Answer:
option A is your answer hope it will help you
Answer:
up with the argument that trade was better than conquest or warfare at spreading religions such as Islam. Which two pieces of evidence would support this argument?Mahmūd attacked India because of its wealth from the Silk Road trade.Islamic scholars moved from Baghdad to Delhi in 1258.The Ramayana and Mahabharata are popular subjects of Southeast Asian art.Conquering armies did not spread religion and culture efficiently.Islam reached southern India before Mahmūd attacked northern India.
Explanation:
Which type of energy is the energy of motion (or movement)?
Mechanical
Chemical
Electrical
Radiant
Answer:
Kinetic energy
Kinetic energy is the motion of waves, electrons, atoms, molecules, substances, and objects.
3. which item is not an asset
house
car
loan
cash
4. Credit scores are not made of
payment history
length of credit history
income
debt
5. When starting your credit history, you will most likely be given a low-credit-limit, high interest-rate credit card. You should pay: (CHOOSE THE BEST OPTION)
the minimum due
that same amount each time
in full, on time, every time
Answer:
I think a loan is not a asset.
Explanation:
What is NOT a benefit of being flexible? easier to do things looser muscles tight muscles less likely to get hurt
Answer: Looser muscle
Explanation: If your muscle are tight all the time it’s unhealthy and can cause cramps all the time rather than loose muscles that are relaxed
Answer: The correct answer to this is tight muscles.
Explanation:
I done the same quiz and the answer was tight muscles.
Which weather event is capable of destroying homes and uprooting trees due to a low-pressure area at its center generating winds of up to 300 mph?.
Answer:
A tornado is capable of doing this
Answer:tornado
Explanation:
Why the electric bell will not work if the Electromagnet is replaced with a permanent magnet?
Please help!
Will give the brainliest !
As electromagnet are temporary magnets so we can easily change its properties. An electric bell uses an electromagnet which is not a permanent magnet.So the given statement in the problem that a permanent magnet is used in an electric bell is false
how many kilojoules of heat must be removed to freez 35 g of water at 0c
Answer:
..
Answer
How many joules does it take to melt 35 g of ice at 0oC ?
Hint:There is a formula to calculate the energy required to melt some amount of ice and it is as follows.
q=n×ΔH
Here q = amount of heat
n = number moles of water
ΔH = change in enthalpy
Complete step-by-step answer:- In the question it is asked to calculate the number of joules required to melt 35 g of ice at 0oC .
- The data given in the question is 35 g of ice at 0oC.
- The formula to calculate the energy to melt the 35 gm of ice is as follows.
q=n×ΔH
Here q = amount of heat
n = number moles of water
ΔH = change in enthalpy
- First we have to calculate the number of moles of water from the given data.
- The number of moles of water for 35 g of ice is as follows.
number of moles for 35 g of water = 3518=1.94moles
- Means we have to calculate the energy required to melt 1.94 moles of the water.
- The enthalpy of fusion of water = 6.02 kj/mol.
- Substitute all the known values in the above formula to get the number of joules required.
q=n×ΔHq=1.94×6.02q=11.678kJ
- We got the answer in kilojoules. We have to convert the heat into joules.
11.678 kJ = 11,678 J
- Therefore the amount of heat required in joules to melt the ice at 0oC is 11,678 joules.
Note:We have to calculate the number of moles of water from the given data then only we will get the heat required and we also should know the value of enthalpy of fusion for ice. Without knowing these two
Help please!!!
Do you think we always see the same side of the Moon?
Answer:
yess
Explanation:
"The Moon orbits Earth once every 27.3 days and spins on its axis once every 27.3 days. This means that although the Moon is rotating, it always keeps one face toward us. Known as “synchronous rotation,” this is why we only ever see the Moon's nearside from Earth."
Stand next to a partner so that you are side-by-side. Each of you should hold your left arm out to the side and then point with your finger. Describe whether you and your partner are pointing in the same direction.
Answer:
They would be pointing in the same direction
Explanation:
If they were facing each other then it may seem like they are pointing in different directions they would still point the same way.
1.Which one of the following represents the force of gravity?
A.The attraction of the Earth to the Sun.
B.Steve slapping the table
C.Victoria ice skating
D.A basketball rolling across the ground
2.The force that works against motion and tries to slow objects down is called
A.a push or pull
B.friction
C.mass
D.gravity
3.Something that makes objects start moving, stop moving, slow down or change direction.
A.a push or pull
B.friction
C.mass
D.gravity
4.Which of the following surfaces has the LEAST amount of friction?
A.a gravel driveway
B.a dirt road
C.a road covered with ice
D.a road covered with spilled sand
5.The force that pulls objects toward the center of the Earth is called.
A.a push or pull
B.friction
C.mass
D.gravity
please help ang bobo ko
Answer:
For number 1 = A
For number 2 = B
For number 3 = A
For number 4 = C
For number 5 = D
Which is NOT a type of simple machine? *
O W
O Pulley
O Wedge
Wheel and Axel
These are ALL simple machines
Answer:
W is not a type of simple machine
Explanation:
What do active solar heat systems have that passive systems do not have?.
