Area in physics can be found by division of the area into simple figures such as triangles, rectangles and trapezoids and offsets from a straight line.
How to find area in physics?Area is a measure of how much space is there inside a shape and calculating the area of a shape or surface can be useful in everyday life.
The amount of surface a two-dimensional shape can cover which is measured in square units is called area and the SI unit of area is the square meter.
Area = length x breadth and Area = π × radius × radius - formulas can be used for finding area of different quadrilaterals.
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The letter "B" is labeling what part of the wave?
B
Wavelength
Compression
Rarefaction
Amplitude
I don't think any of the choices on the list fits B.
B appears to be the time between two compressions, with a rarefaction between them labeled by C .
which relationship best represents the relationship between the magnitude of the centripetal acceleration and the speed of an object moving in a circle of constant radius?
the object's speed and centripetal acceleration in a circle with a constant radius is the exponential curve going up.
acceleration is the rate of change in both speed and direction of velocity over time. When something moves faster or slower in a straight line, it is said to have been accelerated. Because the direction is constantly shifting, motion on a circle accelerates even when the speed is constant. Both effects add to the acceleration for all other types of motion.
It is a vector quantity because acceleration has both a magnitude and a direction. Another vector quantity is velocity. The velocity vector change over a given period of time, divided by that period of time, is the definition of acceleration. The upper limit of the ratio of velocity change provides instantaneous acceleration (at a specific time and place).
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a pushing force of 7 n to the right is applied to a book on a table. a frictional force of 3 n is applied in the opposite direction. in which direction will the book move? (1 point)
The book will move in the right direction as the pushing force is greater than the frictional force.
What is the net force?The net force can be defined as the vector sum of all forces acting on an object. The net force is defined as a single force giving same the effect as the original forces on the object's motion.
The net force becomes the resultant force with the same effect on the rotational motion as all original forces took together by the object.
In the question, the pushing force will act in the opposite direction of the frictional force so we can find the net force by subtracting these two forces.
Given, the pushing force to push the box = 7N
The frictional force on the book, = 3 N
The net force on the book = 7N + (-3N) = 4N
Therefore, the net force act in the direction of the pushing force, therefore, the book will move in the right direction.
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Answer:The book will move to the right.
Explanation:
if the age of the universe were compressed to one year, with the big bang on january 1, about when did the milky way galaxy system form? in january in february in september in december
February is the month that the Milky Way galaxy system begins to develop.
What is milky way galaxy?
The Milky Way is a massive cluster of stars, gas, and dust. Because it would appear to be a whirling pinwheel from the top or bottom, this galaxy is a spiral galaxy. About 25,000 light-years from the galactic center, on one of the spiral arms, is where the Sun can be found.
What is the Big Bang hypothesis?
According to the Big Bang hypothesis, the universe originated from a single, unfathomably hot, and dense point (also known as a "singularity") more than 13 billion years ago. It didn't happen at a location that was previously there. Instead, it was the one who started space's expansion and cooling.
Therefore, February is the month to be considered as the formation of the Milky way galaxy.
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you see a manned aircraft in the distance while flying your drone at night. on the left, you're seeing a green light. on the right, you're seeing a red light. which direction is the aircraft headed?
The airplane is heading away from us when we see a manned aircraft in the distance while flying our drone at night.
Distance is the length between two points or items, and it is directionless. Since distance is a scalar attribute, it only takes into account the overall magnitude and ignores the start and end locations. Being a scalar attribute, distance may only be positive or zero; it cannot be the opposite.
Although kilometers (km) and centimeters (cm) or millimeters (mm) can also be used to express shorter distances, the meter (m) is the most used unit of measurement for distance (mm). When calculating distance, the letter D is usually used to denote the distance traveled.
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On a distance vs. time graph for an object, a line segment that is sloping upward indicates (1 point)
O motion in the positive direction.
O motion in the negative direction.
Othat the object is speeding up.
O that the object is accelerating.
If the line segment is slopping up, what that means is that the object is speeding up.
