Answer:
Explanation:
Laminar Flow is a very important topic discussed in physics in the subject of fluid dynamics. Basically, it explains how fluid particles behave at lower velocities. In such cases and when the viscosity of the fluid is low, the fluid particles flow smoothly in perfectly perpendicular layers that do not collide or cross each other. Unlike turbulent flow, which is the opposite. An example of Laminar flow can be seen when you open up a water hose with little pressure, the water simply flows out of the hose and looks very clear and smooth.
You cannot classify matter based on chemical properties. true or false?
Answer:
ture i think
Explanation:
It is false that one cannot classify matter based on chemical properties.
What is a matter?Matter is the scientific term for any type of material. Matter is defined as anything with mass that occupies space.
Matter requires at least one subatomic particle, though most matter is made up of atoms. A pure substance is sometimes referred to as matter.
Solids, liquids, and gases are the three forms or phases of matter. A substance is defined as matter that is homogeneous and has identical parts.
Substances are classified as either elements or compounds. Elements are pure substances that cannot be chemically decomposed into simpler substances.
Chemically, matter can be classified as pure substance elements and compounds, mixture, or impure substance.
Thus, the given statement is false.
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Which is not a typical property of an acid?
A They react with alkalis producing water.
B They react with all metals producing hydrogen.
C They react with carbonates producing carbon dioxide.
D They turn litmus paper red.
Answer:
B They react with all metals producing hydrogen.
Two objects collide. One of the objects deforms upon collision. What type of collision is this?
Select one:
A: Elastic collision, because energy is used to defom the object.
B: Inelastic collision, because energy is conserved.
C: Inelastic collision, because kinetic energy was lost when the object was deformed.
D: Elastic collision, because momentum is conserved.
Answer:
D Elastic collision because momentum is conserved
Explanation:
this is the answer may i be marked brainliest?
How can you make two objects with different masses move the same distance
Answer:
apply more energy to the object with more mass
Explanation:
please help I got no time!!
Answer:
42a. Ammeter 2 = 0.20 A
42b. Ammeter 3 = 0.20 A
42c. The current will remain the same i.e unchanged.
43. Equivalent resistance is 11780 Ω
46a. 11 V
46b. 7.5 V
46c. 18.5 V
47. 1.70 A
Explanation:
42a. Determination of ammeter 2
Ammeter 1 = 0.20 A
Ammeter 2 =?
Since the resistors are in series connection, the same current will pass through them. Thus, ammeter 2 will read 0.20 A.
Ammeter 2 = ammeter 1 = 0.20 A
42b. Determination of ammeter 3
Ammeter 1 = 0.20 A
Ammeter 3 =?
Since the resistors are in series connection, the same current will pass through them. Thus, ammeter 3 will read 0.20 A.
Ammeter 3 = ammeter 1 = 0.20 A
42c. Since the resistors are in series connection, the same current will pass through them. Therefore, the current will remain the same.
43. Determination of the equivalent resistance.
We'll begin by converting 1.1 KΩ and 10 KΩ to Ω. This can be obtained as follow:
1 KΩ = 1000 Ω
Therefore,
1.1 KΩ = 1.1 KΩ × 1000 Ω / 1 KΩ
1.1 KΩ = 1100 Ω
1 KΩ = 1000 Ω
Therefore,
10 KΩ = 10 KΩ × 1000 Ω / 1 KΩ
10 KΩ = 10000 Ω
Finally, we shall determine determine the equivalent. This can be obtained as follow:
Resistor 1 (R₁) = 680 Ω
Resistor 2 (R₂) = 1100 Ω
Resistor 3 (R₃) = 10000 Ω
Equivalent Resistance (Rₑq) =?
Rₑq = R₁ + R₂ + R₃
Rₑq = 680 + 1100 + 10000
Rₑq = 11780 Ω
Thus, the equivalent resistance is 11780 Ω
46a. Determination of the voltage across 22 Ω
Current (I) = 0.50 A
Resistor (R₁) = 22 Ω
Voltage (V₁) =?
NOTE: the current is the same since the resistor are in series connection.
V₁ = IR₁
V₁ = 0.5 × 22
V₁ = 11 V
46b. Determination of the voltage across 15 Ω
Current (I) = 0.50 A
Resistor (R₂) = 15 Ω
Voltage (V₂) =?
NOTE: the current is the same since the resistor are in series connection.
V₂ = IR₂
V₂ = 0.5 × 15
V₂ = 7.5 V
46c. Determination of the voltage of the battery.
Voltage 1 (V₁) = 11 V
Voltage 2 (V₂) = 7.5 V
Battery voltage (V) =?
V = V₁ + V₂
V = 11 + 7.5
V = 18.5 V
47. Determination of the current.
We'll begin by calculating the equivalent resistance. This can be obtained as follow:
Resistor 1 (R₁) = 22 Ω
Resistor 2 (R₂) = 4.5 Ω
Equivalent Resistance (R) =?
