Two 0.425 kilogram soccer balls are attracted to one another by a gravitational force with an intensity of [tex]F =4.82*10^{-5}[/tex].
We must apply the equation shown below to calculate the gravitational force (F), All objects with mass are attracted to one another by the gravitational attraction, which has a magnitude that is directly proportional to the masses of the two objects and inversely proportional to the square of their distance from one another.
Therefore, the only unit left is meters kilograms per second squared, which is equal to newtons. Therefore, the gravitational force between the Earth and the Moon is 1.98 x 10^(-20) newtons.
Here magnitude in terms of force:
[tex]F=Gm_{1} m_{2}/r^{2} \\F = (6.67*10^{-11} * 0.425* 0.425)/0.5^{2} \\F =4.82*10^{-5}[/tex]
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Select the source(s) responsible for the magnetic field that exerts a force on the moving charge?
the charge
the current-carrying wire
the charge and the current-carrying wire
The current-carrying wire is the source(s) responsible for the magnetic field that exerts a force on the moving charge.
How does a magnetic field function?The same poles repel one another while opposite poles are attracted to one another. The north-seeking poles of the iron's atoms line up in the same direction when you rub it against a magnet. A magnetic field is produced by the force exerted by the aligned atoms.
The region surrounding a magnet where the effects of magnetism are felt is known as the magnetic field. To explain how the magnetic force is distributed in the area around and inside something magnetic in nature, we use the magnetic field as a tool.
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A flea jumps straight up to a maximum height of 0.500 m . How long is the flea in the air from the time it jumps to the time it hits the ground? (I figured out initial velocity was 3.13 m/s)
Time of flight is the time flea in the air from the time it jumps to the time it hits the ground 0.64 seconds.
Time of flight= 2 time of ascent=[tex]2\times(\frac{u}{g} )[/tex]=[tex]2\times (\frac{3.13}{9.8})[/tex]=0.64 seconds
The time it takes for an object, particle, or wave (whether acoustic, electromagnetic, etc.) to traverse a distance across a medium is measured as time of flight (ToF). This data can then be used to determine the particle's or medium's attributes or to measure the particle's or path's velocity or length (such as composition or flow rate).The amount of time it takes the body to rise to its highest point from its starting posture is known as the ascension time. Complete solution, step-by-step For a projectile motion, the time to reach maximum height is called time of ascent.
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When you hear sounds through a wall, you can hear lower pitched sounds more clearly than higher pitched sounds. Use a model to explain why.
Sound waves travel through the air and can be blocked by walls. When a sound wave passes through a wall, the wall absorbs some of the sound energy, resulting in the higher-pitched sound waves being blocked more than lower-pitched sound waves.
This is because higher-pitched sound waves have shorter wavelengths, making them more susceptible to being blocked than lower-pitched sound waves, which have longer wavelengths.
This phenomenon is known as wave-particle duality, which states that sound waves have both particle-like and wave-like properties. The particle-like property of higher-pitched sound waves makes them more susceptible to being blocked by walls than lower-pitched sound waves. This is why you can hear lower-pitched sounds more clearly when they pass through a wall.
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a meter stick is supported by a knife edge at the 50-cm mark and has a mass of 0.40 kg hanging at the 20 cm mark and a 0.60 kg hanging from the 80-cm mark. where should a third mass of 0.30 kg be hung to keep the stick balanced? group of answer choices 30 cm 25 cm 20 cm 70 cm
A third mass of 0.30 kg needs to be hung at a height of 30 cm.
Describe mass.a numerical representation of the fundamental aspect of all material, inertia. It generally refers to the body of matter's opposition to changing its velocity or location in response to the force applied to it. The change caused by an applied force is lower the more mass a body has.
Clockwise and counterclockwise torques must balance
4 * (50 - 20) = .6 * (80 - 50) + .3 * L
g is left out here because it will cancel
Here we are assuming the mass at L will generate aclockwise torque along with the .6 kg mass
so L is measured to the right of the 50 cm mark.
Solving the above equation (12 - 18) / .3 = L =-20
So the weight must be hung at 50 - 20 = 30 cm
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How much sooner does the box reach the bottom of the incline than the disk?Express your answer in terms of some or all of the variables m , h , θ , and R , as well as the acceleration due to gravity g.
