Answer:
maintaining overall fluid balance regulating and filtering minerals from blood filtering waste materials from food, medications, and toxic substances.
Explanation:
Answer: Nephrons
Explanation: The structural and functional unit of the kidney is known as nephrons. These are microscopic structures found in the kidneys.
A healthy adult has 0.8 to 1.5 million nephrons in the kidney of a adult. Its main function is filtration of the blood.
Blood is filtered and the impurities are collected to excrete out of the body in the form of urine.
10 pts!!!!!! please answer ASAP picture and inscription included
The wavelength of a wave is equal to the distance from one disturbance to
the next and is measured in meters. If the distance between two wave
crests is 2 m, what is the wavelength?
Answer:
2m
Explanation: a crest is a disturbance
Answer:
I think its 4m, but don't quote me. hope I helped
Dust and gas are pulled together by the force known as what?
Answer:
Gravity
Explanation:
In astronomy, dust and gas get pulled together by gravity forming Nebula's, famous nebula's include the Crab Nebula, Orion Nebula and Helix Nebula.
Most of the Nebula's consist of hydrogen.
a 25 ohm resistor in an electric circuit draws a current of 5 amperes a certain amount of charge through the resistor in 36 seconds calculate the voltage
Answer:
V= 125volts
Explanation:
R =25ohms
I = 5 amp
V = ?
t = 36seconds
V = IR
V = 5× 25
V= 125volts
Q = It
Q = 5×36
Q = 180 coulombs
Q is the amount of charge.
At a grocery store, 20 fl oz of brand A vitamin
water is sold for $0.95. What is the unit price of
the vitamin water per ounce, to the nearest cents?
Answer:
0.05 cents per fl oz
Explanation:
0.95 divided by 20
0.0475 to the nearest cent 0.05
how do braces protect you while doing sports
Answer:
they don't, if you get hit in the face then the brackets are gonna rub up against the inside of your mouth then you'll bleed
Explanation:
This diagram shows a baseball’s motion. Which statement is best supported by the diagram?
a
Maximum Gravitational potential energy is at point R.
b
Kinetic energy becomes potential energy between points P and Q.
c
Kinetic energy becomes potential energy between points R and S.
d
Maximum kinetic energy is at point R.
Answer:
A
Explanation:
maximum gravitional potential energy is at point R
On a sky coaster (human pendulum) that reaches 20 meters from it's equilibrium position, a man of 70 kg is able to reach a maximum speed of
Answer:
Explanation:
Using the principle of conservation of energy, the potential energy is converted to kinetic energy, assuming any losses.
Kinetic energy is given by ½mv²
Potential energy is given by mgh
Where m is the mass, v is the velocity, g is acceleration due to gravity and h is the height.
Equating kinetic energy to be equal to potential energy then
½mv²=mgh
V
Making v the subject of the formula
v=√(2gh)
Substituting 9.81 m/s² for g and 20 m for h then
v=√(2*9.81*20)=19.799 m/s
Rounding off, v is approximately 20 m/s
Answer:
19.8 m/s
Explanation:
During the motion of a pemdulum bob, it casually converts kinetic energy to potential energy and vice versa.
A pendulum bob reaches its maximum speed at a position closest to its equilibrium position and has its lowest when it is farthest from the equilibrium position.
The maximum speed of a pendulum bob based on the mass involved and the maximum displacement from the equilibrium position is obtained from
Maximum kinetic energy = Maximum potential energy
Maximum potential energy occurs at the farthest point from equilibrium, that is,
P.E(max) = mgh
Maximum kinetic energy = ½mv²
½mv² = mgh
v = √2gh
g = acceleration due to gravity = 9.8 m/s²
h = farthest height from equilibrium position = 20 m
v = √(2×9.8×20) = 19.8 m/s
Hope this Helps!!!
What term is used to describe the amount of energy it takes for 1 gram of a substance to be raised one degree in temperature?
A.
Specific energy
B.
Specific mass
C.
Specific gravity
D.
Specific heat
Answer:
The answer is specific heat.
Explanation:
The amount of energy for 1 gram of a substance to be raised one degree is called specific heat because it involves energy and temperature going up.
Heat is a form of energy, so it is the most appropriate name.
I hope this helps! :)
The amount of heat required to increase the temperature of 1 gram of a substance by 1 degree Celsius (°C) is known as specific heat. Since water has a higher specific heat than other substances, it requires more energy to raise its temperature. Thus, option D is correct.
What are the characteristics of Specific heat?One gram of a substance's temperature can be raised by one degree Celsius by applying a certain amount of heat, or specific heat.
