What is a scientific theory?
Answer:
Scientific theories are explanations of some aspect of the natural world based on repeated observations.
Hope this helps!!!!
Answer:
The way that scientists use the word 'theory' is a little different than how it is commonly used in the lay public," said Jaime Tanner, a professor of biology at Marlboro College. "Most people use the word 'theory' to mean an idea or hunch that someone has, but in science the word 'theory' refers to the way that we interpret facts.
Explanation:
does changing position of charges change the magnitude
Answer:
No, they will not change.
Explanation:
NEED HELP ASAP!!!
If 100 newtons of force are applied over a distance of 50 meters for 5 seconds, how much power is used
2,500 watts
1,000 joules
10 watts
1,000 watts
Answer:
2,500 watts
Explanation:
I got this answer right on a test. I hope it works for you to.
Answer:
2500 wats
Explanation:
HEY can anyone tell me the Atomic Mass of Neon and also what ever the number u get pls round it!!
Answer:
20.1797 u
Explanation:
Answer:
Hey!
Your answer is that the ATOMIC MASS of Neon is 20.18 to 2 decimal places!
Explanation:
The other way is to round it to the next whole number, which is 20...
You can pick between the two as they are both correctly rounded!
The EXACT number is 20.1797.
I HOPE THIS HELPED YOU! :DWhich object has potential energy but not kinetic energy
A. A battery in a pair of headphons
B. A car Slowing down
C. A person Climbing a ladder
D.a person riding an elevator upward
Answer:
A battery in a pair of headphons
Explanation:
Answer: A
Explanation:
The graph below shows the speed of a car as it drives along a racetrack.
a. When does the car have the highest velocity?
Answer:
...
Explanation:
....
1.78 km = __m
Help plz
Answer:
1780
Explanation:
move decimal point to the right 3 times.
Please fast ?????????
Answer:
Explanation:
Kinetic
Researchers interested in studying stress gave 150 high school seniors a very difficult math exam. After the test, the researchers measured stress by examining physiological changes with extensive medical testing that included drawing blood samples. When the test was over, they shared the results with the students, but did not publish individual data. Explain whether or not this study conforms to each of the ethical standards: Informed Consent, Debriefing, Confidentiality, and Protection from harm.
Answer:
Informed Consent- The study didn't conform this ethical standard.
Debriefing- The study conforms this ethical standard.
Confidentiality- The study conforms this ethical standard.
Protection from harm- The study conforms this ethical standard.
Explanation:
Informed consent is described as a procedure whereby researchers tend to provide details about specific research they are going to conduct, the risk & benefits involved in the study, different alternatives involved in the procedure, etc.
Debriefing is described as a process that is being conducted in any of the different psychological research encompassing human participants after specific research is completed. The researcher tends to describe the details of the research to the participants.
Confidentiality is described as one of the different code of ethics followed by health workers or psychologists. While practicing confidentiality, a psychologist tends to promise his or her participants that he or she will keep everything a secret whatever is being discussed or shared between both of them.
Protection from harm determines that the psychologists conducting research follows the ethics in which he or she has to protect all the participants from any kind of harm.
Answer:
I think its A
Explanation:
What is the kinetic energy of a baseball traveling at a 25 mi./s with a mass of 0.56KG
Answer:
453.25 MJ
Explanation:
The formula to find kinetic energy is :
[tex]E_{k} = \frac{1}{2} X m X v^{2}[/tex]
E.k = ?
m = 0.56kg
v = 25mi./s which needs to be converted into metres per second
1mi./s= 1609.34m/s
25 mi./s = 40233.6 m/s.
E.k. = 0.5 × 0.56 × 40233.6²
e.k = 453247919.3J
E.k.= 453.25 MJ
Which of the following forces does NOT act on an object sliding down an incline plane?
A. force of tension
B. force of gravity
C. normal force
D. force of friction
Answer:
d
Explanation:
force of friction.
