Answer:
El valor en notación científica es 3.98*10⁻⁶.
Explanation:
La notación científica es una manera rápida de representar un número utilizando potencias de base diez. Esta notación se utiliza para poder expresar muy fácilmente números muy grandes o muy pequeños.
Los números se escriben como un producto:
a*10ⁿ
donde:
a es un número real mayor o igual que 1 y menor que 10, al cual se le agrega un punto decimal después de la primera cifra si se trata de un número que no es entero. n es un número entero, que recibe el nombre de exponente u orden de magnitud. Representa el número de veces que se desplaza la coma. Siempre es un número entero, positivo si se desplaza a la izquierda, negativo si se desplaza a la derecha.Para escribir el número 0.000003979 en notación científica, se realizan los siguientes pasos:
Se mueve la coma decimal hacia la derecha tantos espacios hasta llegar a la derecha del primer dígito. Se escribe entonces este número, que será el coeficiente a en la expresión del producto anterior. Se escribe la base 10 con el exponente igual a la cantidad de espacios que se mueve la coma. Este es un número negativo porque la coma se desplaza a la derecha.Entonces, en este caso:
a= 3,979 ≅ 3,98n= -6Entonces, el valor en notación científica es 3.98*10⁻⁶.
what are the two types of covalent bonds ? provide a description of each
Answer: Polar and Nonpolar
Polar molecules occur when there is an electronegativity difference between the bonded atoms.
Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out
The deeper you dive into the ocean and the higher the altitude you gain when climbing a mountain result in what?
Answer:
A change in pressure
Explanation:
This is because, the deeper you dive, the height of water above you creates a pressure on you. So, as the depth increases, the height of water increases, thus its weight on you, thus its pressure on you also.
Also, as you gain altitude as you climb a mountain, the height of air above you decreases. This thereby decreases the weight of air above you thus, decreasing the pressure of air on you.
So, in both cases, there is a change in pressure as height or depth changes. An increase in height results in decreased pressure and an increases in depth results in increased pressure.
Which characteristic is defined as the distance traveled by a wave crest in a given time?
frequency
wavelength
amplitude
speed
Answer:
Amplitude
The amplitude ( ) of a wave is the distance from the centre line (or the still position) to the top of a crest or to the bottom of a trough .
Explanation:
Hope it helps
The distance traveled by a wave crest in a given time is defined as: D. speed.
What is a wave?A wave can be defined as a disturbance in a medium that progressively transport energy from a source to another location, especially without the transportation of matter.
The characteristics of sound wave.Some examples of the characteristics of a wave include the following:
FrequencyWavelengthAmplitudeSpeedIn Science, speed refers to the distance traveled by a wave crest in a given time.
Read more on wave here: https://brainly.com/question/19250621
What is the kinetic energy of a go kart with a mass of 150 kilograms and a speed of 20 m/s?
Answer:
Kinetic Energy = 1/2mv^2
Kinetic Energy = 1/2(150 kg)(20 m/s)^2
Kinetic Energy = 75 kg(400 m/s)
Kinetic Energy = 30000 J
Let me know if this helps!
Explain how a rock with vesicular texture could form. Give two examples of rocks with this texture.
Answer:
Vesicular texture refers to volcanic rocks that contain holes called vesicles that were formed by gas bubbles in lava. This igneous rock is called scoria. The vesicles form from escaping gas bubbles in cooling lava.
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (40pts)
Answer:
Newton's second law: F=ma.
Force = mass x acceleration
This basically means, that the more massive something is, and the faster it is going, the more force the object will have.
So, the factors that can be used to find acceleration are:
F=ma
a=F/m
So, we see that the correct answer is A, mass and force.
Let me know if this helps!
you push a shopping cart with 2 packs of water bottles. you stop the cart and add two more packs. you push the cart again. does the cart behave differently? explain using science terms.
Answer:
Yes
Explanation:
The cart will definitely behave differently because more weight is added to it.
In order to successfully push a cart, the applied force must exceed the force of the weight of the cart along with its constituents and the frictional force between the tyres and the floor.
When more weights are added (the 2 packs of water bottles), it means that more force would be needed to overcome the opposing forces to the movement of the cart in order to successfully push the cart again.
I have to finish this by 6 am today please somebody help me
What advice would you give her to improve her diagram? Choose all that
apply.
Answer:
A, C
Explanation:
In order for a box to be moving at constant velocity, that means acceleration must be 0(as the speed isn't increasing). Thus, since F = ma, and a is 0, the net force must also be 0. The diagram must be completely balanced in every direction, which is why the two horizontal arrows must be equal values.
C is also true because gravity is a stronger force here than the applied force. We can calculate the force due to gravity with Fgravity = mg. Thus, we get the force as a result of gravity = 9.8*50, which is around 500N and much larger than the applied force of 200N.
PLEASE HELP! ASAP
During which process is radiation given off by isotopes with unstable atomic
nuclei?