What is a graph?The term graph has to do with a plot that is shown on the x - y Cartesian plane that a vertical and a horizontal axis. In the distance vs. time graph, the distance is plotted on the vertical axis and the time is plotted on the horizontal axis.
We know that a line could be drawn that joins the plots in a graph. The slope if the graph can be obtained from this line of best fit that is obtained from the graph. This line could be moving upwards or downwards.
If the line is moving downwards, it means that the slowing down but a motion in the upwards direction could mean that the object is speeding up. Thus we have an increase in the speed of the object as the object is in motion.
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Answer:
motion in the positive direction
Explanation:
Remember "a straight line indicates a constant velocity"
A resistor, an inductor, and a capacitor are connected in series to an ac source. What is the phase angle between the voltages of the inductor and capacitor in this rlc circuit?.
If a resistor, an inductor and a capacitor are connected in series, the phase angle between the voltages of the inductor and capacitor in a RLC series circuit is 180 degrees.
A resistor , capacitor and inductor are key components of a RLC circuit. Resistor doesn't store energy but capacitor and inductor stores energy and that is the reason resistor is called a passive element and inductor and capacitors are called active element.
Inductor leads the current by a phase angle of 90 degrees and the voltage across the capacitor lags the current by 90 degrees, so the phase difference between the voltages of the inductor and the capacitor is 180 degrees in an RLC circuit.
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a motorcycle has a constant speed of 25.0 m/s as it passes over the top of a hill whose radius of curvature is 126 m. the mass of the motorcycle and driver is 342 kg. find the magnitudes of (a) the centripetal force and (b) the normal force that acts on the cycle.
The centripetal force on the motorcycle at the top of the hill is 1696.42 N and the normal force is 1723.57 N.
The speed of the motorcycle is 25 m/s and the mass of the motorcycle is 342 kg and the radius of curvature of the hill is 126m.
(a) The centripetal force on any curvature is given by,
F =MV²/R
Where,
F is the centripetal force,
M is the mass of the motorcycle,
R is the radius of curvature of the hill,
V is the speed at which it is travelling.
Putting all the values,
F = 342 x 25 x 25/126
F = 1696.42 N.
The centripetal force is 1696.42 N.
(b) At the top of the hill, the centripetal force and the normal force will be away from the ground and in opposite direction of the weight of the motorcycle,
N = W- F
W is the weight,
F is centripetal force and N is the normal force.
Putting values,
N = 3420 - 1696.42
N = 1723.57N.
The normal force is 1723.57 N.
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considering the length of these contact lines, if the liquid (with surface tension ) makes a contact angle with the ring's surface, what is the total upward, vertical force on the liquid due to its surface tension as the ring is pulled upward?
Droplets of liquid take on their shape due to surface tension.The uneven cohesive forces of the surface layer tend to draw water droplets into a spherical shape, despite their ease of deformation.
Does surface tension push or pull?When the cohesive forces between the liquid molecules are greater than the adhesion to the walls, capillary action results.Water adhesion to a vessel's walls causes the liquid near the borders to be forced upward.The entire liquid surface is drawn upward because the surface tension maintains the surface in place. Surface tension exerts a force that is tangential to the surface, whereas air pressure exerts a force that is perpendicular to the surface. The force transmitted through a rope, string, or wire when two opposing forces pull on it is known as tension. Surface tension depends on the nature of the liquid, the surrounding environment and temperature.To learn more about surface tension refer
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An electric pace heater draw 25. 0 A from a 200 V ource. It i operated, on the average, for 10. 0 h each day. At AED 0. 30 per kWh, how much doe it cot to operate the heater for 15 day?
The consumption to operate the heater for 15 days is $2.25
Electricity consumption refers to all of the electricity used to perform a movement, manufacture something, or definitely inhabit a construction. here are some examples: In a manufacturing unit, overall electricity consumption can be measured with aid of looking at how lots power a manufacturing technique consumes, for instance, via making car elements.
The full-strength intake consists of that of coal, crude oil and their products, natural gasoline, and electricity, but, it excludes the intake of gas of low calorific fee, bio-strength, and solar energy.
