Answers
Answer:
Planetary Model of the Hydrogen Atom
Anne Marie Helmenstine, Ph. D. The Bohr Model has an atom consisting of a small, positively charged nucleus orbited by negatively charged electrons. Here's a closer look at the Bohr Model, which is sometimes called the Rutherford-Bohr Model.
Explanation:
Answer:
planetary model
Explanation:
Niels Bohr proposed the Bohr Model of the Atom in 1915. ... The Bohr Model is a planetary model in which the negatively charged electrons orbit a small, positively charged nucleus similar to the planets orbiting the sun (except that the orbits are not planar).
Related Questions
An space probe built on Earth has a mass of 750 kg. Calculate the weight of the space probe on Earth.
Answers
Answer:
7357.5N
Explanation:
Weight is the force used to pull a mass of object towards the centre of the Earth. The force is 9.81 N/kg.
so, Weight = mass × 9.81
the weight of the space probe should be: 750 × 9.81 = 7357.5 N
Answer:
7350N
Explanation:
Data
m-750kg
g-9.8
W=mg
=750 x 9.8
=7350N
a car travels at a speed of 50 m/s for 13 seconds. what is the distance that the car travels?
Answers
d = s x t
= 50m/s x 13 s
= 650 m
The answer is 650m. Let me know if I got wrong
Light is produced by which fundamental force?
strong nuclear
electromagnetic
weak nuclear
gravitational
Answers
Answer:
ans: Electromagnetic
Answer:
B on edg.
Explanation:
10 N force is acting on the body of mass 5kg which is at rest. The velocity
gained by the body in 5 seconds is
Answers
= 4m/s^2
Explanation:
Change in velocity is
20-0/5 = 4
A tennis ball with a speed of 11.5 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 5.842 m/s. If the ball is in contact with the wall for 0.0129 s, what is the average acceleration of the ball while it is in contact with the wall? Take "toward the wall" to be the positive direction. Answer in units of m/s 2
Answers
Answer:
1344.34 m/s
Explanation:
From the question given above, the following data were obtained:
Initial velocity (u) = 11.5 m/s
Rebound velocity i.e final velocity (v) = 5.842 m/s
Time (t) = 0.0129 s
Acceleration (a) =.?
The acceleration of the ball while it is in contact with the wall can be obtained as follow:
a = (v + u) / t
a = (5.842 + 11.5) / 0.0129
a = 17.342 / 0.0129
a = 1344.34 m/s
Therefore, the average acceleration of the ball while it is in contact with the wall is 1344.34 m/s
why are force and velocity different?
Answers
Answer: If you apply force to an object the velocity changes. But it doesn't work the other way around apply velocity and the force (no!) Velocity does not change on an object. A force pushes or pulls on an object, but velocity is simply something an object has I hope this makes sense to you. Hope this helps :)
Explanation:
2.a car accepting to the right along the high way.
balanced or unbalanced
explain your answer
Answers
Answer:
balance
Explanation:
because is high way if the speed is too high it will balanceWhy does an object slow down when going uphill
Please explain properly
Answers
Answer:
The change in speed on slopes is due to gravity. When going downhill, objects will accelerate (go faster), and when going uphill they will decelerate (slow down). On a flat surface, assuming that there is little friction, they will then maintain a constant speed.
Mark me as BRAINLIEST if this answer helped you!
Protons are found only in the atomic nucleus.
TRUE
FALSE
Answers
Answer:
true
Explanation:
Protons and neutrons are found in the nucleus
Determine the average speed of an object that travels 200 miles in 4 hours.
Answers
Answer:
The average speed is 50 miles per hour
Explanation:
Speed is equals to distance divided by time
Then substitute your variables into the equation
Hope this helps
please mark as brainliest
A car accelerates uniformly from rest to a speed of 6.6 m/s in 6.5 s. Find the acceleration the car presents during this time?
Answers
Answer:
1.02 m/s²
Explanation:
The following data were obtained from the question:
Initial velocity (u) = 0 m/s
Final velocity (v) = 6.6 m/s
Time (t) = 6.5 s
Acceleration (a) =.?
Acceleration can simply be defined as the change of velocity with time. Mathematically, it can be expressed as:
a = (v – u) / t
Where:
a is the acceleration.
v is the final velocity.
u is the initial velocity.
t is the time.
With the above formula, we can obtain the acceleration of the car as follow:
Initial velocity (u) = 0 m/s
Final velocity (v) = 6.6 m/s
Time (t) = 6.5 s
Acceleration (a) =.?
a = (v – u) / t
a = (6.6 – 0) / 6.5
a = 6.6 / 6.5
a = 1.02 m/s²
Therefore, the acceleration of the car is 1.02 m/s²
In order to convert yards to meters, multiply the yards by what number (round to the thousandth place)
Answers
what is the speed of a cheetah that travels 112.0 m in 4.0 s?
Answers
Answer:
I don't understand
How are the frequencies of the color (visible light) spectrum similar to the Electromagnetic spectrum?
Answers
Answer:
[tex]this \: is \: due \: to \: both \: spectrum \: having \\ \: the \: same \: or \: almost \: the \: same \: wave \: speed.[/tex]
2. Which of the following will have no effect on the reaction time of a person driving an
automobile?
age
of the driver
b) Distractions in the environment
c) The speed of the automobile
d) Talking on a cell phone while driving
a) The
Answers
Trying to help my brother but i dont remember question 8. Pls help, thank you
Answers
Answer:
I can't read it if you zoom in its still blurry
Explanation:
read the question to me and I'll try to answer it thx
PLSSSSSSSS ASAP!!!!!!
