Answer:
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
Explanation:
Distance is a scalar quantity as it only depends upon the magnitude and not the direction. Displacement is a vector quantity as it depends upon both magnitude and direction. ... The distance can be measured along a non-straight path. Displacement can only be measured along a straight path.
Answer:
displacement is a shortest distance between final point and initial point but distance is the total length of path.
Explanation:
have a good day
Ellie conducts an investigation to determine if size or weight affect how fast objects fall. Her investigation includes repeatedly dropping a basketball and a golf ball at the same time. After many trials, she determines that both balls land at the exact same time.
Why would Ellie's investigation be valid?
It is based on evidence.
It uses objects that move.
It proves her predictions are correct.
It includes her opinion.
Answer: The answer is A
Explanation: I have the same exact question as you and i took a quiz with this exact question and it said that was the answer and i also took a quizlet with this question and it also said the answer was A hope this helped :)!
The repetition of the experiment allows to support the results, therefore the correct answer is:
based on experimental evidence
The theory is a set of rules, principles and knowledge that are developed from models and experiments that are carried out repeatedly, finding similar results in any given case.
In this case, Ellie repeated each experiment several times, finding results that lead to the result that the two balls hit the ground at the same time, therefore her conclusions are supported by experimental evidence.
In conclusion the conclusions of the experiment of dropping the balls the correct answer is: it is based on the experimental evidence
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A helicopter flies 25 km north, 5 km east, then 5 km S, then 15 km W. What is the resultant displacement and direction of the helicopter? Solve using graphical or mathematical methods. Be sure to either show work or explain your graphical methods.
Answer:
Explanation:
Plotting the original location of the helicopter before it flies 25 km north, it would be at the origin, (0,0) then after it flies north, the y vertex gains 25 points, so it would be (0,25)
After it flies east, the x coordinate gains 5 points, so it would now be (5,25)
After it flies south, the y coordinate loses or is subtracted by 5 points. so it would now be (5,20)
After flying west, the x coordinate loses 15 points. So the final vertex would be at (-10,20)
East = Right
West = Left
South= Down
North = Up
I used mainly mathematical methods by adding and subtracting the x and y coordinate values, but this could be graphed easily since I gave the coordinates just incase!
Hope this helps!
Answer:
Explanation:
D = Xf - X
D = 15km West - 25km North
D = -10km West
Question 8 of 10
How is a scientific theory developed?
A. An experiment is repeated over and over with the same results.
B. One scientist supports his or her hypothesis with an experiment.
c. A single experiment is carefully performed once.
D. Many different experiments are repeated many times.
SUNIT
Answer:
C
Explanation:
If the theory were to be proved you you need to repeat the experiment over and over again so that way you can prove that it is true wuth the same results.
Answer: D hope this helps!
A picture hanging on the wall does not move what Newton's laws of motion is this?
Answer:
Newton's third law of motion
Josh is riding his skateboard down a ramp he kicks off and starts with a speed of 0.5 m/s after 1.5 seconds Josh reaches the bottom of the ramp where his speed is 6.5 m/s at what rate did josh accelerate
Answer:
4m/s2
Explanation:
The rate of change of an object's velocity with respect to time is defined as acceleration. The rate at which Josh accelerated is 4 m/sec².
What is acceleration?The rate of change of an object's velocity with respect to time is defined as acceleration. Vector quantities are accelerations. The orientation of an object's acceleration is determined by the orientation of its net force.
Acceleration = (Final Velocity - Initial Velocity)/ Time taken
Given that Josh kicks off and starts with a speed of 0.5 m/s after 1.5 seconds. Josh reaches the bottom of the ramp where his speed is 6.5 m/s. Therefore, we can write the given quantities as,
Initial Velocity = 0.5 m/sec
Final Velocity = 6.5 m/sec
Time = 1.5 seconds
Now, the rate at which Josh accelerated can be written as,
Acceleration = (Final Velocity - Initial Velocity)/ Time taken
= (6.5 m/sec - 0.5m/sec)/1.5 seconds
= 6.0 m/sec / 1.5sec
= 4 m/sec²
Hence, the rate at which Josh accelerated is 4 m/sec².
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Which of the following speeds is greatest? (2.54 cm = 1.00 in.)
O 10 km/h
O 10 m/s
O 10 ft/s
O 10 mi/h
O 10 yd/s
Answer:
Hi, There!
O 10 m/s
O 10 yd/s
------------------------------------------------------------------------------------------------------------------
Have a great day!
When converting all the given speeds to km/h and after comparing them, we have that the greatest is option 2: 10 m/s.
To find which of the given speeds is greatest, we need to convert all the units to km/h so we can compare the values.
