Unit to measure red blood cell is million per cubic millimeter
What is red blood cell ?A red blood cell, also called a hematopoietic cell, hemocyte, is a cell produced through hematopoiesis and found mainly in the blood
Unit to measure red blood cell is million per cubic millimeter
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A statue of a great baseball player weighs 2400 N and has a base that is 4 m x 2 m. What is the pressure the statue exerts on the floor?
Answer:
300N/m²
Explanation:
Pressure is calculated using the formula;
Pressure = Force/Area
Given
Force = 2400N
Area = 4m×2m = 8m²
Substitute the given parameters into the formula as shown;
Pressure = 2400/8
Pressure = 300N/m²
Hence the pressure the statue exerts on the floor is 300N/m²
a pulley is used to lift a 2000 N safe over frosty's head. the safe is lifted 6m in 4s by Rudolph. how much power did Rudolph use?
Answer:
3000W
Explanation:
Given parameter:
Weight of safe = 2000N
Height of lift = 6m
Time = 4s
Unknown:
Power used by Rudolph = ?
Solution:
Power is the rate at which work is being done. It is expressed as:
Power = [tex]\frac{Work done }{Time taken}[/tex]
Work done = Weight x height = 2000 x 6 = 12000J
Power = [tex]\frac{12000}{4}[/tex] = 3000W
When wax is heated, it turns into a liquid. How are the wax molecules affected by this change of state?
The molecules gain energy
The molecules lose energy
The molecules move closer to one another
The space between the molecules increase
The space between the molecules decrease
Answer:
the CORRECT answer is the "molecules gain energy" because with heating comes energy transferring into the wax molecules. and "the space between the molecules increases" because the molicules will want to space apart because of the heat
Explanation:
Answer: the molecules gain energy, The space between the molecule increases
Explanation:
i got the sauce (plato)
A subduction zone is where one plate is pulled under the edge of another and occurs in convergent plate boundaries. Which type of crusts are involved in the subduction zone?
a. continental-continental
b. continental-oceanic
c. oceanic-oceanic
Answer:
b. Continental-oceanic
Explanation:
The Earth's crust has been divided into a series of plates. These plates move at a different rate or speed in different directions.
These plates are divided by the boundary between them which are of three types: convergent, transform and divergent.
The convergent boundaries are the one which moves toward each other and the based on the crust they are of three types: continent-continent, ocean-ocean and ocean-continent.
In ocean-continent boundaries, the oceanic plate is denser compared to the continental plate is lighter as a result of which during the process of subduction the oceanic plate sinks beneath the continental plate towards the mantle and melts.
Thus, Option-B is the correct answer.
what do you understand by the term current state and define its SI unit.........
Answer:
Explanation:
Current refer to the rate at which electric charge flow or run or move in an electric circuit . It is measured in Ampere or coulumb per second.
The SI unit is Ampere and it is represented by A. It is a scalar quantity.
1 Ampere is the current that will produce an attractive force of 2 × 10^-7 Newton per meter of length between two parallel conductors.
Diffraction is useful in which of the following fields?
a. calculus
b. anthropology
c. astronomy
d. astrology
a ball has the speed of 4.0 m/s and a kinetic energy of 16 joules. what is the mass of the ball?
Explanation:
[tex]ke = \frac{1}{2} m {v}^{2} \\ m = \frac{2ke}{ {v}^{2} } \\ = \frac{2 \times 16}{ {4}^{2} } = 2kg[/tex]
9. Does a blackbody radiator emit light waves? Explain.
Answer:
"A blackbody is an object that absorbs all of the radiation that it receives(that is,it does not reflect any light,nor does it allow any light to pass through it and out the other side).The energy that the blackbody absorbs heats it up,and then it will emit its own radiation."
Explanation:
Risk*
help plzzzzzzz i need thissssssssss
Answer:
The final graph
Explanation:
The graph that curves downwards is negative acceleration. While the position decreases the slop increases.
Most metals have...
a. Atoms that are spread out, and low specific heats
b. Atoms that are close, and low specific heats
c. Atoms that are spread out, and high specific heats
d. Atoms that are close, and high specific heats
Tyler and his family drove from Atlanta to Baltimore. They traveled a total of 678 miles over 2 days.
What is the reference point in this scenario?
Atlanta
Baltimore
678 miles
2 days
Answer:
atlanta
Explanation:
just took the test
The reference point in this scenario is Atlanta.
What is reference point of the journey?The can be described as the starting point of the entire journey.
From the given statements the family started the journey from Atlanta and then traveled to Baltimore.
Atlanta is the start point (reference point) while Baltimore is the destination (finishing point).
Thus, the reference point in this scenario is Atlanta.
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The image shows a type of fault.
What stress causes this type of fault to form?
A. Compression
B. Gravity
C. Tension
D. Shearing
Answer:
D. Shearing
Explanation:
D. Shearing
The Answer is: Shearing
explain why smoke particles in air move about faster if the temp of the air is increased??