A. Nuclear fusion
B. Chemical decay
C. Radioactive decay
D. Nuclear fission
Answer:
C. Radioactive decay
Explanation:
Answer:
Radioactive Decay
Explanation:
Ap3x
When a tennis player practices by
hitting a ball against a wall, which of Newton's
laws of motion is the player making use of?
Answer:
2nd bscause there is a reaction
A student pulls down with a force of 40 N on a rope that winds around a pulley of radius 5 cm. find the torque?
Answer:
2N
Explanation:
Given that a student pulls down with a force of 40 N on a rope that winds around a pulley of radius 5 cm. find the torque?
Solution
Using the formula
Torque = Force × radius
I.e
Torque = F r
Where
F = 40N
r = 5 cm = 5/100 = 0.05m
Substitute all the parameters into the formula
Torque = 40 × 0.05
Torque = 2 N
Therefore, the torque on this scenario is 2 N
How much kinetic energy do we get out of cars compared to the amount of chemical energy that we put into them?
Answer:
The potential energy stored in molecules can be converted to chemical energy, heat, and electromagnetic radiation, such as sunlight, all have kinetic energy.
PLS HELP DUE IN 20 MINS!!! True or false: You can make a pulse travel at a faster speed without changing the shape or size of the pulse.
Answer:
False
Explanation:
A Larger pulse with more energy means that the wave has a large amplitude. As in the given question, both the waves are travelling in the same medium, hence their speeds will remain the same and therefore the larger pulse will not overtake the smaller pulse. Remember the amplitude of a wave does not affect the speed at which the wave travels.
Can someone help me PLEASEEE ASAP
Answer:
12 meters and 2 n
Explanation:
16 - u = 6 (8.0 + 11)
When both momentum and kinetic energy are conserved,
the collision is an __________
collision.
Answer:
Elastic collision
Explanation:
An elastic collision is a collision in which there is no net loss in kinetic energy in the system as a result of the collision. Both momentum and kinetic energy are conserved quantities in elastic collisions. Supposed two similar trolleys are traveling toward each other with equal speed.
In which of these can convection not occur?
gases
solids
liquids
fluids
Answer:
B: Solids
Explanation:
I have notes from EDG and I looked it up on the internet
I hope this helps
In the solids, convection can not occur. Convection can only be done in the fluids.
What is convection?Under the effect of gravity, hotter, less dense material rises while colder, denser stuff sinks, resulting in heat transfer"Convection is the ultimate mode of energy transmission to the surface"
There are three modes of the heat transfer;
1. Conduction
2. Convection
3. Radiation
Convection occurs in the fluid which is liquid and gases. Convection never occurs in the solid.
Hence option B is correct.
To learn more about the convection refer to the link;
https://brainly.com/question/16635311
NEED HELP ASAP!!!!!!!!!!
Answer:
*The same balloon put into the freezer would be smaller and shriveled.
* The volume decreases as the temperature decreases.
* using a hypothetical starting volume of 2 liters in the balloon at 42 degrees Celsius, we can use the equation V1/T1 =V2/T2
V2= 1.54 liters which proves when temperature decreases , volume decreases as well.
Explanation:
The volume increases as the temperature increases, and volume decreases as the temperature decreases.
using a hypothetical starting volume of 2 liters in the balloon at 42 degrees Celsius, we can use the equation V1/T1 =V2/T2
Change Celsius to kelvin by adding 273.
2 liters/ 315 K = V2/243 K
Cross multiply and then divide by 315 to find V2
2 liters x 243 K / 315 K = V2
The Kelvin cancels itself out.
486 liters /315=V2
V2= 1.54 liters.
This proves that when the temperature decreases , so does the volume.
which fuel is considered as a clean fuel for vehicles?
Answer:
Biodiesel or biogas vehicles are seen as an element on the path towards energy independence from fossil fuels and relief from unstable oil prices. ... CIVITAS cities test for example the use of biodiesel, biogas, compressed natural gas (CNG) and hybrid vehicles.
Explanation:
Help!! I don’t know what to do
Answer:
Ok so I think i got it, Left is negative and so is down so if its facing down or left its negative force but if its right and up its positive so
A is neg
B is pos
C is Pos
D is Neg
E is Neg
f is Neg
Explanation:
hope that helps and have a great day
if it helps think about giving a good rating and branniest answer
Find the magnitude of the sum of a 10m displacement and a 5 -m displacement when the angle between them is 45
Answer:
The magnitude of the resultant of the two vectors is 7.37 m.
Explanation:
let the first vector = a = 10 m
let the second vector = b = 5 m
angle between the two vectors, θ = 45⁰
The magnitude of the resultant of the two vectors is calculated as;
[tex]R^2 = a^2 + b^2 -2ab \times cos(\theta)\\\\R^2 = 10^2 + 5^2 - [2\times 10 \times 5 \times cos(45)]\\\\R^2 = 125 - [100 \times 0.7071]\\\\R^2 = 125 -70.71\\\\R^2 = 54.29 \\\\R= \sqrt{54.29} \\\\R = 7.37 \ m[/tex]
Therefore, the magnitude of the resultant of the two vectors is 7.37 m.