How to work out Initial volume Boyle’s law
Answer:if i know ill tell u
Explanation:
A ball is projected horizontally from the top of a cliff and free falls to the ground.
Which one of the following statements accurately describes the ball's motion?
PLSSS HELP ITS URGENT ILL RATE YOU BRAINLIEST:) A truck whose bed is 4 m long, 2.2 m wide, and 1.0 m high is delivering sand for a sand-sculpture competition. About how many trips must the truck make to deliver 23 m^3 of sand?
Answer:
one truck load is 2.5*1.5*1 = 3.75m^3
7/3.75 = 1.86 loads,
so 2 trips must be made.
Explanation:
Goal: Use dimensional analysis to solve conversion problems. 1. Observe: In the question, you are asked to convert kilometers to centimeters. To do this, first you will convert kilometers to meters. Drag the 1000 meters/1 kilometer tile down. A. What do you notice? __________________________________________________ B. Because kilometers appear in the numerator of one term and in the denominator of another, they cancel, or disappear. The process of converting units by canceling is called dimensional analysis. How many meters are in 0.828 kilometers? ________________________________ C. A meter is a much shorter unit of measurement than a kilometer. Based on this fact, does your answer to B make sense? ______________________________________
Answer:
A. The kilometers unit is cancelled out and the result shown is 828 meters.
B. 828 meters are found in 0.828 Kilometers
C. Yes
Explanation:
A. When the 1000 meters/1 kilometer tile is dragged down, the kilometers unit is cancelled out and the value 828 meters appears.
This is because the kilometers appear in the numerator of one term and in the denominator of another, they cancel, or disappear. The process of converting units by canceling is called dimensional analysis.
B. 0.828 Kilometers * 1000 meters/1 kilometer = 828 meters
Therefore, there are 828 meters in 0.828 kilometers.
C. A meter is a much shorter unit of measurement than a kilometer. Based on this fact, it does make sense that 0.828 Kilometers which is less than 1 kilometer is equal to 828 meters.
(A) The process of converting units by canceling is called dimensional analysis.
(B) There are 828 meters in 0.828 kilometers.
(C) It does make sense that 0.828 Kilometers which is less than 1 kilometer is equal to 828 meters.
The given problem is based on some basic fundamentals and applications of dimensional analysis. So as per the given problem, each subpart says,
A.
When the 1000 meters/1 kilometer tile is dragged down, the kilometers unit is cancelled out and the value 828 meters appears.
This is because the kilometers appear in the numerator of one term and in the denominator of another, they cancel, or disappear. The process of converting units by canceling is called dimensional analysis.
Thus, we can conclude that the process of converting units by canceling is called dimensional analysis.
B.
Converting the given value of kilometers into the meters as,
0.828 Kilometers * 1000 meters/1 kilometer = 828 meters
Thus, we can conclude that there are 828 meters in 0.828 kilometers.
C.
A meter is a much shorter unit of measurement than a kilometer. Based on this fact, it does make sense that 0.828 Kilometers which is less than 1 kilometer is equal to 828 meters.
Thus, we can conclude that it does make sense that 0.828 Kilometers which is less than 1 kilometer is equal to 828 meters.
Learn more about the dimensional analysis here:
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Use the principle of superposition (Equation 1.3) to predict the electric field at the point 0.5 meters to the right and 1.5 meters above the 5 nC charge. Express your result both in terms of x and y components, and then in terms of total magnitude and direction.
Answer:
Explanation:
The x component of electric field Ex = k Q / R²
= 9 x 10⁹ x 5 x 10⁻⁹ / .5²
= 180 N .
The y component of electric field Ey = k Q / R²
The y component of electric field Ey
= 9 x 10⁹ x 5 x 10⁻⁹ / 1.5²
= 20 N
Total field = [tex]\sqrt{180^2+20^2}[/tex]
= 181.1 N .