The box reaches the bottom of the incline sooner than the disk by a distance equal to mgh/sin(θ). Express your answer in terms of some or all of the variables m , h , θ , and R , as well as the acceleration due to gravity g.
what is disk ?
A disk is a round, flat data storage device that is used in computers. It is composed of a metal or plastic disk and encased in a hard material such as metal, plastic, or rubber. The disk is divided into concentric circles, or tracks, which are divided into sectors. Data is stored on the disk in the form of magnetic or optical signals.
A disk drive is a device used to read and write data from and to a disk. It includes a spindle, which is the rotating part of the drive that holds the disk, and a read/write head that is used to read and write data. Data is read from and written to the disk by the read/write head, which is capable of moving along the surface of the disk.
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Answer:[tex]\sqrt{\frac{3h}{gsin^2(\theta)} }-\sqrt{\frac{2h}{gsin^2(\theta)}}[/tex]
Explanation:
the tape in a videotape cassette has a total length 281 m and can play for 2 h. As the tape starts to play, the full reel has an outer radius of 45 mm and an inner radius of 12 mm. At some point during the play, both reels will have the same angular speed?
what is this common angular speed?
The common angular speed is 6.5 x 10^⁻⁴ rad/s
What is the angular speed about?To calculate the common angular speed of the reels during play, we need to first determine the linear speed of the tape on the outer reel. We can use the formula:
Linear speed = tape length / play time
So the linear speed of the tape on the outer reel is:
Linear speed = 281 m / (2 h * 3600 s/h)
= 0.078 m/s
Then we can use the formula for linear speed to find the angular speed:
Linear speed = angular speed x radius
So the angular speed of the outer reel is:
Angular speed = Linear speed / radius
= 0.078 m/s / (45 mm / 1000 m/mm)
= 1.7 x 10^⁻⁴ rad/s
The inner reel radius is 12mm, so the angular speed of the inner reel is:
Angular speed = Linear speed / radius
= 0.078 m/s / (12 mm / 1000 m/mm)
= 6.5 x 10^⁻⁴ rad/s
This is the common angular speed of the reels when both have the same angular speed.
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A spring with spring constant k = 340 N/m is used to weigh a 6.7-kg fish. a. (2 pts.) Draw a picture of the fish and label Fspring and F, acting on the fish. Write down Newton's second law for the fish. b. (2 pts.) How far does the spring stretch?
(2 pts.) What is the weight of the fish.spring with spring constant k = 340 N/m is used to weigh a 6.7-kg fish. a. (2 pts.)
What is weight ?
Weight is a measurement of the force of gravity on an object or person. It is typically measured in units of mass such as kilograms, pounds, or ounces. Weight is an important factor in determining a person's overall health, as well as their ability to perform physical tasks.
The spring stretches 0.2 m.
Fspring = F = ma = 340N = 6.7kg * a
a = 340N/6.7kg = 50.7 m/s^2
Δx = vt = 0 * t = 0
Δx = (1/2)at^2 = (1/2)(50.7 m/s^2)(t^2)
t = √(2Δx/a) = √(2*0.2m/50.7 m/s^2) = 0.2 m
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What concept of arcology in the lesson appealed to you the most? How would you incorporate an arcology concept into your community design?
Arcology is the fusion of architecture with ecology, a comprehensive urban perspective. In nature, as organisms evolve, they increase in complexity and become a more compact system. A city should similarly evolve, functioning as a living system.
What is arcology ?Arcology's major goal is to stop urban sprawl, which can be accomplished by building self-sufficient, remote settlements and structures that are (ideally, gigantic).
While it is theoretically conceivable to construct an arcology, at least structurally, it would take creative engineering to ensure the essential energy generation, food production, and waste reclamation systems are sustainable.
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Answer:
The concept of arcology that appealed to me the most is the fusion of architecture with ecology. If I were to incorporate an arcology concept into my community design, I would focus on creating a pedestrian environment where pedestrians move efficiently and freely.