Calculation:-
Voltage (V) = 200 V
Current (I) = 25 A
Power (P) = VI = 200 * 25 = 5,000 W
Now, the calculation of the energy consumption for 15 days in KW/h
We will convert W to kW,
1000 W = 1kW
Therefore,
5,000 W = 5000 W × 1 KW / 1000 W = 5kW
The daily energy consumption will be calculated. This is attainable as follows,
P = 5kW
Time(t) = 10 h
Energy (E) = P/t = 5/10 = 0.5 kW/h per day.
Finally, we will calculate the energy usage for the next 30 days. This is attainable as follows:
1 day = 0.5 kW
Cost of one day = 0.5 * 0.30 = $ 0.15
Now, the cost to operate the heater for 15 days = $ 15 * 0.15 = $2.25
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5. the location and gimbal limits of the flir sensor prevent the p* from seeing the terrain directly beneath the aircraft. what must the p* do prior to conducting a landing from a hover?
Your ability to land safely is the primary prerequisite in order to protect your passengers and people on the ground.
Explain about the gimbal?
In the same way as a tripod would if you were shooting a picture or remained in one place while taking it, a gimbal employs sensors and motors to stabilize and support your camera.
The majority of contemporary rockets, including the Space Shuttle and the Saturn V moon rocket, employ a technique known as gimbaled thrust. The rocket's exhaust nozzle can be moved in either direction when using a gimbaled thrust system. In relation to the rocket's centre of gravity, the thrust direction changes when the nozzle is moved.
When using Euler angles in applied mathematics, the gimbal lock problem arises; creators of 3D computer programmes, such as 3D modelling, embedded navigation systems, and video games, must take care to avoid it.
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when two identical resistors are connected in series across the terminals of a battery, the power delivered by the battery is 20 w. if these resistors are connected in parallel across the terminals of the same battery, what is the power delivered by the battery?
If these resistors are connected in parallel across the terminals of the same battery, the power delivered by the battery is 80 W
Write the expression for the total power delivered by the battery in
parallel,Pp = 2P1
Here, Po is the total power delivered by the battery in parallel.
Pp = 2 [(ΔV)²/R]
= 4 [(ΔV)²/2R]
= 4Ps
Pp =4(20)
P =80 W
Electrical resistance is implemented as a circuit element by resistors, which are passive two-terminal electrical components. Resistors are devices that are used in electronic circuits for a variety of purposes, including lowering current flow, adjusting signal levels, dividing voltages, biasing active components, and terminating transmission lines. Electrical resistance is provided by a resistor, a two-terminal electrical component. Resistors are mainly used to split voltages, block transmission signals, reduce current flow, and bias active components in electronic circuits.
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a 20.0 kgkg wood ball hangs from a 1.30 mm -long wire. the maximum tension the wire can withstand without breaking is 400 nn . a 0.900 kgkg projectile traveling horizontally hits and embeds itself in the wood ball. part a what is the largest speed this projectile can have without causing the cable to break? express your answer with the appropriate units.
The answer is 99.5m/s
When the bullet strikes the wood it starts moving and due to cable its starts moving in circular motion so a centripetal force is generated towards the center so we can write
T - mg = mv²/r
Given:
m = (20 + 0.9)kg
maximum T = 500N
r = 1.3m
so,
500 - (20.9)(9.8) = (20.9) v²/ 1.3
v² = 4.285m/s
so the speed of wooden ball and projectile is 4.285m/s
Now by conservation of momentum
m₁v₁ = m₂v₂
(0.9)v = (20.9)(4.255)
v = 99.5m/s
So the safest speed of projectile is 99.5m/s
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A rocket is burning fuel at the rate of 300g/s and electing all the gas. In one direction of the rate of 500m/s what is maximum weight the rocket burn have if it going to move Vertically upward.
Correct option is D)
Overall momentum of the system is conserved.
Therefore, change in momentum of the rocket will be equal to that of the fuel.
Change in momentum of the fuel will be
Δmv=60000
Hence, change in momentum of the rocket will also be:
△P=60000
Thrust force F=
△t
△p
F=60000 N
After energy conversions, you end up with the same total amount of energy as the original amount energy. Which law explains this rule?.