Angle with x axis = Tanθ = Ey / Ex = 20 / 180 = .111
= 6.33⁰
Jupiter’s moon, Ganymede takes 7.15 Earth days to orbit Jupiter. Ganymede is measured to be 7.1 X 10-3 AU from Jupiter’s center. A second moon of Jupiter, Callisto, takes 16.69 Earth days to orbit Jupiter. How far away is Callisto from the center of Jupiter?
Answer:
0.0124 AU
Explanation:
Ganymede takes 7.15 Earth days to orbit Jupiter. Ganymede is measured to be 7.1 X 10⁻³ AU from Jupiter’s center.
We need to find how far away is Callisto from the center of Jupiter if a second moon of Jupiter, Callisto, takes 16.69 Earth days to orbit Jupiter. Let it is r₂. Using third law of Kepler.
[tex]T^2\propto r^3[/tex]
i.e.
[tex](\dfrac{T_1}{T_2})^2=(\dfrac{r_1}{r_2})^3\\\\\dfrac{r_1}{r_2}=(\dfrac{T_1}{T_2})^{2/3}\\\\r_2=\dfrac{r_1}{(\dfrac{T_1}{T_2})^{2/3}}\\\\r_2=\dfrac{7.1\times 10^{-3}}{(\dfrac{7.15}{16.69})^{2/3}}\\\\r_2=0.0124\ \text{AU}[/tex]
So, Callisto is 0.0124 AU from the center of the Jupiter.
a motorcycle stunt driver rides his motorcycle off a small ledge that is 8.4m high his initial velocity as he rides off the ledge is 25m/s in the horizontal direction how long does it take before he lands on the ground. answer= 1.3 s
Answer:
1.3s
Explanation:
A container of rocks is brought back from the Moon's surface where the acceleration due to gravity is 162 meters per second if the total mass of the container of rocks is 650 kilograms, what is its weight on
Earth's surface
Answer:
6318 N
Explanation:
From the question given above, the following data were obtained:
Acceleration due to gravity of the moon (gₘ) = 1.62 m/s²
Mass (m) of container = 650 kg
Weight (W) of container on the earth =.?
Next, we shall determine the acceleration due to gravity of the earth. This can be obtained as follow:
Acceleration due to gravity of the moon (gₘ) = 1.62 m/s²
Acceleration due to gravity of the earth (gₑ) =.?
gₘ = 1/6 × gₑ
1.62 = 1/6 × gₑ
1.62 = gₑ /6
Cross multiply
gₑ = 1.62 × 6
gₑ = 9.72 m/s²
Finally, we shall determine the weight of the container on the earth as follow:
Mass (m) of container = 650 kg
Acceleration due to gravity of the earth (gₑ) = 9.72 m/s²
Weight (W) of container on the earth =.?
W = m × gₑ
W = 650 × 9.72
W = 6318 N
Therefore, the weight of the container on earth is 6318 N
any two masses will be
Answer:
Explanation:
What???
What does wave speed only changes based on?
Answer:
waves change based on what they are traveling through
Explanation:
What is special about decomposers? *
a. they are autotrophs that absorb nutrients that have been digested outside their bodies.
b. they are heterotrophs that absorb nutrients that have been digested outside their bodies.
c. they are autotrophs that digest food internally (inside their bodies)
d. they are heterotrophs that digest food internally (inside their bodies)
. Exercises that specifically prepare the muscles for active movements
Answer:
Dynamic Stretching
Explanation:
Dynamic Stretching: Dynamic stretches are controlled movements that prepare your muscles, ligaments and other soft tissues for performance and safety.
Two teams of girls are having a hug of war and neither side is winning. Each of the four girls on the west team is pulling with a force of 250. N. Three of the four girls on the east team are pulling with a force of 260 N each. With what force is the fourth girl on the east pulling.
