt weathering in dessert areas and coastal areas. You can find three distinct types of weathering which are biological weathering, physical weathering, and chemical weathering.
which statement about magnetic force is false ? a. it is expected over a distance. b. it affects only certain types of matter c. it includes forces of attraction and repulsion d. it act only on materials that are touching a magnet.
d, its act only ob material that are touching a magnet
The false statement about magnetic force is: it act only on materials that are touching a magnet. Hence, option (d) is correct.
What is magnetic force?Electromagnetic force is a result of charge motion, which also produces magnetic force. We know that a moving charge creates a magnetic field around itself. In this situation, the magnetic force can be thought of as a force that results from magnetic fields interacting.
As magnetic force is a field force, it is expected over a distance. In every atoms, electron revolves around nucleus but a certain type of material has non-zero net magnetic momentum. Magnetic field affects only the material with non-zero net magnetic momentum. Same poles of magnets repulse whereas opposite poles of magnets attract. But due to being a field force, it does not act only on materials that are touching a magnet - it acts all material in its surroundings .Hence, option (d) is correct.
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Satellite communication is only possible using
A) analog transmission.
B) digital transmission.
C) sound waves to transmit signal.
D) cellular devices such as phones.
Answer:
its b
Explanation:
Answer:
B) digital transmition
Explanation:
using radio waves to transmit the information.
PLEASE HELP ASAP!!
Which of the following diagrams represents a complete parallel circuit?
Answer:
Explanation:bottom left is the answer just did this and the other answer is wrong
Answer:
bottom left
Explanation:
what Mathematical formula is used to calculate force?
Answer:
F = m × a
Explanation:
M= Mass
A= Acceleration
F= Force
Final answer:
The main formula for calculating force is F = ma, according to Newton's Second Law of Motion. For forces like gravity and tension, specific adaptations of this principle are applied. Other situations may use formulas derived from the basic principles, depending on the context, such as impulse or material properties.
Explanation:
The mathematical formula most commonly used to calculate force is derived from Newton's Second Law of Motion, which states that force is equal to mass times acceleration (F = ma). When calculating the force of gravity on a mass, the formula F = mg can be used, where 'g' represents the acceleration due to gravity. Additionally, when dealing with the force of tension, it must equal the force of gravity plus any force necessary to accelerate the mass. Note that for the calculation of normal force and tension force, if it is not given, Newton's 2nd Law should be applied.
Relativistic force considers force as the time derivative of momentum. The average force can also be computed using the concept of impulse, where average force equals the force time curve area divided by the time interval. Furthermore, when dealing with specific situations like the force on a cable, the force can be found using the formula F = (Y * A * ΔL) / L, where 'Y' is the Young's modulus of the material, 'A' is the cross-sectional area, 'ΔL' is the change in length, and 'L' is the original length.
The neutron is located in the what part of the atom?
Answer:
The neutron can be found in the nucleus of the atom with the proton.
Answer:
The neutron is located in the nucleus of an atom
Explanation:
Atom contain proton , neutron and electron. The electron is found in the outer part of an atom. The electron revolves around the atom. It determines how atom of elements are bonded.
The neutron and proton determines the mass of an atom. The proton number plus the neutron number determines the mass number of an element. The proton and neutron are located in the nucleus of an atom. The proton is usually positively charged while the neutron is neutral.
The neutron is located in the nucleus of an atom and it is neutral. The picture below demonstrates the location of neutron in an atom
Laws that implemented the consumers' right to be informed forbid __________.
A.
informative advertising
B.
competitive advertising
C.
misleading advertising
D.
consumer advertising
Laws that implemented the consumers' right to be informed forbid misleading advertising.
Answer is C.
Laws that implemented the consumers' right to be informed forbid misleading advertising.
Answer: Option C
Explanation:
The laws that are implemented to protect consumer’s rights include the things discussed below.
The advertisements about any product should be informative. It should provide valid advertisements about that product. It prohibits the act of advertising falsified information about the product.
Business sellers usually advertise their product with false information to cheat the customers and make them buy their product just to attain profit. They usually aim to sell the product without any advertised usage. So, this kind of act is highly prohibited by the laws of Consumer’s rights.
Which describe the image formed by a plane mirror? Check all that apply. virtual real upside down right-side up larger than the object smaller than the object same size as the object
Final answer:
The image formed by a plane mirror is virtual, upright, and of the same size as the object.
Explanation:
The image formed by a plane mirror exhibits specific characteristics. First and foremost, the image is virtual, meaning it cannot be projected onto a screen because it appears to be behind the mirror. The image is also upright, which means it has the same orientation as the actual object (it is not inverted). Moreover, the image is of the same size as the object, which differentiates it from images formed by curved mirrors that can be either magnified or diminished.
Part 1: What are the two groups of planets based on composition?
Part 2: Describe the composition of each group.
The two groups of planets based on their composition are the terrestrial planets, and the jovian planets. The terrestrial planets are small, and their composition is different than that of the jovian planets. The terrestrial planets have a solid iron inner core, liquid iron outer core, silicate mantle, and silicate crust. The jovian planets are also called gas giants because they are much larger and are gassy, not hard as the terrestrial planets. These planets have a silicate inner core, ice outer core, liquid metallic hydrogen layer, liquid hydrogen layer, and on the top gaseous hydrogen.
