Answer:
Greater than
Explanation:
Distance is the length of the path traveled. Displacement is the difference between the final position and initial position.
Speed = distance / time
Velocity = displacement / time
Since you return to your starting point, your displacement is 0 m, so your average velocity is 0 m/s. Therefore, your average speed is greater than your average velocity.
Speed ls a function of distance and time, while velocity is a function of displacement and time. Since the rider returned to his starting point, then the magnitude of the average speed is greater than the magnitude of the average velocity
Average speed = [tex]\frac{distance}{time} [/tex] Average velocity = [tex]\frac{displacement}{time} [/tex]The total distance traveled will be sum of the 'to' and 'fro' distance.
The total displacement will be 0 (Final position - Initial position) ; since the rider returned to his starting position.
This means the average velocity will be 0 while the average speed will have a value greater than 0.
Therefore, the average speed will be greater.
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Asking why and how about various things in life is a way to develop which life skill?
Answer:
Learning skills
Explanation:
Remember, life skills refer to essential mental and physical abilities needed by a person to successfully face challenges of everyday life.
Therefore, an individual who inquires why and how about the various things in life is developing his learning skill, thereby also increasing his critical thinking abilities.
The "Tragedy of the Commons" describes the conflict between a. Developing and developed nations. b. Individuals and society. c. Farmers and industrialized society. d. Canada and Mexico.
if a bicyclist, with initial velocity of zero, steadily gain speed until reaching a final velocity of 26m/s, how far away did she travel during the race (in the same amount of time?
Answer:
34.46mExplanation:
Using one of the equation of motion to solve the question. According to the equation v² =u²+2as where;
v is the final velocity of the bicyclist = 26m/s
u is the initial velocity of the bicyclist = 0m/s
a is the acceleration due to gravity = 9.81m/s
s is the distance covered during travel
Substitute the given parameters into the formula above to get the distance traveled
26² = 0² + 2(9.81)s
676 = 19.62s
Divide both sides by 19.62
676/19.62 = 19.62s/19.62
s = 34.46m
The distance traveled by the bicyclist during the race is 34.46m
El profesor de Pedro mencionó en su clase que la distancia promedio de la Tierra a la Luna es de 384 000 000 metros. Ayuda a Pedro a escribir este número en notación científica
Answer:
384 000 000 en notación científica es 3.84*10⁸
Explanation:
La notación científica es una forma de representar números para simplificar la forma en que se escriben. 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.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 384 000 000 en notación científica, se realizan los siguientes pasos:
Se mueve la coma decimal hacia la izquierda tantos espacios hasta llegar a la derecha del primer dígito. En este caso la coma se encuentra al final del número.Se escribe entonces este número, que será el coeficiente a en la expresión a*10ⁿ. En este caso es el valor 3.84, donde el punto representa la coma decimal.Se escribe la base 10 con el exponente igual a la cantidad de espacios que se mueve la coma. Este es un número positivo porque la coma se desplaza a la izquierda. Entoces, como la coma decimal se mueve 8 lugares, n=8Entonces, 384 000 000 en notación científica es 3.84*10⁸
A water holding tank measures 85 m long, 55 m wide, and 9 m deep. Traces of mercury have been found in the tank, with a concen- tration of 65 mg/L.
What is the total mass of mercury in the tank?
Answer in units of kg.
Answer:
Mass = 2734.875 kg
Explanation:
Given that A water holding tank measures 85 m long, 55 m wide, and 9 m deep.
The volume = 85 × 55 × 9 =
= 42075 m^3
Traces of mercury have been found in the tank, with a concen- tration of 65 mg/L.
1 m^3 = 1000 L
Convert cubic meters to litres.
42075 × 1000 = 42075000 L
From definition of density,
Density = mass ÷ volume.
Substitute the given density and the calculated density into the formula
65 = mass ÷ 42075000
Cross multiply
Mass = 65 × 42075000
Mass = 2734875000 mg
Convert mg to kg
To do that, you will divide the answer by 1000000
2734875000 ÷ 1000000
= 2734.875 kg
How is sound produced in our throat
An object of mass 2 kg starts from rest and is allowed to slide down a
frictionless incline so that its height changes by 20 m. How fast is the object moving at the bottom of the incline?
a. 10m/s
b. 20m/s
c. 30m/s
d. 40m/s
Answer: B
Explanation:
Given that an object of mass 2 kg starts from rest and is allowed to slide down a frictionless incline so that its height changes by 20 m.
The parameters given from the question are:
Mass M = 2kg
Height h = 20m
Let g = 9.8m/s^2
At the bottom of the incline plane, the object will experience maximum kinetic energy.