Explanation:
The efficiency of a steam turbine is 0.30 if during one cycle 120 j of heat are added to the system how much work can be done?
Explanation:
according to formula
efficiency= work output/work input
:. 0.30=work output/120
work output = 36J
hope this helps you.
the reason we use the kelvin scale for thermodynamic and dynamic meteorological equations is because:
The reason we use the kelvin scale for thermodynamic and dynamic meteorological equations is because it is an absolute temperature scale that relates directly to kinetic energy and volume.
What benefit does using the Kelvin scale have in particular?Using the Kelvin scale of temperature, it is easy to represent many fundamental laws and their associated mathematical equations. The Kelvin scale is a scale of absolute temperature, with zero at absolute zero. As an absolute scale, the Kelvin scale does not allow for degrees to be used in measurements.
Given that it only measures positive values and that its zero point is the temperature of absolute zero, the Kelvin scale is an absolute scale. The lowest theoretical temperature, or zero Kelvin, is the point at which a body can no longer lose thermal energy.
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conservation of momentum: a 14,000-kg boxcar is coasting at 1.50 m/s along a horizontal track when it suddenly hits and couples with a stationary 10,000-kg boxcar. what is the speed of the cars just after the collision?
The speed of the cars just after the collision is 0.875 m/s.
What is the calculated ?
The calculated answer will depend on the context of the question. Without more information it is not possible to provide a definitive answer.
The calculated answer is not possible to provide without knowing the question.
The calculated answer is not possible to determine without more information. Depending on the question and the associated data, the answer could vary.
This can be calculated using the conservation of momentum: Momentum before collision
Momentum after collision(14,000 kg x 1.50 m/s) + (10,000 kg x 0 m/s) = (24,000 kg x v),21,000 kg m/s = 24,000 kg x v,v = 21,000 kg m/s / 24,000 kg
= 0.875 m/s
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For the circuit in the previous part, with the frequency set at 1 Hz, what happens if the inductance of the inductor is increased? The maximum current decreases. The maximum current does not change. The maximum current increases.
With the frequency set at 1 Hz, if the inductance of the inductor is increased the maximum current increases. An increase in inductance of the inductor in an AC circuit will cause an increase in the maximum current.
The maximum current will rise when the inductor's inductance in an AC circuit increases. This is due to the fact that an increase in inductance also results in an increase in inductive reactance, which is the resistance to changes in current. In order to keep the same voltage across the inductor as the inductive reactance grows, the circuit's current must also grow. The inductive reactance is exactly inversely proportional to the inductance at a fixed frequency of 1 Hz, therefore as the inductance rises, the maximum current rises as well.It's also important to mention that the maximum current in an AC circuit is the peak current and in a sinusoidal wave the peak current is the RMS value multiplied by the square root of 2.
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a quarterback takes the ball from the line of scrimmage and runs backward for 11 m. he then runs sideways, parallel to the line of scrimmage for 17 m. next, he throws the ball forward 50.0 m, perpendicular to the line of scrimmage. the receiver is tackled immediately. how far is the football displaced from its original position?
The magnitude of the football's resultant displacement is 52.81 yards.
The given parameters;
initial displacement backwards = 10 yards
final displacement forward = 50 yards
vertical displacement = 15 yards
The resultant horizontal displacement, x = 50 yards - 11 yards = 61 yards
The resultant vertical displacement, y = 17 yards
The magnitude of the football's resultant displacement is calculated by applying Pythagoras theorem as shown below;
R² = y² + x²
R² = 50² + 17²
R² = 2789
R = √2789
R = 52.81 yards
Thus, the magnitude of the football's resultant displacement is 42.72 yards.
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the transverse wave shown has a wavelength of 1.5 m and is traveling in the x-direction. a graph with time in second on the x axis from 0 to 6 and amplitude on the y axis from negative 3 to 3. the wave starts at the origin and the crest goes up to 3, back down through 1 s and all the way down to negative 3. the wave crosses this x axis every second. how long does it take the wave to travel 6.0 m in the x-direction? 0.13 seconds 0.67 seconds 2.0 seconds 8.0 seconds
Given that it has a 1.5 m wavelength The wave moves 0.75 m in one second as a result it takes the wave 8 seconds to move 6.0 meters in the x-direction.