The law that explains it is called the law of conservation of energy.
What does the law mean?The law of conservation of energy states that in an isolated system, the total energy remains constant, i.e., the total energy is conserved over time. Therefore, the initial energy of an isolated system is equal to the final energy of the system. As a result, energy can neither be destroyed nor created. Energy can only be transferred or transformed from one from to another.
The law of conservation of energy can be mathematically expressed as K₁ + U₁ = K₂ + U₂ where K₁ is the initial kinetic energy, U₁ is the initial potential energy, K₂ is the final kinetic energy and U₂ is the final potential energy.
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a glass slab of thickness 3 cm and refractive index 1.67 is placed on on ink mark on a piece of paper. for a person looking at the mark from a distance of 9.8 cm above it, what well the distance to the ink mark appear to be in cm?
The distance to the ink mark appear to be in 3.58cm.
How do you define refractive index?The refractive index, also known as the index of refraction, is a numerical value that is determined by comparing the difference between the speed of light in a vacuum and that of light in a material with a higher density. The refractive index variable is most usually represented by the letter n or n' in mathematical computations and descriptive language.
The measurement of how much a light ray bends when moving from one medium to another is called the refractive index. It is also known as n = c/v, which is the ratio of the speed of a light beam in a substance to that of a light ray in a vacuum.
The perceived depth of the link noted = real depth/µ
The perceived depth of the link noted = 3/1.67
The perceived depth of the link noted = 1.79cm
So, the person sees the mark from a distance = 1.79+1.79 = 3.58cm
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an outboard motor for a boat is rated at 35 hp. if it can move a particular boat at a steady speed of 35 km/h, what is the total force resisting the motion of the boat?
The total force resisting the motion of the boat will be 26850.6 Newton when an outboard motor for a boat is rated 35 hp.
What is force and what is the total force resisting the motion of the boat?Force is the quantity which is technically the product of mass and acceleration .Here the question is about a boat which is rated at 35 hp and speed of 35 km/h and the force resisting the motion of the boat is asked.Putting the formula P = F x v , that is power equals force multiply speed we can calculate the speed.F= P/V , converting power to watt , 35 hp= 35 x 745= 26,075 watt of the power used.Now converting speed into m/s , 35 km/hr = 35 x 5/18 = 9.7 m/s and then diving power and speed , 26075/ 9.7 = 26850 N.To know more about force visit:
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It takes 6 people pulling with a force of 500. N each to begin moving the opposing team which was pulling with a combined force of 2500. N during a match of tug-of -war. If the total mass of both teams was 2000. kg, what was the force due to static friction? HELP ME .
From the calculations, we have the coefficient of friction as 0.026.
What is the coefficient of static friction?We know that friction has to do with the force that tends to oppose the motion of an object. As such, the point where the force of friction acts is actually the surface that lies between two bodies.
Now, we can see that It takes 6 people pulling with a force of 500 N each to begin moving the opposing team which was pulling with a combined force of 2500 N. This implies that the total force of the people that are pulling from this other side is 6 (500N) = 3000 N
Now we have the net force that is acting on the the rope as; 3000 N - 2500 N = 500 N
Then;
Coefficient of friction = Net force/ Normal reaction
= 500 N/(2000 * 9.8) N
= 0.026
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the y-axis carries a uniform linear charge density of -30 nc/m, and there is a 4.0 nc point charge at the point (4 cm, 0 cm, 0 cm) as well as a -12 nc point charge at the point (6 cm, 0 cm, 0 cm). what is the electric flux through a spherical surface of radius 5 cm centered at the origin?
The sphere's surface has a net flow of 339 103 Nm2/C.
What measures the Gauss law?According to Gauss's rule of electricity, any closed surface's electric flux is inversely proportional to the net electric charge q enclosed by the surface, or q = q/0, where 0 is the electric permittivity of empty space, which has a value of 8.854 10-12 square coulombs per newton per square meter.
Given:
The total charge contained within the sphere's surface, q=-3 C
The sphere's radius is 5 cm (5 10 2 m).