If the distance and time of an object are given, and I need to find speed, I will *
1.add the distance and time
2.divide the distance and time
3.multiply the distance and time
Answers
Answer:
2. divide the distance and time
speed=distance÷time
How do you find the distance a object has traveled
Answers
Answer: Got this from a web search... Change the answer up a bit
Explanation:
The distance travelled is the path taken by a body to get from an initial point to an end point in a given period of time, at a certain velocity. If the velocity is constant: Distance = time * velocity. d = v*t.
Answer:
I researched and found it to be TIME * VELOCITY ( d= v*t)
Explanation:
When I use * I just mean multiply. So its time 'multiplied by velocity' in order to get 'distance'
To change from one unit to another in the metric system multiply or divide by multiples of what number?
A. 2
B. 5
C. 10
D. 15
Answers
Answer:
10
Explanation:
Answer:
answer-10 change from one unit to another in the metric system, multiply or divide by multiples of what number?
2
5
10
15
Explanation:
5. Identify each of the following as element, compound, homogeneous mixture, or heterogeneous mixture. Explain your reasoning for each. a. milk b. iron nail c. glass nad been used to called cellulose nit chemical had evap plastic film on the Initially, Benedictus shatter-resistant gl manufacturers but interested. During sold it for use in ga Soon after the war, began using his gla d. sugar W e. bottled spring water f. distilled water g. air h. alloy bicycle frame i. propane j. baking soda
Answers
Answer:
hope this could help
Explanation:
hope I could helpp
determine the accelerations that result when a 45 N net force is applied to 3kg object
Answers
Answer:
acceleration is 18
Explanation:
45N/3kg=18
Answer:
18
Explanation:
The planet's hawks and block their near each other in the door again system the dworkin's have very advanced technology and a dork and scientist want to increase the pull of gravity between the 2 planets which proposals with the scientists make to accomplish this goal check all that aply
Answers
Answer: A,B, and E
Explanation: Just checked I got them right:)
A student is able to run 5 meters in a time of 2 seconds. What is the average speed of this student in m/s?
Answers
Answer:
2.5
Explanation:
You have to find the unit rate, so 5 divided by 2 is 2.5.
19,792,000,000 in scientific notation will have how many significant figures
Answers
Answer:
= 1.9792 × 10^10
Significant Figures= 5
Explanation:
Look at the attachment below
Hope this helps (:
Identify the reaction type shown and describe the clues that were used to identify it.
Fe2O3 + 2SiO2 → Fe2Si2O7
Answers
Answer:
This chemical equation represents a synthesis reaction. This identification is based on the fact that the reactant chemical compounds combine to form a single chemical substance that is different from the initial chemical substance.
Explanation:
Thermal energy is added to water. Which of the following describes the new state of matter?
A- An exothermic process has caused the phase change.
B- Kinetic energy of particles has decreased.
C- Bonds have been broken that hold particles in place.
D- Particles are attracted to each other and form bonds.
Answers
Answer:
Bonds have been broken that held particles in place
Explanation:
Boiling took place with use of thermal energy(heat energy), this will make particles to move faster and apart from each other bcos temperature is increased. Increase in temperature causes increase in kinetic energy
The helium that fills a balloon is an example of which state of matter? (1 point)
a
Solid
b
Liquid
c
Gas
d
Plasma
Answers
You have about 10 quarts of blood in your body. At REST your heart pumps about 5 quarts each minutes. That is half of your blood volume per minute. During exercise it can pump 40 quarts per minute. How many times does all of your blood complete the cycle around your body during exercise?
Answers
Answer:
8 times
Explanation:
Given that You have about 10 quarts of blood in your body. At REST your heart pumps about 5 quarts each minutes.
That means the heart will pump 10 quarts in 2 minutes.
That is half of your blood volume per minute.
If during exercise it can pump 40 quarts per minute, that is, 80 quarts in 2 minutes.
To know how many times does all of your blood complete the cycle around your body during exercise, you must divide 80 quarts by 10 quarts. That is,
80 / 10 = 8
Therefore, your blood complete the cycle around your body 8 times during the exercise.
((help please))
why might a CD be a more reliable way to copy and distribute a sound recording than a vinyl record
Answers
Answer:
Is either b or d
Explanation:
A CD be a more reliable way to copy and distribute a sound recording than a vinyl record because a CD is easier to copy exactly over and over again.
What are CDs and vinyl records?CDs are digital music storage devices, which means the music is binary data encoded. It uses a 2-channel, 16-bit, 44.1 kHz configuration as the norm for CDs. A laser reads the data, and after it has been decoded, audio is played back.
A sensitive needle known as a stylus is used to read the physical record of the music that is imprinted on the vinyl disc because vinyl is an analogue storage medium. The 12-inch 33-rpm LP, 7-inch 33-rpm EP, and 7-inch 45-rpm single make up the typical vinyl album.
The diameter and playback speed are what determine a vinyl disc's storage capacity (larger discs and slower playback means more capacity). The stereo channels are divided among the groove's two sides.
Hence, option (D) is correct.
Learn more about vinyl record here:
https://brainly.com/question/29776554
#SPJ5
All of the matter present at the beginning of a chemical reaction will still be present at the end of a chemical reaction, although possibly in a different form or substance. This is because of the...
A. Law of conversation of energy
B. Law Of Universal Gravitation
C. Law Of Conversation Of Mass
D. Ohms Law
Answers
Answer:
C. Law Of Conservation Of Mass
Explanation:
In this scenario, this would occur due and is explained by the Law of Conservation of Mass. This law basically states that the mass that exists during and after a chemical reaction must remain the same, assuming that the reaction is taking place in a closed environment where no loss of mass is occurring. This means that if the reaction is in a closed environment the mass should not change whatsoever even if it is not in the same form or substance as it was before the reaction occurred.