Answer:
Passive solar heating uses building design to utilize sunlight, while active solar heating uses technology.
Explanation:
lol
A ball is tossed upwards into the air with an initial upwards velocity of 3.0m/s. What is the ball's velocity when it returns to the height from which it was tossed?
Neglate air resistance.
So acceleration is unchangedAs acceleration is remaining constant so at the top the velocity is 0.But at the end the velocity again come to 3m/s.a car accelerates from rest (zero speed) up to a speed of 30 m/s in 12 seconds. calculate the acceleration.
Answer:
v=u+at
30=0+a×12
30=12a
a=[tex]\frac{30}{12}[/tex]
a=2.5ms⁻²
Answer:
2.5 m/s^2
Explanation:
There is this thing in Physics called the BIG 4 equations that help us determine one or more of the missing variables. In this case, we know the initial velocity, final velocity, and time. We're asked to find the acceleration.
This equation has all the criteria to find acceleration:
Vf = at + Vi ---> Final Velocity is equal to acceleration times time plus initial velocity
Plugging in the values and using algebra, we can find the acceleration.
30 = 12a + 0
a = 2.5
Transverse waves called___
waves occur during
earthquakes.
Transverse waves called S waves occur during earthquakes.
what are the consequences of being exposed to nuclear waste
Answer:
it could cause skin burns and acute radiation syndrome (“radiation sickness"). It can also result in long-term health effects such as cancer and cardiovascular disease*
*Cardiovascular disease affects the heart or blood vessels. It's usually associated with a build-up of fatty deposits inside the arteries and an increased risk of blood clots.
If i double the distance between two objects, what happens to their gravitational force?.
Answer:
When the distance between the two objects is halved, the gravitational force becomes four times.
Explanation:
How does an insulator stop the flow of an electric current? Question 2 options: insulator keeps the electrons in the insulator from moving very much. Insulators convert electric energy to other forms of energy. Insulators have too many electrons. Insulators have a positive charge so they absorb electrons.
A car speeds up from 10 m/s to 24 m/s. Change in velocity
Answer:
14m/s
Explanation:
subtract initial velocity by final velocity
I need to know the solution and the formula.
Statement:
A non-deformed spring is 15 cm long. When a 2.0 N force is applied to it, its length becomes 19 cm.
To find out:
The spring constant of the spring.
Solution:
Force (F) = 2 NExtension of the spring (x) = (19 - 15) cm= 4 cm= 0.04 m [since we have to find the answer in N/m]Let the spring constant of the spring be k.We know, the formula of spring force, i.e.,F = kxPutting the values in the above formula, we get2 N = k × 0.04 mor, k = 2 N ÷ 0.04 mor, k = 50 N/mAnswer:
The spring constant of this spring is 50 N/m.
Hope you could understand.
If you have any query, feel free to ask.
What is observed when a noble gas is heated and the emitted light shone through a prism?.
Given what we know, we can confirm that when a noble gas is heated and the emitted light is shone through a prism, we can observe the emission spectrum.
What is the emission spectrum?These can be described as lines of different colored lights. These lines will be the observed results after heating the gas and shining its light through a prism. This emission spectrum can provide important information regarding the chemical composition of its source.
Therefore, we can confirm that the emission spectrum, described as lines of varying colors, is what we observe when a noble gas is heated and the emitted light is shone through a prism.
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Efficiency of electrons causes negative charge why?
Answer:
Electron is negatively charged because you don't get work or in simple words charge out of it.
Explanation:
A concrete slab of mass 400 kg accelerates down a concrete slope inclined at 35°. The kinetic between the slab and slope is 0.60. Determine the acceleration of the block.
I got you
Explanation:
normal force = 400 g cos 35
friction force up slope = .6 (400 g) cos 35
weight component down slope = 400 g sin 35
400 a = 400 g sin 35 - .6 (400 g cos 35)
a = g (sin 35 - .6 cos 35) = .082 g
I hope this helps you
The acceleration of the block is 0.082g.
What is force?The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.
Given that:
Mass of the slab: m = 400 kg.
Angle of inclination: θ = 35°.
Coefficient of kinetic friction: μ = 0.60
Hence, the normal force = 400 g cos 35° N.
The friction force acting on the slab= 0.6× (400 g) ×cos 35° N.
The component of weight in the direction of motion= 400 g sin 35° N.
Let the acceleration of the slab = a.
Now from Newton's 2nd law of motion:
Σ F = ma
400 g sin 35° - 0.6 (400 g cos 35°) = 400 a
a = g (sin 35 - .6 cos 35)
= 0.082 g
Hence, the acceleration of the block is 0.082g.
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A hill that has a 15.5% grade is one that rises 15.5 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal
The angle of incline of the hill above the horizontal is 8.81°.
Since the hill has a 15.5% grade is one that rises 15.5 m vertically for every 100.0 m of distance in the horizontal direction.