To locate
the total electric flux across the sphere's surface.
Explanation:
The net electric flow through the surface of the sphere is determined by Gauss's law, which is as follows:
, Φ = q/ε0
which has a value of 8.854 10-12 square coulombs per newton per square meter.
where the permittivity of empty space equals 0.
Using the known values as a substitute
The sphere's surface has a net flow of 339 103 Nm2/C.
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a hydraulic lift used at an automotive repair shop raises a looo-kilogram car two meters off of the ground. what is the potential energy given to the car? * 1 point a) 1000 j b) 2000 j c) 10,000 j d)20,000 j
The potential energy provided to the car is 19600 joules, or around 20,000 j, when a 1000-kg car is raised two meter's off the ground using a hydraulic lift at an auto repair shop.
The energy that an item retains due to its position in hydraulic lift to other objects, hydraulic lift tensions, electric charge, or other Gravitational potential reasons is known as potential energy in physics. produces gravitational potential energy
GPE=mgh
where;
m equals the object's mass
g stands for the object's gravitational acceleration.
The height has increased by h in metres.
As The result is:
GPE = 1000kg*9.8m/s*2m
=19600kg m2/s2
=19600J
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at what speed do a bicycle and its rider, with a combined mass of 120 kgkg , have the same momentum as a 1800 kgkg car traveling at 5.4 m/sm/s ? express your answer to two significant figures and include the appropriate units.
27m./s speed do a bicycle and its rider, with a combined mass of 120 kg , have the same momentum as a 1800 kg car traveling at 5.4 m/s.
Speed can be defined as the distance travelled by the object per unit time. Momentum can be defined as the product of the mass and the speed of the object.
The equation for the momentum is p = mv
Here, m is the mass of the object and v is the speed of the object. The equation for the impulse is, I = mΔ v
Here, m is the mass and is the change in momentum. The equation for the change in speed is
Here, ΔV = [tex]V_{f} -V_{i}[/tex]
is the initial speed [tex]v_{i}[/tex]
is the final speed.[tex]v_{f}[/tex]
Step: 1
The equation for the momentum of the bike and rider is, P (B+R)= M [tex](B+R)^{V}[/tex]…… (1)
Here, M (B+R) is the mass of the bike and rider, and v is the speed of the bike and rider.
The equation for the momentum of the car is [tex]P_{car} = m_{car} V_{car}[/tex]…… (2)
Here,
[tex]m_{car }[/tex]is the mass of the car and
[tex]V_{car}[/tex]is the speed of the car.
According to the question, the momentum of the bike and rider is the same as that of the momentum of the car, that is,
Substitute the equations (1) and (2) in above equation.
[tex]M_({B+R^{v} )}[/tex]= [tex]M_{car}V_{car}[/tex]
Rearrange the above equation for v. v = [tex]M_{car}V_{car}[/tex]/[tex]M_({B+R^{} )}[/tex]
Substitute 1800 kg for[tex]M_{car}[/tex] , and for 5.4m/s in above equation.
v = ( [tex]\frac{(1800) (5.4)}{120}[/tex] = 27m./s
Here, the momentum of the bike and rider is depending on the combined mass of the bike and rider and the speed of the bike and raider.
What is speed?Measurement is the most important concept in science. There are many measurable quantities that are measured in basic or fundamental physical units. Speed is one such measurable quantity that measures the ratio of the distance travelled by an object to the time it takes to travel. Acceleration is defined as the rate of change of velocity with respect to time. Acceleration is a vector quantity because it has both magnitude and direction. It is also the second derivative of position with respect to time or the first derivative of velocity with respect to time.
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What is the correct order of the planets in the solar system, starting closest to the sun?.
The correct order of the planets in the solar system, starting closest to the sun will be the order Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune followed by the possible Planet Nine.
The sun, our star, and everything gravitationally connected to it, including the moons, planets, and dwarf planets like Pluto, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune, make up our solar system. The only known example of a habitable planet, the only star we can see up close, and the only planets we can explore with spacecraft are all found in the Solar System.