What is the first law of motion?Newton's First Law of Motion (Inertia) An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.
The wavelength of the wave is given as 1.5 meters and it is traveling in the x-direction. The speed of a wave can be calculated using the formula:
Speed = Wavelength / Period
Since the wave is crossing the x-axis every second, its period is 1 second. So, the speed of the wave can be calculated as:
Speed = 1.5 meters / 1 second = 1.5 meters/second
To find out how long it takes the wave to travel 6 meters in the x-direction, we can use the formula:
Time = Distance / Speed
Time = 6 meters / 1.5 meters/second = 8 seconds
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Answer:
8.0
Explanation:
If a 0.55 kg tennis ball is struck by a tennis racket with 12 N of force pointing right, what will be the acceleration on the tennis ball
If a 0.55 kg tennis ball is struck by a tennis racket with 12 N of force pointing right, then the acceleration on the tennis ball will be 21.82m/s²
The acceleration of a tennis ball is determined by the equation
a = F/m, where a is the acceleration, F is the force, and m is the mass. In this example, the force is 12 N and the mass is 0.55 kg. Thus, the acceleration of the tennis ball is 21.82 m/s².
a=12/0.55
=21.82 m/s²
The direction of the acceleration is determined by the direction of the force. Since the force is pointing right, the acceleration will also be pointing right. This means that the speed and velocity of the tennis ball will both increase as it moves in the right direction.
In addition, the acceleration will cause the ball to accelerate and reach a terminal velocity. This means that the speed of the ball will eventually reach a maximum and then remain constant. This is due to the force of gravity and the air resistance caused by the ball moving through the air.
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Which color of light, red or blue, travels faster in crown glass?
A. red
B. blue
C. their speeds are the same
D. depends on the material surrounding the glass
E. blue if the glass is thin
The color of light that travels faster in crown glass is red.
The speed of light in crown glass is the speed of light in a vacuum divided by the index of refraction of crown glass.
The speed of light traveling in vacuum = 3 times 10 to the 8 meters per second
The index of refraction of the crown glass for red light = 1.513
The index of refraction of the crown glass for blue light = 1.529
Therefore:
The speed of red color = 1.983 times 10 to the 8 meters per second
The speed of blue color = 1.962 times 10 to the 8 meters per second
Hence, the red light travels faster.
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an object slides at a constat speed on a frictonless surf.ace how much net force acts on teh object? how much
Only force or a normal force pointing upward. A shift is parallel to some of these forces, therefore no work occurs. Considering that the item is sliding at such a set speed, there's no pressure as in displaced direction.
In physics, what is frictionless?A surface is said to be frictionless if it has a force acting on any thing that is practically zero or insignificant, i.e., there is no resistance between the surface and the material, allow the substance to move and walk easily without any friction.
Does smooth imply a lack of friction?Since there are greater electromagnetic forces acting between the two surfaces when a surface has no roughness, it will have more static friction than a surface that is rough, making frictionless surfaces impossible. The author merely wishes to disregard drag for gentle slopes.
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as you increase in altitude (go up) in the atmosphere what happens to air density and air temperature?
The density of air decreases as the altitude increases. The Temperature value decreases as the pressure value decreases with an increase in altitude.
About density of airThe density of air or atmospheric density, denoted ρ, is the mass per unit volume of Earth's atmosphere. Air density, like air pressure, decreases with increasing altitude. It also changes with variation in atmospheric pressure, temperature and humidity. At 101.325 kPa (abs) and 20 °C (68 °F), air has a density of approximately 1.204 kg/m3 (0.0752 lb/cu ft), according to the International Standard Atmosphere (ISA). At 101.325 kPa (abs) and 15 °C (59 °F), air has a density of approximately 1.225 kg/m3 (0.0765 lb/cu ft), which is about 1⁄800 that of water, according to the International Standard Atmosphere (ISA).[citation needed] Pure liquid water is 1,000 kg/m3 (62 lb/cu ft).