Answer:
kinetic energy increases with the energy which causes the particles to move faster resulting in increases collision rates and rate of diffusion.
Explanation:
The increase in temperature of the air causes the air molecules to have more kinetic energy, which leads to more frequent and forceful collisions with the smoke particles. This, in turn, causes the smoke particles to move faster through the air.
What is kinetic energy?Kinetic energy is the energy an object possesses due to its motion. Any object that is in motion has kinetic energy, and the amount of kinetic energy it has depends on its mass and velocity.
The formula for calculating kinetic energy is:
KE = 1/2 × m × v²
where KE represents kinetic energy, m represents the mass of the object, and v represents the velocity of the object.
Here in the question,
Smoke particles in the air move around due to collisions with air molecules. When the temperature of the air increases, the average kinetic energy of the air molecules also increases. This means that the air molecules are moving faster and colliding more frequently with the smoke particles.
The smoke particles themselves do not have an increase in kinetic energy, but they do receive more energy from the collisions with the air molecules. This extra energy causes the smoke particles to move faster and more erratically, making them more dispersed throughout the air.
In addition, when air is heated, it becomes less dense. This means that there are fewer air molecules in a given volume of air. As a result, the smoke particles have more space to move around and collide with air molecules, which further contributes to their increased speed and movement.
Therefore, increasing the temperature of the air increases the speed and frequency of collisions between the air molecules and smoke particles, leading to the smoke particles moving faster and more widely dispersed throughout the air.
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A piece of aluminum and a piece of cotton are rubbed together. The piece of cotton is brought very close to the top of the metal electroscope and the electroscope is permanently charged by induction. What charge does the electroscope have?
Answer:
najsijsnakjenbwjwjjnbbwjwjejje
the ratio of the rise to the run of a line on a graph (steeper line = faster speed)
Between ball B and ball C, ball ____ has LESS potential energy because ___
a: c;its mass is greater
b: b;its mass is smaller
c: c; its mass is smaller
d: b;its mass is greater
Answer: b
Explanation:
Ec= (1/2)m × v^2
By the formula, you can see that the bigger the mass, the bigger the Cinetic Energy.
b: b; its mass is smaller
Between ball B and ball C, ball B has LESS potential energy because its mass is smaller.
A potential energy, stored energy that depends upon the relative position of various parts of a system. A spring has more potential energy when it is compressed or stretched.
Potential energy is given by formula.
[tex]P.E= m*g*h[/tex]
Since, P.E is directly proportional to mass. Thus, the ball having smaller mass will have the less P.E.
Thus, option b is correct.
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a catcher "gives" with the ball when he catches a 0.196 kg baseball moving at 31 m/s. if he moves his glove a distance of 5.32 cm, what is the average force acting on his hand?
Answer:
3540.5N
Explanation:
Step one:
given data
mass m= 0.196kg
speed v= 31m/s
distance r= 5.32cm = 0.0532m
Step two
The expression relating force, mass, velocity and distance is
F= mv^2/r
substitute we have
F=0.196*31^2/0.0532
F=0.196*961/0.0532
F=188.356/0.0532
F=3540.5N
Showing results for a 4 olm and 8 ohm resistor are connected in series. The current through the 4 olm resistor is 2 amps. What is the current through the 8 olm resister?
Plzzzz help 20 points
Answer:
Let R1= resistance of 4ohms
R2= resistance of 8ohms
Equivalent resistance R will be
R=R1 + R2
=> 4+8=12ohms
The current through the two resistors will be the same since they are connected in series. Notwithstanding, the voltage will drop to appreciate the change.
Explanation:
The value of current from the 8-ohm resistor is the same as in the 4-ohm resistor which is equal to the 2 Amp.
What is resistance?Resistance is a type of opposition force due to which the flow of current is reduced in the material or wire. Resistance is the enemy of the flow of current.
When two resistors are connected to the series in that condition the value of current is the same in both the resistors.
While the value of resistance is different in both the different.
Hence the value of current from the 8-ohm resistor is the same as in the 4-ohm resistor which is equal to the 2 Amp.
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Why is a protective apron or lab coat important to use when working with acids?
Acids conduct electricity and contact could cause a shock.
Acids react with lipids and can cause damage to skin tissue.
Acids break down fabrics and can cause burns if the acids are strong.
Acids have a slippery feel and could result in a fall.
Answer:
Acids break down fabrics and can cause burns if the acids are strong.
Explanation:
When working with acids, it is advisable for a scientist for wear a protective apron or lab coat because acids break down fabrics and can cause burns.
Acids are chemical substances that produces excess hydroxonium ions in solutions.
