Answer:
561
Explanation: it would most definitely go down as a number because it isn't the same
earth has a mass of 5,970,000,000,000,000,000,000,000 kg. How would scientists express this number in scientific notation.
Taking into account the definition of Scientific notation, the correct representation of 5,970,000,000,000,000,000,000,000 kg in scientific notation is 5.97×10²⁴ kg.
Scientific notationScientific notation is a quick way to represent a number using powers of base 10. This notation is used to be able to express very large or very small numbers very easily.
The numbers are written as a product:
a×10ⁿwhere:
a is a real number greater than or equal to 1 and less than 10, to which a decimal point is added after the first digit if it is a non-integer number.n = a whole number, which is called an exponent or an order of magnitude. Represents the number of times the point decimal is shifted. It is always an integer, positive if it is shifted to the left, negative if it is shifted to the right.Scientific notation of 5,970,000,000,000,000,000,000,000 kg.In this case, to write the number 5,970,000,000,000,000,000,000,000 kg in scientific notation, the following steps are performed:
The decimal point is moved to the left as many spaces until it reaches the right of the first digit. This number will be the value of a in the previous expression. Then a = 5.970,000,000,000,000,000,000,000 The base 10 is written with the exponent equal to the number of spaces that the decimal point moves. This is a positive number because the decimal point is shifted to the left, and it will have a value of n = 24.So, the correct representation of 5,970,000,000,000,000,000,000,000 kg in scientific notation is 5.97×10²⁴ kg.
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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
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
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
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
a fast car goes from 0 m per second to 40 meters per second in 2 seconds. what is the acceleration?
Answer:
20m per sec
Explanation:
40÷ 2 = 20 which is your acceleration per sec
Answer:
20 [tex]m/s^2[/tex]
Explanation:
[tex](40m/s)/2s = 20m/s^2[/tex]
A wagon with an initial velocity of 2 m/s and a mass of 60 kg, gets a push with 150 joules of force. Apply your scientific knowledge and understanding of work-energy theorem to calculate the wagon’s final velocity.
Answer:
Given,
initial velocity (u) = 2m/s
Mass (m) = 60kg
work (w) = 150j
final velocity (v) = ?
first of all, we have to find it's force
we know that,
w = f.d
or, f = w/d
or, f = 150j/2m
◇ f = 75N
Again, we have to find a
we know that,
f = m.a
or, a = f/m
or, a = 75N/60kg
◇ a = 1.25m/s^2
Now,
v = u+a.t
or, v = 2+ 1.25×1
◇ v = 3.25m/s
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 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.The volume of a ball was measured at 500. 0 cm3, and its mass was measured to be 404. 2 g. What would be the most accurate calculation of density for the ball? Round to the nearest ten thousandths. G/cm3.
The density of the given ball is 0.808. Density is an intrinsic property of an object.
How to calculate density?The density of a ball can be calculated by diving its mass by its volume. It can written as,
[tex]\rho = \dfrac mV[/tex]
Where,
[tex]\rho[/tex] - density
[tex]m[/tex] - mass = 404.2 g
[tex]V[/tex] - volume = 500.0 cm³
Put the values in the formula,
[tex]\rho = \dfrac{404.2}{ 500.0}\\\\\rho = 0.8084 \rm \ g/m^3[/tex]
Therefore, the density of the given ball is 0.808.
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The formation of the solar system from a huge cloud of dust and gases is called the.
how much energy is stored in the capacitor when it is aa fully charged
Answer:
0.5*10uF * 16*16 =0.0128
Explanation:
I have no explanation just like my soul.
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 one is correct ? i'll mark u brainlistt asapp
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:
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.
How many electrons should be in an atom’s valence shell (with the exception of hydrogen and helium) to become stable? 2 4 6 8.
Answer:
8
Explanation:
octet rule: Atoms lose, gain, or share electrons in order to have a full valence shell of eight electrons. Hydrogen is an exception because it can hold a maximum of two electrons in its valence level.
Answer:
the answer is 8
Explanation:
got 100%
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.
if an object with a velocity of 50m/s has the same momentum as that of a 10 kg Mass moving with a velocity of 20 m/s the mass of the object is
Answer:
4 kg
Explanation:
momentum = mass x velocity
10 x 20 = 200
200 / 50 = 4
A car with a mass of 1. 2 × 103 kilograms starts from rest and attains a speed of 20 meters/second in 5 seconds. What net force acted on the car to cause that acceleration? A. 3. 0 × 102 newtons B. 6. 0 × 102 newtons C. 1. 2 × 103 newtons D. 4. 8 × 103 newtons E. 1. 2 × 104 newtons.
Answer:
The formula for force according to Newton's second law of motion is F=ma or force for an object to move is equal to mass times acceleration.
Acceleration or average acceleration defined as change in velocity per time.
F=ma
F=1.2x10³kg*(20m/s)(1/5s)=4.8x10³ Newtons
Explanation:
fthat's not the answer then i'm sorry
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.
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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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 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 ASAP !!
A +2.0 C and a +2.0 C charge exert 0.10 N of force on each other. How much would a +2.0 C and a +4.0 C charge exert, if they were the same distance apart?
This question involves the concept of Colomb's Law and electrostatic force.
The electrostatic force will be "0.2 N".
COLOMB'S LAW:According to Colomb's Law, every charge exerts an electrostatic force on the other charge, which is directly proportional to the product of the magnitudes of both the charges and inversely proportional to the square of the distance between them.
[tex]F=\frac{kq_1q_2}{r^2}[/tex]
where,
F = electrostatic force k = Colomb's constant = 9 x 10⁹ N.m²/C²q₁ = magnitude of first chargeq₂ = magnitude of second charger = distance between chargesIn case of +2 C charges:
q₁ = q₂ = 2 Cr = ?F = 0.1 NTherefore,
[tex]0.1\ N = \frac{(9\ x\ 10^9\ N.m^2/C^2)(2\ C)(2\ C)}{r^2}\\\\r^2=\frac{(9\ x\ 10^9\ N.m^2/C^2)(2\ C)(2\ C)}{0.1\ N}\\\\r^2=3.6\ x\ 10^{11}\ m^2[/tex]
Now, for the second case:
F = ?q₁ = 2 Cq₂ = 4 Cr² = 3.6 x 10¹¹ m²Therefore,
[tex]F=\frac{(9\ x\ 10^9\ N.m^2/C^2)(2\ C)(4\ C)}{3.6\ x\ 10^{11}\ m^2}[/tex]
F = 0.2 N
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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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How long would a simple pendulum need to be to have a period of 1. 0s.
Answer:
0.248 m
Explanation:
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."
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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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.