Option 1. 10 km/hOption 2. 10 m/s to km/h[tex]v = 10 \frac{m}{s}*\frac{1 km}{1000 m}*\frac{3600 s}{1 h} = 36 km/h[/tex]
Option 3. 10 ft/s to km/h[tex]v = 10 \frac{ft}{s}*\frac{1 km}{3280.8 ft}*\frac{3600 s}{1 h} = 11.0 km/h[/tex]
Option 4. 10 mi/h to km/h[tex]v = 10 \frac{mi}{h}*\frac{1 km}{0.6214 mi} = 16.1 km/h[/tex]
Option 5. 10 yd/s to km/h[tex]v = 10 \frac{yd}{s}*\frac{1 km}{1093.6 yd}*\frac{3600 s}{1 h} = 32.9 km/h[/tex]
Therefore, the greatest speed is option 2: 10 m/s.
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Electrical power is commonly measured in watts (W) or in kilowatts (kW). A commercial solar panel generates about 0.10 watts per square inch of surface area. Based on this, how many kilowatts of power could be generated by a residential solar panel array with a surface area of 457 ft2?
The electrical power generated by a residential solar panel array with a surface area of 457ft² is 6580.8 watts.
The commercial solar panel generates about 0.10 W/in². To find the electrical power generated by a residential solar panel with a surface area (S) of 457 ft² we need to convert the unit from ft² to in², as follows:
[tex] S = 457 ft^{2}*\frac{144 in^{2}}{1 ft^{2}} = 65808 in^{2} [/tex]
Then, the electrical power generated is:
[tex] P = \frac{0.10 W}{in^{2}}*65808 in^{2} = 6580.8 W [/tex]
Therefore, the electrical power generated by the residential solar panel is 6580.8 W.
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help me please i dont understand
Some ringtones for mobile phones can only be heard by young people. What is the likely frequency of these ringtones?
a. 250 Hz
b. 5,000 Hz
c. 10,000 Hz
d. 17,000 Hz
Answer:
About 250 Hz
Explanation:
People of All ages without a hearing impairment should be able to hear the 8000hz. People under 50 should be able to hear the 12,000hz and people under 40, the 15,000hz. Under 30s should hear the 16,000hz, and the 17,000hz is receivable for those under 24.
The equation below can be used to find the specific heat capacity of a substance. What is the specific heat capacity if it takes 1000 J of energy to heat 25 g of this substance by 100°C? Give your answer in J/kg°C.
Answer:
0.4j/g
Explanation:
using H = MCQwhere H is heat energy, M is mass of substance, and Q temperature change
1000= 25*C*1001000=25*100*C1000=2500Cdivide both by 25001000/2500=CC = 0.4j/gAnswer:
u837483 hd83v
Explanation:
ueu383hevd8eb2 e eusb2 3udbr easy elements easy when ever ever ekq Asner skate s Jesse issbqks. sis whish
Which calculation is an example of velocity?
A. 10 m/s to the right
B. 10
C. 10 m/s
Answer: C, 10 m/s
Explanation:
A lound sound has large
Answer:
amplitude
Explanation:
A loud sound has large very high amplitude
When an object moves, where does the energy come from?
Answer:
potential energy cover in to kinetic energy
i hope it will work
A car is running at a constant speed of 25m/s when the driver sees a child's sped of 20m a head he applied a break a car is top in 50 minutes calculate the time to stop the car and accelaration
Answer:
Umm..... Sorry can't understand your question, too many grammar mistakez
PLEASE ANSWER!!! WILL GIVE BRAINLIEST!!!!!
What is energy?
anything that has mass and takes up space
the ability to do work
all the "stuff" in the universe
phases: solids, liquids, and gases
Answer:
the ability to do work.
EXPLAINATION: .
in other words "the potential for causing changes" or "energy is the cause of any change" or "a work that a certain force *eg: gravitational* can do.
sorry if this is not the answer that you wanted but I couldn't understand your question that's why I wrote what I understood.
A plastic tube allows a flow of 12.9 cm°/s of
water through it.
How long will it take to fill a 227 cm bottle
with water?
Answer in units of s.
Answer:
It will take [tex]17.5968 s[/tex] to fill a bottle with water.
Explanation:
Total capacity of tube [tex]=227[/tex] cm.
Rate of full up the water in the tube [tex]=12.9 $\mathrm{cm}^{\circ} / \mathrm{s}$[/tex]
Total full up the tube [tex]=[/tex] rate [tex]\times[/tex] time
[tex]T=r \times t[/tex]
[tex]227 \mathrm{~cm}$$=12.9 \mathrm{~cm}^{\circ} / \mathrm{s} \times t[/tex]
[tex]t=\frac{227}{12.9}[/tex]
[tex]=17.5968s[/tex]
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give some sources of potential difference (P.D) that you know.