Answer:
Part 1: The Terrestrial and the Jovian.
Part 2: Terrestrial are hard, rocky and solid while Jovian are composed of gases and have no solid surface.
Explanation:
immature forms of many animals, like Guinea worms, before they morph into adults
Answer:
True
Explanation: If this is a true or false question it is *T*
The immature forms of animals which they are before metamorphosis are the larva.
Explanation:
The larva in plural form is known as the larvae. The eggs are hatch into the form of larva. These larvae grow in different stages which are marked according to the stages as I or II and so on.
After the larval development, when they are ready to be converted into adults, metamorphosis occurs. This process changes the larva into adults. Here the immature form gets converted into mature adult form.
Which region of the ear gathers information and funnels sound
The outer ear
The inner ear
The middle ear
The cochlea
The outer ear is the part of the ear that takes up the sound waves and funnels them into the canal.
Answer: Option A
Explanation:
The outer ear is a region of the ear that gathers the information and then funnels the sound into the middle ear. The phrase “funnels the sound” means that the waves of sound are converted into vibration.
These vibrations are then changed as the nerve signals by cochlea present in the inner ear. These nerve signals are read by the brain and the information is received.
Which of the following statements is true?
Question 13 options:
You are exposed to nuclear radiation every day.
Most of the nuclear radiation you are exposed to in the environment is man-made.
Naturally occurring nuclear radiation is called background decay.
All natural radiation is at a level low enough to be safe.
A. You are exposed to nuclear radiation every day.
Answer:
A. You are exposed to nuclear radiation every day.
An object of mass 80kg moves with a velocity of 4m/s .calculate the kinetic energy of the object
The kinetic energy of an 80kg object moving at a velocity of 4m/s is 640 Joules. This can be calculated using the formula for kinetic energy, which is K = 0.5 × m × v².
Explanation:The kinetic energy of an object can be calculated using the formula K = 0.5 × m × v², where 'K' is the kinetic energy, 'm' is the mass of the object, and 'v' is the velocity of the object. Substituting the provided values into the formula, we have K = 0.5 × 80kg × (4m/s)² = 0.5 × 80kg × 16m²/s² = 640 Joules. Therefore, the kinetic energy of the object is 640 Joules.
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What is the correct path of sperm cells through the male reproductive system?
Epididymis, seminiferous tubules, urethra, vas deferens
Seminiferous tubules, epididymis, vas deferens, urethra
Urethra, seminiferous tubules, epididymis, vas deferens
Seminiferous tubules, vas deferens, epididymis, urethra
The correct path of sperm cells through the male reproductive system is seminiferous tubules, epididymis, vas deferens, and then the urethra.
Explanation:The correct path of sperm cells through the male reproductive system is from the seminiferous tubules, where they are formed, to the epididymis, where they mature and are stored. From there, during ejaculation, the sperm move through the vas deferens, which is part of the spermatic cord, towards the ejaculatory duct. Finally, the sperm cells travel through the urethra and are expelled from the body. Thus, the complete path is: Seminiferous tubules, Epididymis, Vas deferens, Urethra.
what happens when the temperature of an object decreases
The molecules become more stiff and move slowly
How much heat is needed to raise the temperature of 50.0 g of water from 277 K to 315 K?
Answer:
You will need 7.953 kJ heat energy to raise the temperature of water from 277K to 315K.
Explanation:
To calculate how much heat is needed to raise the temperature of any substance, you need:
The mass of the substance, m, which for you is 50.0 g
The temperature change that occurs, ΔT, which for you is:
Δ[tex]T=(315-277)K=38K[/tex]
The specific heat capacity of the substance, c,
For water, the value of c is 4.186J/gK
Then, this is the equation you need:
[tex]Q=mc[/tex]ΔT
Where Q is the heat needed
So,
[tex]Q=(50.0g)(4.186J/gK)(38K)=7953.4J=7.9534kJ[/tex]
You need 7.953 kJ to raise the temperature of water from 277K to 315K.
The heat required to raise the temperature of 50.0 g of water from 277 K to 315 K is 7964 joules, using the specific heat capacity of water, which is 4.18 J/g°C and the formula Q = mcΔT.
To calculate the amount of heat required to raise the temperature of water, we use the specific heat capacity of water, which is 4.18 J/g°C. The formula we'll use is Q = mcΔT, where Q is the heat energy, m is the mass of the water, c is the specific heat capacity, and ΔT is the change in temperature.
For 50.0 g of water being heated from 277 K to 315 K, the change in temperature (ΔT) is (315 K - 277 K) = 38 K. Since the Kelvin and Celsius scales are offset by a constant but rise at the same rate, an increase of 1 K is equivalent to an increase of 1 °C. Therefore, the heat energy required can be calculated as follows:
Q = mcΔT
Q = (50.0 g) × (4.18 J/g°C) × (38 °C)
Q = 7964 J
Therefore, 7964 joules of heat energy is needed to raise the temperature of 50.0 g of water from 277 K to 315 K.
17. A simple machine made up of a slanted surface such as a ramp or stairs is called
A wheel & axle
B wedge
C pulley
inclined plane
Answer: Inclined Plane.
Explanation:
Inclined plane is a ramp or stairs.