R = R₁ + R₂
R = 22 + 4.5
R = 26.5 Ω
Finally, we shall determine the current.
Voltage (V) = 45 V
Resistance (R) = 26.5 Ω
Current (I) =?
V = IR
45 = I × 26.5
Divide both side by 26.5
I = 45 / 26.5
I = 1.70 A
Spatial awareness is knowing where you are in relationship to teammates, opponents, and the field of play.
O. Truth
O. False
Answer:
A.) True
Explanation:
"Spatial awareness refers to being aware of your surroundings and your position relative to them. "
-healthline.com
It's essentially knowing where you are in the field, and who/what's around you.
how can we improve natural resources
Answer:
reduce, reuse, and recycle paper,plastic, electricity, glass, fiber
In the system shown above, the pulley is a uniform disk with a mass of .75 kg and a radius of 6.5 cm. The coefficient of friction between the 5.8 kg mass and the horizontal surface is .25, and the ropes does not slip on the pulley. They system is released from rest. Use work-energy principles to determine the kinetic energy of the (a) 2.8 kg mass and (b) the pulley after the 5.8 kg mass has moved 2.2 meters.
Answer:
i am answering the same question 3rd time
please find the answer in the images attached.
It took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 km/h. How far did the train travel between the two cities?
Answer: 420 km
Explanation:
120 per hour, 3.5 hours
120 x 3.5 = 420
A researcher is trying to identify whether household substances are basic. Which approach would BEST help the researcher
investigate whether substances are basic?
A. Test each substance with red litmus paper.
B. Test each substance with blue litmus paper.
C. Observe each substance and record its color.
D. Mix each substance with a weak base and record the results.
Answer:
a
Explanation:
because red litmus paper turn blues under base or alkaline condition
You are playing baseball and hit a single, running to first base. Your distance and displacement are
Answer choices:
A. Both 90 feet
B. Both 0 feet
C. Distance 90 feet Displacement 0 feet
D. Distance 0 feet Displacement 90 feet
Answer:
C. Distance 90 feet Displacement 0 feet
What are tectonic plate boundaries?
A areas where Earth’s core experiences a high amount of stress
B areas where Earth’s core experiences a low amount of stress
C areas where Earth’s crust experiences a high amount of stress
D areas where Earth’s mantle experiences a high amount of stress
Answer:
c
Explanation:
Answer:
Areas where earth crust experiences a high amount of stress
Explanation:
FCAT review question
Which is one-dimensional
A.
acceleration
B.
all of them
C.
speed
D.
velocity
Answer:
B
Explanation:
They are all one-dimensional
10. A jogger runs along a road for a distance of 2700 m. If it takes her 900 seconds
to run that distance, what is her speed?
Answer:
Speed = 3 m/s
Explanation:
Given the following data;
Distance = 2700m
Time = 900 s
To find the speed;
Speed can be defined as distance covered per unit time. Speed is a scalar quantity and as such it has magnitude but no direction.
Mathematically, speed is given by the formula;
[tex]Speed = \frac{distance}{time}[/tex]
Substituting into the equation, we have;
[tex]Speed = \frac{2700}{900}[/tex]
Speed = 3 m/s
calculate the magnitude of distance and displacement of a body moving in a complete circle
Answer:
Total distance = 2πr
Total displacement = 0
Explanation:
To Calculate the magnitude of distance and displacement of a body moving in a complete circle, we must come to these facts that:
The distance = circumference of the circle which is equal to the product of 2 ,pi and radius r
That is
Circumference = 2πr
Since velocity is changing and not constant, it is a vector quantity. Likewise displacement is a vector quantity.
The total displacement will be equal to zero.
Therefore, total distance is equal to the circumference of a circle while total displacement is equal to zero.
Describe the energy transformations that must occur from batteries to the light in remote control. Can you think of any other objects where the same energy transformation occurs?
Answer:
Pressing the button: Mechanical to electrical
Waste energy from this step: Mechanical to heat
Converting electrical signal to IR: electrical to electromagnetic (infrared rays)
Waste energy from this step: electrical to heat
Chemical energy from battery: chemical to electrical
Explanation:
3. The shrillness of sound is known as_________
Answer:
pitched sound
Explanation:
The shrillness of sound is known as Pitched Sound
Please mark me as brilliant
plz plz plz
Answer:
pitch
Explanation:
Lee knew that certain events occur to create new material in the process of sea-floor spreading. Rearrange the steps into the correct order by placing the event that happens first at the top. Place the event that occurs last at the bottom.
Answer:
Seafloor spreading is a geologic process in which tectonic plates—large slabs of Earth's lithosphere—split apart from each other. ... As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense.
Explanation:
did this help???
The correct order for in a breach in the Earth's crust, molten material pours upward is (2), (3) and (4).