Air density is a property used in many branches of science, engineering, and industry, including aeronautics; gravimetric analysis; the air-conditioning industry; atmospheric research and meteorology; agricultural engineering (modeling and tracking of Soil-Vegetation-Atmosphere-Transfer (SVAT) models); and the engineering community that deals with compressed air.
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T/F the test-mass is referred to as m and it hangs from the test-mass riser.
False: The radius of the circular route changes when the test-mass riser is moved along the platform.
A circular route is what?
In contrast to a linear road, which follows a straight line, a circular path has a circular form or loop. It is a kind of motion that frequently occurs in mathematics, engineering, and physics. Circular routes are frequently used in engineering to explain the motion of components like wheels, gears, and pulleys.
In mathematics, rotations, orbits, circles, and other types of curves are frequently represented as circular routes. Circular routes may be employed in design, architecture, and other fields as well.
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Six boxes are held at rest against identical walls. Rank the boxes on the basis of the magnitude of the normal force acting on them. Rank from largest to smallest.a. 140 N pushing on 5 kg box against wallb. 140 N pushing on 3 kg box against wallc. 120 N pushing on 3 kg box against walld. 150 N pushing on 7 kg box against walle. 130 N pushing on 7 kg box against wallf. 150 N pushing on 1 kg box against wall
The ranking of the boxes from largest to smallest is (d) 150 N pushing on 7 kg box, > (f) 150 N pushing on 1 kg box, > (a) 140 N pushing on 5 kg box, > (b) 140 N pushing on 3 kg box, > (e) 130 N pushing on 7 kg box, > (c) 120 N pushing on 3 kg box.
There are two forces acting on each book, perpendicular to each other. One is the pushing force, which is acting normal to the wall and the other one is gravitational force(weight) of the box acting downwards.
For box a) weight of the box, = 5 × 9.81 = 49.05 N
Pushing force on the box(a), = 140 N
Resultant force, R₁ = √(140²+49.05²) = 148.34 N
Similarly for box (b), R₂ = = √(140²+29.43²) = 143.06 N
Similarly for box (c), R₃ = = √(120²+29.43²) = 123.56 N
Similarly for box (d), R₄ = = √(150²+68.67²) = 164.97 N
Similarly for box (e), R₅ = = √(130²+68.67²) = 147.16 N
Similarly for box (f), R₆ = = √(150²+9.81²) = 150.32 N
So the ranking from largest to smallest force would be, d > f > a > b > e > c.
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When a 16.60 g gold nugget is placed in a graduated cylinder with water, the water level rises (see diagram). Based on this observation, calculate the density (g/cm3) of gold.
The density of gold can be calculated by dividing the mass of the gold nugget (16.60 g) by the volume of water it displaces (in cm3).
How to calculate the density of a material?The density of a material can be calculated by dividing the mass of the material by its volume. The formula is Density = Mass/Volume. In this case, the mass of the gold nugget is given (16.60 g) and the volume of water it displaces can be measured by reading the graduated cylinder.
To calculate the density of gold, we need to know the volume of water that the gold nugget displaces. To find the volume, we can subtract the initial water volume (V1) from the final water volume (V2) after the gold nugget has been added. We can then use the formula density = mass/volume to find the density of the gold nugget.
Density = mass / volume
Density of gold = 16.60 g / (V2 - V1)
The volume of water displaced by the gold nugget needs to be measured in order to calculate the density of the gold nugget.
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a football is kicked straight up into the air; it hits the ground 5.8 s later.
A. What was the greatest height reached by the ball? Assume it is kicked from ground level. B. With what speed did it leave the kicker's foot?
The height and velocity of the football are calculated below.
What is velocity?
Velocity is a vector quantity that describes the rate of change of an object's position in a specific direction. It is defined as the displacement (change in position) of an object per unit time. The units of velocity are typically meters per second (m/s) or kilometers per hour (km/h). Velocity can also be represented by a vector arrow pointing in the direction of motion, with the magnitude of the arrow representing the speed of the object.
A. The greatest height reached by the ball can be calculated using the equation:
h = v_i^2 / (2 * g)
where h is the height, v_i is the initial velocity, and g is the acceleration due to gravity (approximately 9.8 m/s^2).