Calories or joules per gram per Celsius degree are typically used as the units of specific heat. One calorie (or 4.186 joules) per gram per degree Celsius, for instance, is the specific heat of water.
Specific heat is the quantity of energy required to raise a substance's temperature by one degree in order to raise a gram of it.
Therefore, Specific heat term is used to describe the amount of energy it takes for 1 gram of a substance to be raised one degree in temperature.
Learn more about Specific heat here:
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can Somebody Explain Please
Introduction to Newton's law of gravitation
Answer: so basically, Newtons Law states that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Explanation: newtons law simplified in my opinion is a physical law that describes the attraction between two objects with mass.
hope this helps.
Answer:
Explanation:
she rieat
While moving a box 10.0 m across the floor, Sam pushes with a force of 150 N to the right. The force friction acting on the box is 25.0 N to the left. What is the net work done on the box by these 2 forces
Answer:
Explanation:required formula is
W 1=F*S
W1=work done by Sam =?
F=force applied by sam=150N
S=displacement =10m
again
W2=F*S
W2=work done by friction =?
S=displacement =10m
F=friction =25N
W=W1-W2=net work done
please feel free to ask if you have any questions
what is the force when an object exerts 15 pascal pressure on a square surface of side 5 meters
Answer:375N
Explanation:
pressure =15 pascal
Length =5 m
Area=length x length
Area=5 x 5
Area=25 m^2
Force=pressure x area
Force=15 x 25
Force=375N
0
What is 33 C in absolute temperature? hs
Answer:
33 Celsius is 306.15 in absolute temperature
A wave of wavelength 0.3 m travels 900 m in 3.0 s. Calculate its frequency.
Answer: 1000 Hz
Explanation:
You can calculate frequency by dividing velocity by wavelength
Frequency = velocity/wavelength
Find velocity first.
900 m/3 s = 300 m/s
Plug values in to find frequency.
F = (300 m/s)/0.3 m
F = 1000 Hz
Which nanotechnology product would most likely help the
electronics company?
biomaterials
carbon wires
quantum dots
OLEDs
Answer: OLEDs
Explanation:
The nanotechnology uses the surface of the carbon materials to generate the electricity. The evaporation of water on the surface of carbon materials helps in generation of electrical energy due to generation of thermal energy.
OLEDs can be defined as solid-state devices that comprises of organic molecules like carbon that will create electricity by exposing a surface for generation of thermal energy.
State the name of the process in each of the following changes of state:
a) Solid to a liquid
b) Liquid to a solid
c) Gas to a liquid
d) Liquid to a gas
Answer:
A. Melting
B. Freezing
C. Condensing
D. Boiling
Explanation:
A metal rod has a length of 123. cm at 200°C. At what temperature will the length be 92.6 cm if the coefficient of linear expansion of the material in the rod is 2.0 x 10-5 °C-1?
Answer:
[tex]\theta_{2} = 15400^0 C[/tex]
Explanation:
The formula for linear expansivity, [tex]\alpha = \frac{l_{2} - l_{1} }{l_{1} ( \theta_{2} - \theta_{1} )}[/tex]
original length, l₁ = 123 cm = 1.23 m
final length, l₁ = 92.6 cm =0.926 m
original temperature, θ₁ = 200°C
Linear expansivity, α = 2 * 10⁻⁵ °C⁻¹
Putting these values into the formula:
[tex]2 * 10^{-5} = \frac{1.23 - 0.926 }{l_{1} ( \theta_{2} -200 )}\\ \theta_{2} -200 = \frac{0.304}{2 * 10^{-5} } \\\theta_{2} = 15200 + 200\\\theta_{2} = 15400^0 C[/tex]
A charge of 80 coulombs passes through a circuit in 5 seconds. What is the current through the circuit?
Answer:
I = 16amp
Explanation:
Charge coulomb ( Q ) = It
Where I =current in ampere
t = time = 5 seconds
80 = I × 5
I = 80/5
I = 16amp
The current through the circuit will be I = 16amp
A 6.0 cm candle is 30.0 cm from a concave mirror that has a focal length
of 11 cm. What is the distance of the image from the mirror?
7 points
0
.09 cm
17 cm
.06 cm
O
20 cm
Answer:
23 cm from the mirror
Explanation:
Jenny and Fred both play a long note on their trombones. A stationary observer hears the sound increasing and decreasing repeatedly in loudness. Which of these must be true?
A.The sound waves from the two trombones have slightly different frequencies.
B. The sound waves from the two trombones have the same frequency.
C. The sound waves from the two trombones have slightly different amplitudes.
D. The sound waves from the two trombones have the same wavelength.
E. The sound waves from the two trombones have slightly different velocities.
Answer:
A.The sound waves from the two trombones have slightly different frequencies.