What is the earth's crust?The Earth's Crust is the planet's outermost layer. The Crust is a portion of the lithosphere that lies above the mantle and comprises tectonic plates that provide a platform for all land on Earth.
We have:
Lee knew that certain events occur to create new material in the process of sea-floor spreading.
The correct order for in a breach in the Earth's crust, molten material pours upward:
The molten material hardens into solid strips of rock on both sides of the crack.The ocean floor on both sides of the crack moves farther away from the mid-ocean ridge.The ocean floor gradually becomes wider.Thus, the correct order for in a breach in the Earth's crust, molten material pours upward is (2), (3) and (4).
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which process is the source of most oxygen in the atmosphere
Answer:
photosynthesis
The air that enters human lungs contains about 21 percent oxygen. The process responsible for producing most of the Earth's oxygen is known as photosynthesis. In this process, plants and certain other organisms convert sunlight into oxygen and other products.
Explanation:
Hope it helps! Correct me if I am wrong!
I'm sure about my answer!
If you dont mind can you please mark me as brainlest?
Its ok if you don't want to!
But i hopefully it helps you!
Answer:
Photosynthesis I think
Explanation:
Which force is always attractive and has a very small range? strong nuclear O weak nuclear O gravitational electromagnetic
Answer:
Strong nuclear
Explanation:
Took a quiz on this and got it right
Answer:
Strong nuclear
Explanation:
A car is traveling south at 70 miles per hour.
A.
acceleration
B.
velocity
C.
speed
D.
centripetal force
Answer:
velocity
Explanation:
velocity includes the direction taken by a person or object
A 100 N force is applied to move an object a horizontal distance of 5 meters at constant speed in 10 seconds. How much power is done?
The power used when a 100 N force is applied to move an object through a distance of 5 m at constant speed in 10 seconds is 50 W
We'll begin by calculating the energy. This can be obtained as follow:
Force (F) = 100 N
Distance (s) = 5 m
Energy (E) =?E = F × s
E = 100 × 5
E = 500 JFinally, we shall determine the power. This can be obtained as follow:
Energy (E) = 500 J
Time (t) = 10 s
Power (P) =?[tex]P = \frac{E}{t}\\\\P = \frac{500}{10}[/tex]
P = 50 WTherefore, the power used in moving the object is 50 W.
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GIVING BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 25pts-
Answer:
D. Wind
Explanation:
Wind is Basically nothing how can you even use wind again when you cant even touch it you can only feel wind.
How do positive and negative acceleration differ?
Positive acceleration represents an object speeding up; negative acceleration represents an object slowing down.
Positive acceleration moves north or east; negative acceleration moves south or west.
Positive acceleration occurs when there is more velocity than speed; negative acceleration occurs when there is less velocity than speed.
Positive acceleration occurs when an object changes its speed but not its direction; negative acceleration occurs when an object changes both its speed and direction.
Answer:
acceleration
Explanation:
acceleration determines whether you will be adding to or subtracting from the velocity. while negative acceleration means you will subtract from the current value of the velocity and a positive acceleration means you will add
1.
You just earned a $1000 bonus at your job. Would you rather receive all the money at the end of the
year or half the money now and half the money later? Why?
Question 4 of 25
Which statement correctly compares nuclear fission with nuclear fusion?
A. Nuclear fission forms a larger nucleus, and nuclear fusion forms
smaller nuclei.
B. Nuclear fission uses a common isotope, and nuclear fusion uses a
rare isotope.
C. Nuclear fission reactions demonstrate the conservation of atomic
number, and nuclear fusion reactions do not.
D. Both nuclear fission and nuclear fusion produce energy from
matter
Help please
Answer:
Both nuclear fission and nuclear fusion produce energy from
matter
:D
Both nuclear fission and nuclear fusion produce energy from matter is the statement correctly comparing nuclear fission with nuclear fusion.
What is nuclear fusion?The process by which two or more tiny nuclei unite to generate a bigger nucleus is known as a nuclear fusion reaction.
The more energy it takes to liberate an electron from a smaller atom. This is referred to as binding energy.
As a result, when two little nuclei fuse together, there is more binding energy than when two big nuclei fuse together.
For example, the fusion of two hydrogen atoms produces more energy than the fusion of one helium atom, and surplus energy is expelled into space upon binding.
Both nuclear fission and nuclear fusion produce energy from matter is the statement correctly comparing nuclear fission with nuclear fusion.
Hence option D is correct.
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what is the order of magnitude for 3.9×10¹²
can someone help me???
Answer:
heliocentric is when the earth and the other planets revolves around the sun.
Explanation:
I'm not sure about which one but I do know what heliocentric is.
Can someone help me with this science one please
IF ITS RIGHT YOU WILL GET 5 STARS AND A BRAINLY WITH A LIKE
Answer:
DNA IS SMALLEST
NUCLEUS IS BIGGEST
PLEASE MARK BAiniRINIiEST