Answer:
220N
Explanation:
Given that the first time has 4 girls
each girl pull at 250N, therefore the total force
250X4= 1000N
For the second team, the three girls out of the four pulls at 260N each,
let the fourth girl pulls at xN
the total force is 3X260+x
=780+x
we know that the total force on the west must equal the total force on the east
so
1000=780+x
solving for x we have
x=1000-780
x=220N
Therefore the fourth girl on the second team pulls at 220N
An egg is dropped from the top of the band hall. If the band hall is 25 m
tall, determine the time it takes the egg to hit the ground.
Answer:
2.26s
Explanation:
The time it takes for the egg to hit the ground can be calculated using the formula:
S = ut + 1/2at²
Where; S = distance of handball from ground (m)
t = time (s)
a = acceleration due to gravity (9.8m/s²)
u = initial velocity = 0m/s
Inserting our values into the formula, we have:
25 = (0 × t) + 1/2 (9.8 × t²)
25 = 0 + 9.8t²/2
25 = 9.8t²/2
25 × 2 = 9.8t²
50 = 9.8t²
t² = 50/9.8
t² = 5.102
t = √5.102
t = 2.258
t = 2.26s
HEY can anyone tell me the Atomic Mass of Helium and also what ever the number u get pls round it!!
Answer:
Hey!
Your answer is that the ATOMIC MASS of Helium is 4 u ROUNDED to 2 decimal places!
Explanation:
The precise amount is 4.002602 u.
I HOPE THIS HELPED YOU! :DA constant net force acts on an object. Describe the motion of the object
a) constant acceleration
B) constant speed
C) constant velocity
D) increasing acceleration
Answer:
The answer is A if it was right give it the brainiest
Consider this situation: A force is applied to a box to move it
to the right across the kitchen floor. Of the forces listed,
identify which act upon the box.
Answer:
The static "frictional force" and the "kinetic friction" will act on the box.
When A force is applied to a box to move it to the right across the kitchen floor, static friction force comes into play before start moving. When the box starts moving, dynamic friction force comes into play.
What is friction?
The resistance provided by surfaces in touch as they move past one another is known as friction.
To walk without slipping, traction is provided by friction. In most situations, friction is advantageous. They do, however, give a strong amount of opposition to the move.
When A force is applied to a box to move it to the right across the kitchen floor, static friction force comes into play until it starts moving. When the box starts moving, dynamic friction force comes into play.
To find more about friction, refer the link:
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A sample of gold has a mass of 96.5g and a volume of 5.00cm^3. What is the density of gold?
Explanation:
sample of gold has a mass of 96.5 g and a volume of 5.00 cm3. The density of gold is a. 0518 g/cm3.
Taking into account the definition of density, the density of gold is 19.3 [tex]\frac{g}{cm^{3} }[/tex]
But first you must know the definition of density. Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.
In other words, density is the relationship between the weight (mass) of a substance and the volume that the same substance occupies.
The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
[tex]density=\frac{mass}{volume}[/tex]
From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.
In this case, you know that:
mass= 96.5 gvolume= 5 cm³Replacing in the definition of density:
[tex]density=\frac{96.5 g}{5 cm^{3} }[/tex]
Solving:
density= 19.3 [tex]\frac{g}{cm^{3} }[/tex]
In summary, the density of gold is 19.3 [tex]\frac{g}{cm^{3} }[/tex]
Learn more about density:
brainly.com/question/952755?referrer=searchResults brainly.com/question/1462554?referrer=searchResultsWhich two options would increase the electric force between two charged
particles?
O A. Increase the distance between the particles.
B. Increase the charge of one of the particles.
C. Decrease the charge of both particles.
O
D. Decrease the charge of one of the particles,
O E. Decrease the distance between the particles,
The two options would increase the electric force between two charged
particles is
E. decrease the distance between particles.
B. Increase the charge of one of the particles.
What is Electric force?The attractive or repulsive interaction that lies between any two charged objects should be called as the electric force.
When the distance between the particles is decreased and the charge of one particles should be increased so it increased the electric force.
hence, option b and option e are correct.
Learn more about electric force here: https://brainly.com/question/17562167