Explanation:
This is because, a difference in frequency of waves from two different sources would result in either constructive or destructive interference of the waves. Thereby, causing the observer to hear the sound increasing or decreasing.
Answer:
A.The sound waves from the two trombones have slightly different frequencies.
Which waves can travel through empty space?
A. Light waves
B. Water waves
C. Sound waves
D. Mechanical waves
Answer:
A. light waves
Explanation:
just learned this in science class lol
by space it means in a vacuum. Light waves, or radiation, are the only waves capable of going through a vacuum.
Answer:
A
Explanation:
Which step should you take before you begin a scientific investigation? Print the directions after you complete the experiment. Test out all of the emergency equipment you may need. Clarify any confusing information in the instructions. Purchase the equipment and chemicals you will need.
Answer:
Clarify any confusing information in the instructions.
Purchase the equipment and chemicals you will need.
Explanation:
Steps of a scientific investigation include identifying a research question or problem, forming a hypothesis, gathering evidence, analyzing evidence, deciding whether the evidence supports the hypothesis, drawing conclusions, and communicating the results.
Answer:
C. Clarify any confusing information in the instructions
Explanation:
This is not a multiple choice question, however, all of these are correct. The question above is looking for the BEST step to take before beginning.
Verified as correct on e2020
O rază de lumină cade sub un unghi de incidență i=30⁰ pe o suprafață
plană ce separă două materiale transparente cu indici de refracție n 1 = 1,60
și n 2 = 1,40.
Calculați unghiul de refracție (din mediul cu indicele de refracție mai mic).
Sugestie: sin 30⁰ = ½.
Answer:
Explanation:
The question in english is:
A ray of light falls under an angle of incidence of 30 degrees on a flat surface that separates two transparent materials with indexes of refractions 1.60 and 1.40, respectively.
Calculate the angle of refraction (from the environment with the lower index of refraction)
Solution
According to Snell's Law :
[tex]n_{1}sin(\theta_{1})=n_{2}sin(\theta_{2})[/tex]
Where:
[tex]n_{1}=1.6[/tex] is the first medium index of refraction
[tex]n_{2}=1.4[/tex] is the second medium index of refraction
[tex]\theta_{1}=30\°[/tex] is the angle of the incident ray
[tex]\theta_{2}[/tex] is the angle of the refracted ray
We need to find [tex]\theta_{2}[/tex] from the equation above,
[tex]\theta_{2}=sin^{-1}(\frac{n_{1}}{n_{2}}sin\theta_{1} )[/tex]
[tex]\theta_{2}=sin^{-1}(\frac{1.6}{1.4}sin(30\°)[/tex]
[tex]\theta_{2}=34.84\°[/tex]
Therefore, the angle of refraction is 34.84°Gamma radiation is...
An electromagnetic wave
Safe
A helium nucleus
An electron
Answer:
A. Gamma radiation is an electromagnetic wave.
Explanation:
" Gamma ray is an electromagnetic radiation from a nucleus. It is not safe.
" Nucleus of a helium atom is called Alpha particle.
..
Hope this answer can help you,
Help I need a answer to this
Answer:
1700 Joules
Explanation:
Work=force x distance
Force = 170 kg
Distance= 10 Meters
170 x 10 = 1700 Joules of work
The drawing represents a mountain bike trail. A rider began at Point 1 on the trail and stopped at Point 3. At which point did he have the least potential energy?
Answer:
Point 2.
Explanation:
Potential energy is simply defined as the energy stored in an object due to its position. It is can be represented mathematically by:
P.E = mgh
Where:
P.E is the potential energy.
m is the mass of the object.
g is acceleration due to gravity.
h is the height to which the object is located.
From the above equation, we can thus say that potential energy depends on the height of the object since the mass of the object is always constant i.e as the height of the object increase, the potential energy also increases and as the height of the object decrease, the potential energy also decreases.
Now, considering the diagram in the question given, we can see that point 2 is the lowest height to which the rider is located. At this point i.e point 2, the rider will have the least potential energy.
Answer: Point 2
Explanation:
Indica qué es una propiedad específica de la materia. Además explica por qué son útiles las propiedades específicas de la materia frente a las generales.
Answer:
Check Explanation
Comprobar explicación
Explanation:
English Translation
Indicate what a specific property of matter is. Also explain why the specific properties of matter are useful compared to the general ones.