Due to their unique properties they are highly corrosive and are used to remove rusts from any surface. We they come in contact with the human body, they can cause severe burns especially if they are very strong acid. If an apron is worn, then the body will be shielded.Answer:
C. Acids break down fabrics and can cause burns if the acids are strong.
Explanation:
i did the quiz on edg
what does a steep slope line mean? in science
Answer:
Simply put, slope refers to the steepness of a line. The larger the slope, the steeper the line. Slope is often referred to as 'rise over run' because it is calculated by the change in the vertical (rise) divided by the change in the horizontal (run). ... For example, a high value of slope means a very steep line.
how much power does it take to lift 30 kg 10n high in 5sec
Answer:
the answer is 60 w. i hope this helps
Who invented scuba?
1. Benjamin Franklin
2. Mathew Maury
3. Robert Falcon Scot
4. Cousteau and Gagnon
Answer:
2. Mathew Maury
Explanation:
2. Mathew Maury
4. Cousteau and Gagnon
Explanation:
they made the first successful scuba in 1942
Visible light is the _______ that our eyes can see.
Answer:
Spectrum because it could respond to a specific color based upon how you humans typically perceive Lights of the wavelength
Answer:
spectrum
Explanation:
All of the following processes are the ones that lead directly to the formation of sedimentary rock EXCEPT-
deposition of rock fragments.
O
freezing of water in cracks in rock.
o
melting of rock deep underground.
movement of wind that carries earth material.
Answer:
melting of rock deep underground.
Explanation:
The melting of rocks deep underground does not produce sedimentary rocks. Most igneous rocks are produced by this process.
When molten rocks underground called magma is solidified in the subsurface, it results into the formation of igneous bodies.
Sedimentary rocks forms by the accumulation of sediments. Inside the basin where the sediments are deposited, they are compacted, cemented and lithified. Chemical and physical weathering of rocks produces sediments.If the only force acting on an object is friction during a given physical process, which of the following
assumptions must be made in regard to the object's kinetic energy?
Answer:
The kinetic energy decreases.
Explanation:
Friction is defined as a opposite force to motion. If friction is the only force acting on an objects, its kinetic energy decreases.
It is so because due to resistive force or friction, kinetic energy is converted to heat energy and that reduces the total kinetic energy in the system.
Hence, the correct answer is "The kinetic energy decreases."
The assumptions must be made base in the object’s kinetic energy in a situation whereby frictional force is the only force acting on an object is A:The kinetic energy decreases.
Frictional force can be regarded as opposing force that is formed between two surfaces which have their movement in the same direction or opposite directions. Friction always brings about reduction in motion of a body which in turn bring a decrease to it's kinetic energy, because it us an energy of motion.Therefore, option A is correct.
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How does the antireflective coating applied to the protective glass on a solar cell maximize the energy absorbed by the solar cell?
A. It helps the glass transmit the energy
B. It helps the glass reflect the energy that hits it
C. It stops the top semiconductor layer from absorbing too much energy
D. It stops the bottom semiconductor layer from absorbing too much energy
Answer:
A
Explanation:
The antireflective coating applied to the protective glass on a solar cell maximize the energy absorbed by the solar cell as it helps the glass transmit the energy. The correct option is A.
The antireflective coating added to the protective glass of a solar cell is intended to reduce light reflection from the glass's surface.
More light may flow through the glass and reach the solar cell underneath it by decreasing reflections. This permits the solar cell to absorb more energy from the sun, increasing its efficiency in converting light into electricity.
The antireflective coating guarantees that a larger proportion of incident light is passed through the glass by decreasing reflection, allowing the solar cell to gather and use more energy.
Thus, the correct option is A.
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Using the information given, find the number of Electrons of the unknown element: 6 PROTONS, 6 NEUTRONS, 12 ATOMIC MASS
Answer:
the answer is 24 you are correct
Explanation:
plzz help.me with both questions
Explanation:
Primary cell
1. They are non-rechargeable.
2. The energy density of primary cells is more.
3. The internal resistance of primary cells is more.
4. Example : Zinc-Carbon cell.
Secondary cells
1. They are rechargeable cells.
2. The energy density of secondary cells is less.
3. The internal resistance of secondary cells is less.
4. Example : Car batteries
Current :
The flow of electric charge per unit time is called electric current. It can be given by the formula as follows :
[tex]I=\dfrac{q}{t}[/tex]
The SI unit of electric current is Ampere.
1 Ampere is defined as the current that flows with the electric charge of one Coulomb per second (C/s).
What is the net force EF?
Answer:
Physics Net Force
Explanation:
Physics Net Force
The net force is the combined force of all individual forces acting on an object. Newton's First Law can be seen to be the special case in the Second Law when F, the net force, is zero. When that happens, the acceleration a must also be zero.
Hope this helped you!!
You may have noticed that there was a big difference in the results of
the two hollow pipe experiments, but very little difference in the solid chunk experiments.
Why do you think this was the case?
ANSWER QUICK PLS!
Answer:
For conduction you don't need position. For convection you do.
Explanation:
you just needed to look it up LOL <3