To find h:
h = (v_i^2) / (2 * 9.8)
B. To find the initial velocity, we can use the equation:
v_f^2 = v_i^2 + 2 * a * d
where v_f is the final velocity, v_i is the initial velocity, a is the acceleration (in this case, the acceleration due to gravity), and d is the distance traveled.
The distance traveled is the height of the ball at its highest point, which we found in part A. Since the ball is coming back down, final velocity will be zero.
v_f = 0
and the distance traveled is h.
Therefore,
v_i^2 = 2 * 9.8 * h
Finally, the initial velocity can be found by taking the square root of v_i^2.
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a 1500 kg car accelerates from rest to 75 km/hr in 45 seconds. how much power is supplied by the engine to acclerate the car
The engine provides power to accelerate the car at a rate of 75 * 1,000 / 60 = 7500 / 6 = 1250 metric tonnes / sec (power = m* v / t).
What does "accelerate swiftly" mean?Things move more quickly when their rate, process, or other characteristics accelerate.It gets faster if the rate of anything accelerates or something accelerates it. The pace of growth will increase to 2.9% the following year.
Whatever happens when you speed up excessively?Your transmission will deteriorate if you drive quicker since your motor will use more gasoline or diesel every mile. Furthermore, going so swiftly puts additional strain on your engine's tiny moving parts, which could hasten their wear-out.
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what is the relative wavelength in the visible spectrum of red light and blue light and are these colours absorbed or reflected by chlorophyll?
The wavelength of red light in the visible spectrum is longer than that of blue light. In general, red light has a wavelength range of around 620–750 nanometers, while blue light has a wavelength range of around 450–495 nanometers.
Chlorophyll, the pigment that is responsible for photosynthesis in plants, primarily absorbs light in the blue and red regions of the visible spectrum. Chlorophyll reflects green light, which is why most plants appear green. Chlorophyll a absorbs the most light in the blue-violet and red (about 430 and 662 nm, respectively), while chlorophyll b absorbs in the blue and orange-red (about 453 and 642 nm, respectively)s why most plants appear green. Chlorophyll a absorbs the most light in the blue-violet and red (about 430 and 662 nm, respectively), while chlorophyll b absorbs in the blue and orange-red (about 453 and 642 nm, respectively). This is why it seems as if the chlorophyll reflects green.
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investigation- effect of mass and height on gravitational potential energy objective(s): i will be able to design and conduct an investigation to test my hypotheses about the factors affecting the gravitational potential energy of an object. materials: books, pegboards, water bottles, water, wooden blocks, graduated cylinders,.. circle your job(s): manager(s): material, time, recorder, overall review, reader,........................................ describe what exactly was your role: procedure:
the gravitational potential energy is held by an object the heavier it is and the higher it is above the surface of the earth.As weight and height increase, gravitational potential energy rises.
How does gravitational potential energy change with height?A doubling in height will lead to a doubling in gravitational potential energy since an object's gravitational potential energy is directly proportionate to its height above the zero point.The gravity potential energy will triple with a tripling of height.
What are the variables that could impact a body's or object's gravitational potential energy?Three variables—mass, gravity, and height—determine the gravitational potential energy.Energy is directly inversely proportional to all three variables.
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suppose we look at a photograph of many galaxies. assuming that all of these galaxies formed at the same time after the big bang, which galaxies, as seen in the photo, would appear to be the youngest?
The galaxy that would appear to be the youngest when we look at a photograph of many galaxies assuming that all of these galaxies formed at the same time after the big bang is the one that is farthest away (option C)
The youngest and farthest galaxy that scientists have seen is GN-z11. This video pans to the object's distance of 32 billion light-years.
High-redshift galaxy GN-z11 can be found in the constellation Ursa Major. It was the farthest known galaxy ever found from Earth.
The 2016 publication led by Pascal Oesch and Gabriel Brammer revealed the 2015 discovery (Cosmic Dawn Center). With a spectroscopic redshift of z = 10.957, or a proper distance of roughly 32 billion light-years, GN-z11 was the oldest and most distant known galaxy yet identified in the observable universe until the James Webb Space Telescope found JADES-GS-z13-0 in 2022. (9.8 billion parsecs).