Solution
The specific properties of matter are properties that describes the intensive properties of the system. They are properties that do not depend on or change with the extent or size of the system. They are usually obtained by dividing the generalised properties or extensive properties by the extent or size of matter to make them independent of size/extent/Mass.
Examples of specific properties include specific heat capacity, specific volume etc. They usually have units of general units/Mass units.
The specific properties of matter are more important than the general ones because
- They help in general comparisons of the properties of different materials. They are used to rank, classify and compare properties of different materials.
- They are used in reference table/data to easily record easily accessible properties of matter. It helps to record standards that are general and independent of sizes/extents/Mass, thereby keeping the reference table/data/chart precise and concise.
- They provide us with values that are easy to memorize and remember, unlike trying to cram the different properties of different masses/sizes of matter.
In Spanish/En español
Las propiedades específicas de la materia son propiedades que describen las propiedades intensivas del sistema. Son propiedades que no dependen ni cambian con la extensión o el tamaño del sistema. Por lo general, se obtienen dividiendo las propiedades generalizadas o las propiedades extensivas por la extensión o el tamaño de la materia para hacerlas independientes del tamaño / extensión / masa.
Los ejemplos de propiedades específicas incluyen capacidad calorífica específica, volumen específico, etc. Usualmente tienen unidades de unidades generales / unidades de masa.
Las propiedades específicas de la materia son más importantes que las generales porque
- Ayudan en las comparaciones generales de las propiedades de diferentes materiales. Se utilizan para clasificar, clasificar y comparar propiedades de diferentes materiales.
- Se utilizan en la tabla / datos de referencia para registrar fácilmente propiedades de materia fácilmente accesibles. Ayuda a registrar estándares que son generales e independientes de tamaños / extensiones / masa, manteniendo así la tabla / datos / tabla de referencia precisa y concisa.
- Nos proporcionan valores que son fáciles de memorizar y recordar, a diferencia de tratar de agrupar las diferentes propiedades de diferentes masas / tamaños de materia.
Hope this Helps!!!
¡¡¡Espero que esto ayude!!!
IS IT right to the left a b c d
Answer:
c ok
Explanation: right?
Answer:
16
Explanation:
Object A has a mass of 10 kg and is moving at a velocity of 2.0
m/s. So Object A's momentum is - kg. m/s.
Answer:20kgm/s
Explanation:
Mass=10kg
Velocity=2m/s
Momentum=mass x velocity
Momentum=10 x 2
Momentum=20
Momentum=20kgm/s
The object with mass m when moving with the velocity, its momentum can be calculated. The momentum of the object A is 20 kg.m/s.
What is momentum?Momentum is the product of mass and velocity of a moving object.
If the momentum is p, the mass of the object is 10 kg and the velocity is 2.0 m/s, then the momentum will be
p = 10 × 2.0
p = 20 kg.m/s
Thus, the momentum of the object A is 20 kg.m/s
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The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
Answer:
Pmax = 67.5 KN
Explanation:
We need to calculate the maximum allowable value of P for both aluminum and steel bars.
FOR STEEL BARS:
Since,
(σallow)st = (Pmax)st/A
where,
(σallow)st = maximum allowable stress of steel bar = 200 MPa = 2 x 10⁸ Pa
A = Cross-sectional area of steel bar = 450 mm² = 0.45 x 10⁻³ m²
(Pmax)st = Maximum allowable force for steel bar = ?
Therefore,
2 x 10⁸ Pa = (Pmax)st/0.45 x 10⁻³ m²
(Pmax)st = (2 x 10⁸ Pa)(0.45 x 10⁻³ m²)
(Pmax)st = 9 x 10⁴ N = 90 KN
FOR Aluminum BARS:
Since,
(σallow)al = (Pmax)al/A
where,
(σallow)al = maximum allowable stress of Al bar = 150 MPa = 1.5 x 10⁸ Pa
A = Cross-sectional area of Aluminum bar = 450 mm² = 0.45 x 10⁻³ m²
(Pmax)al = Maximum allowable force for Aluminum bar = ?
Therefore,
1.5 x 10⁸ Pa = (Pmax)al/0.45 x 10⁻³ m²
(Pmax)al = (1.5 x 10⁸ Pa)(0.45 x 10⁻³ m²)
(Pmax)al = 6.75 x 10⁴ N = 67.5 KN
Since,
(Pmax)al < (Pmax)st
Therefore,
The maximum allowable force will be:
Pmax = (Pmax)al
Pmax = 67.5 KN
The acceleration of gravity means that for each second that passes, falling
objects move 9.8 meters.
A. True
B. False
Answer:
B.
Explanation:
There are many factors that go into the speed that an object drops. For example, aerodynamics, weight, and other things.