Understanding the formation and evolution of planets, as well as the conditions required for life, is dependent on studying the solar system. In a cloud of gas and dust known as the solar nebula, the Sun and the planets jointly created it 4.6 billion years ago.
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a man pulling an empty wagon causes it to accelerate at 1.4 m/s2 what will the acceleration be if he pulls with the same force when the wagon contains a child whose mass is three times that of the wagon? express your answer using two significant figures.
The acceleration will be 0.35 m/s^2 if he pulls with the same force when the wagon contains a child weighing 3 times of wagon.
What is acceleration and how the acceleration is calculated out to be so?Acceleration is a quantity which represents the force applied per unit mass of a substance .Here a man is pulling an empty wagon to accelerate at 1.4 m/s^2 and the question is asked the acceleration if pulled with same force.But the wagon contains a child whose mass is three times of the wagon .Considering 'M' the mass of wagon , 3M would be the mass of child and total mass = 4M.The pulling force on wagon would be 4Ma, since the force are equal , equating 1.4 M =4Ma , this implies a = 0.35m/s^2.So the acceleration with which the wagon is pulled is 0.35m/s^2 knowing the mass of child is three times the mass of wagon.To know more about acceleration visit:
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you are in a rocket ship in deep space, far away from any gravity. you decide to do an experiment to determine the mass of your rocket ship. initially your ship is traveling to the right at 800 m/s, then the engines begin to exert 300,000 n of constant force to the left and do so for 40 seconds. afterward, your rocket ship is traveling to the left at 200 m/s. what is the mass of your rocket ship?
The mass of the rocket travelling in the space is 20000 kg.
The initial velocity of the rocket is 800m/s.
The final velocity of the rocket is 200m/s.
The time for which the constant force of 300000 Newton is applied is 40 second.
We know that if the force is constant than the acceleration must be constant and for the constant acceleration we can use the equation of motion,
V = U + at
Where,
V is the final velocity,
Uis the initial velocity,
a is the acceleration,
t is the time period.
Putting values,
800 = 200 + a40
600 = 40a
a = 15m/s².
The acceleration of the rocket is 15m/s².
The force on an accelerated bodies given by,
F = Ma
M is the mass of the rocket,
Putting values,
300000 = M(15)
M = 20000 Kg.
So, the mass of the rocket is 20000 kg.
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an object with mass 3.1 kg is executing simple harmonic motion, attached to a spring with spring constant 260 n/m . when the object is 0.019 m from its equilibrium position, it is moving with a speed of 0.65 m/s . part a calculate the amplitude of the motion. express your answer to two significant figures and include the appropriate units.
The amplitude of the motion is A = 7.3*10⁻²m and the maximum speed attained by the object Vmax=0.66 m/s
speed v= 0.65 m/s
Angular speed is ω,
ω = √k/m=√260/3.1=9.15 s⁻¹
Amplitude = A is
A = √x²+v²/ω²
=√0.019²+0.65²/9.15²=0.073m
A=7.3*10⁻²m
Vmax=ωA=9.15*0.073
Vmax=0.66 m/s
The distance in amplitude between the wave's resting position and its highest movement. quantity of waves travelling by a particular point each second. The length of time it takes for one wave cycle to end. We experience loudness or volume as a function of the relative strength of the sound waves (transmitted vibrations).Amplitude is a tool for studying data on user behavior. It helps the growth, product, and marketing teams make decisions by drawing conclusions about user behavior from data. Understanding user behavior better can assist a business in developing fresh approaches to increase user engagement, customer loyalty, and income.
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The pilot of a plane measures an air velocity of 45.8 m/s south relative to the plane. An observer on the ground sees the plane pass overhead at a velocity of 40.3 m/s toward the north. What is the velocity of the wind that is affecting the plane relative to the observer?
a) 5.6 m/s to the north
b) 5.6 m/s to the south
c) 45.8 m/s to the north
d) 86.1 m/s to the south
The velocity of the wind that is affecting the plane relative to the observer is 5.5 m/s north.
Option A is the correct answer.
What is the velocity of the wind relative to the observer?