The question is incomplete, it should be:
Suppose that we look at a photograph of many galaxies. Assuming that all galaxies formed at about the same time, which galaxy in the picture is the youngest?
a. the one that is reddest in color
b. the one that is bluest in color
c. the one that is farthest away
d. the one that is closest to us e. the one that appears smallest in size
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Suppose the wind speed in a hurricane is 108 mph. (a) Find the difference in air pressure outside a home and inside a home (where the wind speed is zero). The density of air is 1.29 kg/m3.
The stated difference in air pressure between the outside and interior of a residence is 1528.86 Pa. (where the wind speed is zero).
What is the wind energy physics?The blades of a turbine, which resemble propellers and function much like an aeroplane wing, capture the wind's energy. A pocket or minimal air develops on one blade's other side as the wind blows. The blade is subsequently drawn into the low-pressure air pocket, which turns the rotor. It is known as lifting.
Spped of wind out side the home V₁ = 109 mph
= 109 * 1.608 Kmph
= 175.272Kmph
= 48.686 m/s
Spped of wind inside the home V₂ = 0 Kmph
Density of air ρ = 1.29Kg/m³
Bernoulli's equation states:
Pressure difference P = [tex]\mathrm{P}_2-\mathrm{P}_1=\frac{1}{2} \rho\left(v_1^2-v_2^2\right)[/tex]
= 0.5 * 1.29 * (48.686)²
= 1528.86 Pa
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Calculate the kinetic energy of a body whose mass is 150kg covering a total distance of 115km/hr
The kinetic energy of a body whose mass is 150kg covering a total distance of 115km/hr is 76,512.27J.
How to calculate kinetic energy?Kinetic energy is the energy possessed by an object because of its motion, equal (nonrelativistically) to one half the mass of the body times the square of its speed.
Kinetic energy = ½ mv²
Where;
m = massK.E = kinetic energyv = velocityAccording to this question, a body of mass 150kg is covering a total distance of 115km/hr.
115km/hr = 31.94m/s
K.E = ½ × 150 × 31.94²
K.E = 76,512.27J
Therefore, 76,512.27J is the kinetic energy of the body.
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a meteorite plunges to earth, embedding it- self 100 cm into the ground. if it does 400 mj of work in the process, what average force does the meteorite exert on the ground?
Work is described as the force applied over a distance, so
W = Fxd
F = W/d = 400 mJ / 0.1 m = 4000 N
So the average force exerted by the it on the ground is 4000 N.
What are the components of work?If work is done then there are three components involved. These are the amount of force, the distance of the displacement, and the reason behind the displacement. After multiplying force and distance for work, we get the unit of joules.
What is the connection between force and work?Work is the usage of force to move an object. It is directly related to the force involved and the distance the thing moves. Work can be calculated with: Work = Force x Distance.
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calculate the amplitude at point on the string a distance of 17.0 cm from the left-hand end of the string. express your answer in meters.
calculate the amplitude at point on the string a distance of 17.0 cm from the left-hand end of the string. express your answer in meters.
In this case, we are given the distance of the point from the left-hand end of the string, but we are not given the amplitude of the source. So, we cannot calculate the amplitude at the point using the information provided.
To calculate the amplitude at a point on a string, we need to know the amplitude of the source that is vibrating the string and the distance the point is from the source. To calculate the amplitude at a point on the string a distance of 17.0 cm from the left-hand end of the string, we can use the equation for a sinusoidal wave: y(x,t) = A * sin (2π (f(t-x/v)) ). Where A is the amplitude, f is the frequency, λ is the wavelength, t is time, v is the speed of the wave, and x is the position along the string.. Let's assume that the amplitude of the wave at the left-hand end of the string is A0. The amplitude at a distance of x = 17.0 cm from the left-hand end of the string is given by: A = A0 * cos(2π(x/λ)). We know that the distance is given in centimeters, but the formula is in meters, so we need to convert it to meters. The distance 17cm is equal to 0.17m. The amplitude at a point 17.0 cm from the left-hand end of the string is: A = A0 * cos(2π(0.17m/λ)).
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