Answer:
The participants who were given the coffee
Explanation:
This is the group which the experiment is centered or focused around in order to achieve a result of derive informations regarding their exposure to some things.
Dr. Sampson is studying the effects of caffeine on hunger which means he hypothesizes that people who ingest more caffeine experience less hunger pangs throughout the day. He designs a study where one group of participants is given caffeine throughout the day, and the other group is not allowed to have any caffeine. All this talks about The participants who were given the coffee being the experimental group
Which unit would be most appropriate for measuring the mass of a black bean?
Answer:
milligrams
explanation:
kilograms are too big
Hope this helps :)
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.
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.
https://brainly.com/question/5022534.
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.
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
Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5 resistor,
an 8 resistor, and a 12 resistor, and a plug key, ammeter, all connected in series.
here is your answer hope it helps
Answer:
scjematic diagram of a circuit
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:
https://brainly.com/question/18076437
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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
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:
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!!!!
which of the following can be used to measure mass
Answer:
there are no options
Explanation:
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]
Señale la veracidad (V) o falsedad (F) de las siguientes proposiciones: I. Una partícula está en equilibrio cuando se encuentra en reposo. II. Una partícula se encuentra en equilibrio, el observador no registra fuerza alguna sobre la partícula. III. Un cuerpo que se mueve con rapidez constante se encuentra en equilibrio. FFV VFF FFF VVF
Answer:
(i) V, (ii) F, (iii) F
Explanation:
Se comprueba la veracidad de cada proposición:
(i) Una partícula está en equilibrio cuando se encuentra en reposo.
Respuesta: Según la Primera Ley de Newton, toda partícula está en equilibrio si está en reposo o desplazándose a velocidad constante. Por ende, la proposición es verdadera.
(ii) Una partícula se encuentra en equilibrio, el observador no registra fuerza alguna sobre la partícula.
Respuesta: Según la Primera Ley de Newton, toda partícula está en equilibrio si está en reposo o desplazándose a velocidad constante.
Además, la Segunda Ley de Newton establece que la fuerza neta sobre la partícula como resultado de fuerzas externas es igual a cero. Lo cual quiere decir que una partícula puede estar en equilibrio y estar sometidas a fuerzas externas. En conclusión, la proposición es falsa.
(iii) Un cuerpo que se mueve con rapidez constante se encuentra en equilibrio.
Respuesta: Según la Primera Ley de Newton, toda partícula está en equilibrio si está en reposo o desplazándose a velocidad constante.
La rapidez es la magnitud de la velocidad, para que la velocidad sea constante debe ser constante tanto en magnitud como en dirección. La afirmación no garantiza que la dirección de la partícula sea constante. Por ende, la proposición es falsa.
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:
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
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.
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.
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?
As temperature increases, ________. Group of answer choices the resistance of a conductor remains the same the resistance of a conductor increases the resistance of a conductor decreases the voltage of the conductor decreases
Answer:
resistance of a conductor increases
Explanation:
The resistance of conductors is directly proportional to the temperature of the conductor. This implies that when the temperature of the conductor is increased, the resistance of the conductor increases likewise.
This is applied in the resistance thermometer. Resistance thermometers are useful for accurate temperature measurements at very high or very low temperatures.
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:
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
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
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
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:
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
How is sound produced in our throat
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
please help with these tysm