From conservative of energy, maximum K.K.E = maximum P.E
Maximum P.E = mgh
Maximum P.E = 2 × 9.8 × 20 = 392 J
But
K.E = 1/2mv^2
Substitute the values of energy and mass into the formula
392 = 1/2 × 2 × V^2
V^2 = 392
V = sqrt( 392 )
V = 19.8 m/s
V = 20 m/s approximately
PLEASE HELP ! What postulate would justify the following statement? If D is between A and B, then Segment AD plus segment DB equals segment AB.. A. Angle Addition Postulate B. Intersecting Lines Postulate C. Points Postulate D. Segment Addition Postulate
Answer:
D. Segment Addition Postulate
Explanation:
I got it correct on the quiz.
which was an idea use to distribute the theory of plate tectonics
Answer:
continental drift
Explanation:
Wegener proposed that the continents plowed through crust of ocean basins, which would explain why the outlines of many coastlines look like they fit together like a puzzle
Part 3: List your favorite and least favorite scientific disciplines (e.G., biology, astronomy, physics) below. Identify each discipline, provide a definition of each discipline, and then cite the resource you consulted for each definition. Favorite Scientific Discipline: Definition:
Answer:
See explanation
Explanation:
Favourite scientific discipline; Chemistry
Definition: Chemistry is the study of the composition, properties and uses of matter as well as the principles governing the changes that matter undergoes.
Source: New School Chemistry by Osei Yaw Ababio (2013)
Least Favourite Scientific Discipline: Botany
Definition: Botany is the study of plants, it includes the study of the structure and properties of plants, as well as the biochemical processes that go on in plants. It also involves the study of plant classification, plant diseases and interactions of plants with their environment.
Source: Encyclopedia Britiannica.
What are some questions engineers should ask when researching a problem?
Who will this help?
How long will it take to get it right?
What a materials can be used to solve the problem?
How much will the project cost?
Answer:
is this a check all that apply or a single answer?
please help with these tysm
Which unit would be most appropriate for measuring the mass of a black bean?
Answer:
milligrams
explanation:
kilograms are too big
Hope this helps :)
At a certain time a particle had a speed of 17 m/s in the positive x direction, and 3.0 s later its speed was 28 m/s in the opposite direction. What is the average acceleration of the particle during this 3.0 s interval
Answer:
i wanna say 11 forgive me if wrong.
Explanation:
When neither plate is dense enough to sink into the asthenosphere, the result is a _____ plate boundary.
Answer: Convergent collision
When neither plate is dense enough to sink into the asthenosphere, the result is a Convergent (Colliding) plate boundary
In asthenosphere, when plates move towards each other and collide, it is called Convergent Colliding.
When Oceanic lithosphere moves away from the rising thermal currents at divergent plate boundaries it get crust and cools at the boundaries..
As Oceanic lithosphere cools, the density of the rigid plate increases.
At some plate margins, Oceanic cooler plate became more dense and hot s compared to asthenosphere plate, the plate is sinking beneath the adjacent plate and back into the hotter, deeper regions. This is called subduction. Subduction occurs along convergent plate margins.
For more details, follow the link given below.
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Convert 2.5 feet into inches. (1 ft = 12 in)
Answer: 30 inches
Explanation: 12x2.5=30
Answer:
Explanation:
1 feet = 12 inch
2.5 feet = 2.5 × 12
= 30 inch
Hope this helps
plz mark as brainliest!!!!
4. What do you think about science?
Answer:
science can be either very simple or very complex. there are many different subjects and units in science, and there are many different types of science.
Answer:
I like science because the topics are very interesting and some of the projects you do are really fun and intriguing
Hope this helps! （づ￣3￣）づ╭❤～
Explanation:
which of the following can be used to measure mass
Answer:
there are no options
Explanation:
The potential energy of a pear is 5.0 joules. The pear is 4 m high. What is the mass of the apple?
Answer:
rrteertewtagtewyewtyewtewy
Explanation:
PLS HELP THIS IS DUE IN 10 MINUTES Describe at least 3 uses of ultraviolet radiation and discuss whether the benefits outwheigh the risk.
Answer:
Three uses that ultraviolet radiation is used for is for cleaning tools like for doctors or dentists, suntanning, and photo therapy. This can be okay and worth the risk if used carefully and with protection. Otherwise, it can cause cancer or blindness
Explanation:
Rain drops fall on a tile surface at a density of 4638 drops/ft2. There are 17 tiles/ft2. How many drops fall on each tile? Answer in units of drops/tile
Answer: 272.82 drop/tile
Explanation:
Given that the Rain drops fall on a tile surface at a density of 4638 drops/ft2. There are 17 tiles/ft2. How many drops fall on each tile?
Tiles/ft^2 × drop/tiles = drop/ft^2
Tiles will cancel out. Leaving the answer to be drop/ ft^2
Substitutes all the magnitude of the above units.
17 × drop/tiles = 4638
Make drop/tiles the subject of formula
Drop/tiles = 4638/17
Drop/tiles = 272.82
Therefore, 272.82 drop/tile drops fall on each tile?