If a car has a mass of 200 kilograms and produces a force of 500 N, how fast will the car accelerate?
100 m/s2
2.5 m/s2
0.25 m/s2
25 m/s2
Answer:
B
Explanation:
F = ma
500N = 200 × a
200a. = 500N
a. =. 500N/200
a. =. 2.5m/s²
PLEASE GIVE BRAINLIEST.
Answer:
B
Explanation:
F = ma
500N = 200 × a
200a. = 500N
a. =. 500N/200
a. =. 2.5m/s²
Hope this helps
What does ADA apply to?
Why did Kenyatta want to distance himself from the Mau Mau? Check all that apply.
They had no desire for independence.
The British were determined to crush the rebellion.
They were criminals and made achieving independence more difficult.
They were led by his political rivals.
They were members of the Kikuyu.
Answer:
The British were determined to crush the rebellion.
They were criminals and made achieving independence more difficult.
Explanation:
Mau-mau were rebellions and wanted to push out British and other Europeans out of Kenya. Mau mau were also the members of the Kikuyu and were making independence more difficult, due to their rebellion attitude. They were a secret society of Kikuyu.
2) The British were determined to crush the rebellion.
3) They were criminals and made achieving independence more difficult.
After British victory in World War II, Kenyatta received a request to return to Kenya in September 1946, sailing back that month. He decided not to bring Edna—who was pregnant with a second child —with him, aware that if they joined him in Kenya their lives would be made very difficult by the colony's racial laws. On his arrival in Mombasa, Kenyatta was greeted by his first wife, Grace Wahu and their children. He built a bungalow at Gatundu, near to where he was born, and began farming his 32-acre estate.
(a) The British were determined to crush the rebellion.
(b) They were criminals and made achieving independence more difficult.
What is the desire of Kenyatta?Mau-mau were rebellions and wanted to push out British and other Europeans out of Kenya. Mau mau were also the members of the Kikuyu and were making independence more difficult, due to their rebellion attitude. They were a secret society of Kikuyu.
2) The British were determined to crush the rebellion.
3) They were criminals and made achieving independence more difficult.
After British victory in World War II, Kenyatta received a request to return to Kenya in September 1946, sailing back that month. He decided not to bring Edna—who was pregnant with a second child —with him, aware that if they joined him in Kenya their lives would be made very difficult by the colony's racial laws.
On his arrival in Mombasa, Kenyatta was greeted by his first wife, Grace Wahu and their children. He built a bungalow at Gatun, near to where he was born, and began farming his 32-acre estate.
Thus the British were determined to crush the rebellion.They were criminals and made achieving independence more difficult.
To know more about Kenyatta follow
https://brainly.com/question/459070
If the Earth's sideways velocity could be suddenly stopped to zero, how would Earth
move?
O It would fall directly into the sun
It would continue to orbit as before
O It would fly off into space
O More information is needed to answer this question
Answer:If the Earth stopped spinning suddenly, the atmosphere would still be in motion with the Earth's original 1100 mile per hour rotation speed at the equator. All of the land masses would be scoured clean of anything not attached to bedrock.
Explanation:
Describe the relationship between the materials and amount of thermal energy transfer?
Answer:If you mean how much heat it can transfer as a thermal mass - in order to move heat from one place to another:
Typically the relationships are given by specific heat capacity (at different temperatures) and latent heats, plus the end-point temperatures to determine which of these conversion factors are relevant.
If time comes into it, you are looking at including shape and thermal conductivity at the minimum, so you really would need to be more specific
Explanation:
A block of mass m is attached to ideal spring of constant k. When the spring is neither stretched nor compressed, block is at the
equilibrium position (x-0).
Assume the force between the mass and the spring obeys Hooke's Law: Fs-kx, where x is the displacement and Fs is the
restoring force. The restoring force is always directed toward the equilibrium position. In this example of vibrational motion, the
restoring force illustrates Newton's
A. first law of motion
B. 2nd law of motion
C. 3rd law of motion
D. law of gravitational attraction
Answer: Newton’s Third Law of Motion
Explanation:
USATestPrep❤️
How does quantum theory explain the emission spectra of atoms
A. Electrons slowly gain energy in a continuous fashion
B. The movement of an electron between energy levels occurs gradually a small amount of energy are absorbed
C. Each motion of an electron between energy levels is associated with a single, specific amount of energy
D. Electrons absorb the energy they need to jump to a higher energy level from any light source above a minimum energy
Answer:
C
Explanation:
Each motion of an electron between energy levels is associated with a single, specific amount of energy
You step off of a ledge and land 0.5 seconds later. How high was the ledge?
1.25m
hope this is what you needed
formula for work done
Answer:
Work = Force × Distance
-----------------------------------
hope this helps :)