Tangent of the angle of the incline of the hill,The tangent of the angle of the incline of the hill, Ф is
tanФ = vertical rise/horizontal distance = grade of hill
Now, the vertical rise = 15.5 m and the horizontal distance = 100.0 m
So, substituting the values of the variables into the equation, we have
tanФ = vertical rise/horizontal run
tanФ = 15.5 m/100.0 m
tanФ = 0.155
Angle of incline of the hill
Taking inverse tan of both sides, we have
Ф = tan⁻¹(0.155)
Ф = 8.81°
So, the angle of incline of the hill above the horizontal is 8.81°.
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When you use the front brakes on your bicycle, why does your body want to rotate over the front wheel
Answer:
Because the bike is slowing down at a faster rate than you are.
Explanation:
An object in motion will stay in motion. The bike is slowing down faster than the passenger. The bike will slow the rider down because the rider is hanging on but you will feel the force when the bike is breaking.
Newton's first law of motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
which one is correct ? i'll mark u brainlistt asapp
Why does Mars not have an electric field and why
Answer:
The difference lies in the planets' respective magnetic fields, because while Earth's magnetism comes from within, Mars' does not. Earth's magnetism comes from its core, where molten, electrically conducting iron flows beneath the crust. Its magnetic field is global, meaning it surrounds the entire planet
Explanation:
thanks for question
How long would a simple pendulum need to be to have a period of 1. 0s.
Answer:
0.248 m
Explanation:
If a new ninth planet were discovered in our solar system that orbited the Sun in an opposite direction than the other eight planets, astronomers would most likely assume that ___.
For this ninth planet, astronomers would most likely assume that: it originated in another star system and was gravitationally captured.
What is a solar system?A solar system is a collection of both outer and inner planetary (astronomical) bodies alongside the Moon that usually orbit around the Sun, in slightly elliptical orbits.
The planets in the solar system.Based on astronomical science, there are nine (9) planets in the solar system and these are;
MercuryVenusEarthMarsJupiterUranusNeptunePlutoSaturnAstronomers would most likely assume that a planet that orbited the Sun in an opposite direction in contrast to the other planets, originated in another star system and was gravitationally captured.
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A 3.0 kg block is at rest on a horizontal floor. If you push horizontally on the 3.0 kg block with a force of 12.0 N, it just starts to move.
A. What is the coefficient of static friction?
B. A 7.0 kg block is stacked on top of the 3.0 kg block. What is the magnitude F of the force, acting horizontally on the 3.0 kg block as before, that is required to make the two blocks start to move?
Answer : A ) 0.4
B ) Should be greater than 40N .
A) Here in the first question it's given that a block of mass 3kg is pushed with a force of 12N so it just starts to move. This means the maximum value of static friction ( limiting value) is 12N . We know that ,
[tex]\qquad\qquad\sf\longrightarrow\Large{\boxed{\pink{\sf F_{ms}=\mu_s N}}} [/tex]
Where [tex]\mu_s[/tex] is the coefficient of static friction and N is the normal reaction . Since the block is on horizontal , Normal force is equal to the weight of the block that is mg . So ,[tex]\sf\longrightarrow 12N = \mu_s(mg)\\ [/tex]
[tex]\sf\longrightarrow 12N=\mu_s (3kg)(10m/s^2) \\ [/tex]
[tex]\sf\longrightarrow \mu_s = \dfrac{12N}{30N} \\ [/tex]
[tex]\sf\longrightarrow \underline{\boxed{\bf \mu_{static}= 0.4}} \\ [/tex]
[tex]\rule{200}2[/tex]
B) Now coming to second part of the question which says that a 7kg block is kept on a 3kg block as before . We need to find out the magnitude of force that is required to move the system .
The total mass of the system = 3kg + 7kg = 10kg .Here since it's not mentioned whether the contact surface between the blocks is rough or not ,I am assuming it to be smooth .To make the system move the applied force should be greater than the frictional force , from the previous question the coefficient of static friction was 0.4 .So that ,
[tex]\sf\longrightarrow F_{(applied)}> F_{ms} \\ [/tex]
[tex]\sf\longrightarrow F_{(applied)}> \mu_s mg \\ [/tex]
[tex]\sf\longrightarrow F_{(applied)}> 0.4( 10kg)(10m/s^2) \\ [/tex]
[tex]\sf\longrightarrow \underline{\boxed{\bf F_{(applied)}> 40N }}\\ [/tex]
What happens to some metals when the kinetic energy of their particles is decreased?
Answer:
less heat energy is supplied to the atoms
Explanation:
When we decrease the temperature, less heat energy is supplied to the atoms, and so their average kinetic energy decreases. When they enter a phase transition, such as freezing from a liquid to a solid, the temperature is not decreasing or increasing, and stays constant.
The decrease in kinetic energy of the atoms is an indication that their temperature is decreasing and the material is losing heat energy.
What is kinetic energy of molecules?The average kinetic energy of gas particles is proportional to the absolute temperature of the gas, and all gases at the same temperature have the same average kinetic energy.
When we decrease the temperature, less heat energy is supplied to the atoms, and so their average kinetic energy decreases.
When they enter a phase transition, such as freezing from a liquid to a solid, the temperature is not decreasing or increasing, and stays constant.
Hence the decrease in kinetic energy of the atoms is an indication that their temperature is decreasing and the material is losing heat energy.
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