If Julie applies 2.67 Newtons of force down onto the table, how
many pounds of force is she applying? Llbs (Write your
answer two significant figures)
Answer:
0.6 pound.
Explanation:
From the question given above:
Julie applies 2.67 Newton (N) of force down onto the table.
Hence, we can obtain the force in pound applied by Julie on the table as follow:
Recall:
1 N = 0.225 pound
Therefore,
2.67 N = 2.67 × 0.225
2.67 N = 0.6 pound
Therefore, the force in pound applied by Julie on the table is 0.6 pound
How long would it take a hawk to stop if he was flying at 9m/s and decelerated at 3m/s2?
Answer:
3 seconds
Explanation:
From the question above,
we can apply the first equation of motion which is,
a = (v-u)/t.................... Equation 1
Where a = acceleration. v = final velocity, u = initial velocity, t = time.
make t the subject of the equation
t = (v-u)/a.............. Equation 2
Given: a = -3 m/s²(decelerating), u = 9 m/s, v = 0 m/s (to stop)
substitute these values into equation 2
t = (0-9)/-3
t = -9/-3
t = 3 seconds
Elements in which family are most likely to have properties associated with
metals, such as malleability and good conductivity?
Answer: As with all metals, the alkali metals are malleable, ductile, and are good conductors of heat and electricity. The alkali metals are softer than most other metals.
Alkaline earth metals
The alkaline earth elements are metallic elements found in the second group of the periodic table
Explanation:
Cutting a log of wood into pieces is a____________________ change
Answer:
physical change
Explanation:
Physical change are changes affecting the form of a chemical substance, but not its chemical composition. Examples of physical change: melting, freezing, shape, size, color...
Answer:
It is physical change
Explanation
Because it didn't change the substances
After the wood is being cut into pieces it cant still be called wood
A 2-column table with 4 rows. The first column titled mineral has entries diamond, cubic zirconia, common glass, ruby. The second column titled density and grams per cubic centimeter has entries 3.50 to 3.55, 5.50 to 5.90, 2.40 to 2.80, 3.90 to 4.10. If a rock sample has a mass of 1.17 g and a volume of 0.33 cm3, what type of rock is it? If a rock sample has a mass of 2.7 g and a volume of 1.1 cm3, what type of rock is it? If a rock sample has a mass of 11.2 g and a volume of 1.9 cm3, what type of rock is it?
Explanation:
1. diamond
2.common glass
3. cubic zirconia
Answer:
1.diamond
2. common glass
3. cubic zirconia
Explanation:
just did it!!
Distinguish between an energy transfer and an energy transformation in the following situation: A heat lamp warms a baby zebra.
Answer: Thermal energy: transfer from the air to the lamp to the zebra.
Energy transformation: The lamp converts electric energy to thermal energy.
Imagine a zoo warming a baby zebra with a heat bulb. The heat lamp's circuitry converts electrical energy into thermal energy. Additionally, energy is exchanged as an object moves from one to another. Energy does not need to change form when it is transported.
What is energy transfer and an energy transformation?The passage of energy from one place to another is known as energy transfer.
When energy transforms, it goes from one type to another. Although energy can be changed or moved, the overall amount always stays the same.
There are three main ways that energy can be transferred: as heat, as sound, and as light.
The light bulb is a prime example of energy being transmitted as light. Alarm clocks are examples of energy transfer by sound, and heating a stove is an example of energy transfer through heat.
Therefore, when it is transmitted, energy doesn't need to change its form.
Learn more about energy transfer here:
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calculate the pressure if a force of 2n is applied on an area of 2mm²
Answer:
P=1 MPa
Explanation:
P=F/A
P=2N/2mm^2
P=1N/mm^2
P=1 MPa
[tex]\\ \sf\longmapsto Pressure=\dfrac{Force}{Area}[/tex]
[tex]\\ \sf\longmapsto Pressure=\dfrac{2}{0.000002}[/tex]
[tex]\\ \sf\longmapsto Pressure=1000000Pa[/tex]
3. What is the potential energy of a 8 Newton book sitting on a shelf that is 12 meters high?
Answer:
P = 96 J
Explanation:
Given that,
Weight of the book, W = mg = 8 N
It is placed at a height of 12 m
We need to find the potential energy of the book. The potential energy of an object is given by the formula as follows :
E = mgh
mg = Weight
[tex]E=8\ N\times 12\ m\\E=96\ J[/tex]
So, the potential energy of the book is 96 J.
Which of the following is true of the Celsius scale? a. 212 degrees is the boiling point of water. b. 0 degrees is absolute zero. c. 0 degrees is the freezing point of water. d. 32 degrees is the freezing point of water. Please select the best answer from the choices provided A B C D
Answer:
it is C on NCCA Quiz
Explanation:
Answer:
The correct answer is C., or ¨0 degrees is the freezing point of water¨.