__________________
One example of a rechargeable source of P.D.
__________________
Give one example of a source of P.D. which is used once and finally thrown away_____________
Why we don’t feel atmospheric pressure?
Answer:We don't feel atmospheric pressure because the pressure in our bodies is almost the same as the atmospheric pressure outside
Explanation:
help please! this is physics !
Answer:
4. The choose b. 0.000355
Ans; 3.55× 10-⁴ = 0.000355
5. The choose C. 80600
Ans; 8.06 ×10⁴= 806×10² = 80600
I hope I helped you^_^
Alguien que sepa de electromecánica porfavor
Order, from smallest to largest, the following objects:
Most asteroids
The Sun
The Milky Way
Earth
A cluster of galaxies
Most moons
Meteorites
Answer:
Meteorites,Asteroids,Most moons,earth,sun,the milky way,cluster of galaxies
Explanation:
Meteorites, Asteroids, Most moons, earth, the sun, the milky way, and a cluster of galaxies.
A solar system is a star and all of its planets, asteroids, comets, and other bodies. It is significantly bigger than a star.
A galaxy, such as our Milky Way Galaxy, is a collection of solar systems orbiting around a central core. Most galaxies have a supermassive black hole at their centers.Galaxies also form clusters which are large-scale structures.The universe is everything. It contains billions of galaxies.A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter. The word galaxy is derived from the Greek galaxies, literally "milky", a reference to the Milky Way.
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The satellite in the diagram has gravitational potential energy because of which of the following? Choose all that apply.
It has mass.
It is moving around Earth.
It has height above Earth's surface.
It is attracted by gravity toward Earth.
This question deals with the concept of Gravitational Potential Energy.
The gravitational potential energy of an object is the energy possessed by the object due to its position in the gravitational field.
The value of gravitational potential energy of an object is given by the following formula:
P.E = mgh
where,
P.E = Gravitational Potential Energy
m = mass of the object
g = acceleration due to gravity
h = height of the object in the gravitational field
According to this formula, the object (satellite) has gravitational potential energy due to the following:
It has mass (m).
It has a height above Earth's surface (h).
It is attracted by gravity toward Earth (g).
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Speed depends on how far something travels and
Question 1:
Answer: I think the answer is C
A house is advertised as having 1560 square feet under roof. What is the area of this house in square meters?
Answer:
1 m = 3.28 ft
1 m^2 = 10.76 ft^2
1560 ft^2 / 10.76 ft^2 / m^2 = 145 m^2
A car starts from rest and accelerates at 5 m/s/s.
a) what is the position of the car after 4 seconds?
b) what is the speed of the car after 4 seconds?
c) how long will it take the car to travel 100 meters?
d) how long will it take the car to reach 30 m/s?
Please find attached photograph for your answer. Hope it helps. Please do comment
I need to know which answer is correct
i just need b isolatedwill mark brainliest
An atom’s location on the periodic table provides information such as…
An atom’s location on the periodic table provides information such as;
1. Atomic number.
2. Number of valence electrons.
3. Atomic weight.
An atom can be defined as the smallest unit which comprises the matter that forms all chemical elements. Thus, atoms are typically the fundamental building blocks of matter and as such determines (defines) the structure of a chemical element.
Generally, atoms are typically made up of three (3) distinct particles and these are;
Protons. Neutrons. Electrons.Periodic table is an organized tabular array of all the chemical elements arranged in order of increasing atomic number (in rows).
Generally, an atom’s location on the periodic table (the group of elements it belongs to) provides information such as;
1. Atomic number.
2. Number of valence electrons.
3. Atomic weight.
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You and your friend each drive 50.0 km.
You travel at 90.0 km/hr. Your friend travels at 105 km/hr.
For how many minutes will your friend be waiting for you at the end of the trip?
Round your answer to the nearest minute.
Answer:
Friend will wait 5 minutes
Answer:
you're Friend will wait 5 minutes
3.
How does the enrollment in physical science compare
with that in chemistry over the years? Do you see any
trends?
There is an greater upward trend in the number of student enrollment in physical science than in chemistry over the years.
From the line graph attached;
For physical science ;
A temporary decline in student enrollment could be observed between 1964 - 1965. Afterwards, from 1965 upward, the Number of student enrollment has been on the increase. Enrollment in 1964 is 60 students and the number of enrollment in 1968 is 70For chemistry,
The number of student enrollment in the subject hasn't been steady as it increases and decreases temporarily over the years. The starting Number of enrollment in 1964 is 55 students and the number of enrollment in 1968 is about 58Learn more : https://brainly.com/question/18052685