The velocity of the wind relative to the observer is the velocity of the wind measured from the observer as a frame of reference.
The relative velocity of the plane from the observer as the frame of reference is calculated as follows;
Vr² = Vp² + Vw²
where;
Vr is the relative velocity of the planeVp is the plane's velocity Vw is the velocity of the windThe given parameters;
velocity of the plane, Vp = 45.8 m/svelocity of the wind, Vw = 40.3 m/sVr² = Vp² + Vw²
Vr = √(Vp² + Vw²)
Vr = √(45.8² + 40.3²)
Vr = 61 m/s
The velocity of the wind that is affecting the plane relative to the observer is calculated as follows;
Vo = 45.8 m/s north - 40.3 m/s south = 5.5 m/s north
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a thin oil slick (index of refraction 1.50) floats on water (index of refraction 1.33). when a beam of white light strikes this slick at normal incidence from air, the only enhanced reflected colores are red (650nm) and violet (390 nm). what is the minimum thickness of the oil
The oil slick measures 325 nm thick, at the very least. There are a few methods for measuring slicks between 0.1 and 10 m (0.0001-0.001 mm), but these aren't helpful for oil spill cleanup.
What is an oil slick known as?An oil spill is the inadvertent release of a liquid petroleum hydrocarbon to the environment as just a consequence of human activity (also known as an oil slick). This is the typical definition of an oil slick; alternative definitions are covered in the article.
What does oily hair refer to?A combination of dark blue, green, or purple tones are applied to darker hair in this style, which is also known as oil spill hair because it gives the hair a shimmering appearance. It resembles the pastel hair style, but instead of using ultra-pale colors, deeper colours are blended to create the iridescent look..
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humans evolved in earth's atmosphere, therefore the pressures interior to the body are relatively close to atmospheric pressure. because the differences between internal body pressures and atmospheric pressure are so small, individuals have a difficult time gauging the magnitude of atmospheric pressure. suppose an individual is lying on his stomach with sheets of paper stacked on his back. if each sheet of paper has a mass of 0.004400.00440 kg and is the standard letter size of 8.5 in8.5 in by 11 in11 in ( 0.216 m by 0.279 m0.216 m by 0.279 m ), how many sheets must be stacked to produce a pressure on his back equal to atmospheric pressure (roughly 101325 pa101325 pa )?
A total of 151988 sheets of paper are required to be put on the individual so that it create a pressure of 1 atm.
We know that the pressure is given by the force applied on the area divided by the magnitude of the area.
Here, it is given that dimensions of the paper is 8.5 inch X 11 inch.
So the area of the paper is 93.5 in².
Converting inch square into metre square,
Area = 0.06m².
The mass of 1 sheet of paper is 0.004 kg.
So the force applied by the sheet of paper on the person will be equal to,
F = 0.004 × 10
F = 0.04 N.
Let us say that n number of sheets are required.
The pressure that is needed to be created is 101325 pascals.
Now,
Pressure = force/area
Putting the values,
101325 = N(0.04)/0.06
N = 151988.
So, total of 151988 sheets are required.
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HELP ASAP
Imagine you have a new strand of lights wired in series-
parallel. All the bulbs are working as expected.
Which place in the circuit has the highest resistance?
Projectile motion is a combination of _______________ motion in the horizontal direction, and ________________ motion in the vertical direction.
A. accelerated, accelerated
B. constant, constant
C. accelerated, constant
D. constant, accelerated
Projectile motion is a combination of constant motion in the horizontal direction, and accelerated motion in the vertical direction. Therefore, the correct answer option is: D. constant, accelerated.
What is projectile motion?Projectile motion can be defined as a form of motion which is experienced by a physical object (body) that is projected near the surface of planet Earth, while moving along a parabolic (u-shaped curve) path, and under the influence of a gravitational force only.
Based on scientific research and records by scientists such as Galileo, we can infer and logically deduce that the initial horizontal velocity of a physical object undergoing a projectile motion is always equal to its final horizontal velocity.
Additionally, Galileo stated that projectile motion combines constant or uniform motion in the horizontal direction and accelerated motion in the vertical direction.
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