That power increases. The sun's core can reach temperatures of 27 million degrees Fahrenheit. The convective zone, which is a sizable region, is where the energy moves outward.
What are wave amplitude and energy transport?
Transport of Energy and Wave Amplitude As was already explained, a wave is a phenomena that moves energy through a medium without moving any physical objects. When someone grips the first coil of a slinky and moves it back and forth, a pulse or wave is created.
What is the process of energy transfer in nature?
In nature, such just like in a coastal habitat, contains the details and transformations take place continuously. The sun's thermal radiation heats both the ground and the ocean.
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c. describe an object that floats in water and an object that sinks in water in terms of their respective densities, as well as in terms of the relationship between each one's weight and buoyant force. (1 point)
An object floats and sinks in water based on the density of that particular object.
What is buoyant force?The force that makes objects float is called buoyancy. It is the pressure placed on a surface that is partially or completely submerged in a fluid. Differences in pressure acting on opposing sides of an object submerged in a static fluid produce buoyancy.
Why does an object floats and sinks in water?An object that floats in water, such as a piece of wood or a rubber duck, has a lower density than the water it is in. This means that the weight of the object is less than the buoyant force acting on it, which is the upward force exerted by the water on the object.
An object that sinks in water, such as a rock or a metal bar, has a higher density than the water it is in. This means that the weight of the object is greater than the buoyant force acting on it, which means that the buoyant force is not sufficient to counteract the weight of the object and it sinks.
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when the outdoor emergency warning siren at cheryl's school was tested, the sound from the siren took 7.0 s to reach her house located 2.40 km from the school. what is the speed of sound in air?
According to question, The speed of sound in air is 342.85 m/s.
Define speed?the speed at which an object's location changes in any direction. The distance traveled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar quantity.Speed tells us how fast something or someone is travelling.
the solution is -
distance d = 2.4 km = 2400 m , time t = 7s
speed of sound = distance/time
speed of sound = 2400/7
speed of sound = 342.85 m/s
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an object is in freefall. it remains in freefall for 5 seconds before it hits the ground. how high was the object when it first started falling if its starting velocity was 0? (acceleration due to gravity is -9.8 meters/second 2).
The height of the object when it first started falling is 0 meters.
The equation used to calculate the height of an object in freefall is h = (1/2)gt2, where h is the height, g is the acceleration due to gravity (9.8 m/s2) and t is the time in seconds.
What is velocity?
Velocity is a vector quantity that measures the rate and direction of an object's motion. It is the rate at which an object's position changes over time, measured in meters per second (m/s).
Since the starting velocity is 0, the height when it first started falling is 0.
h = (1/2)gt2
h = (1/2)(-9.8 m/s2)(5s)2
h = 0 m
Therefore, The height of the object when it first started falling is 0 meters.
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you weigh 610 n. what would you weigh if the earth were seven times as massive as it is and its radius were six times its present value? answer in units of n.
You would weigh 118.6 N. The result is obtained using the formula for acceleration due to gravity.
What is the formula for acceleration due to gravity?The acceleration due to gravity can be counted by the following formula.
g = F/m = GM/R²
Where
g = acceleration due to gravitym = mass of test objectF = gravitational force or weight (W)G = universal gravitational constantM = mass of an objectR = distance from the center of mass of objectYou weigh 610 N. Find your weight if the earth's mass were seven times and its radius were six times its present value!
Let's say
g₁ = acceleration due to gravity 1g₂ = acceleration due to gravity 2M₂ = 7M₁R₂ = 6R₁The ratio of the accelerations due to gravity is
g₁/g₂ = (GM₁/R₁²)/(GM₂/R₂²)
g₁/g₂ = (M₁/R₁²)/(7M₁/(6R₁)²)
g₁/g₂ = (M₁/R₁²)/(7M₁/36R₁²)
g₁/g₂ = (36M₁R₁²)/(7M₁R₁²)
g₁/g₂ = 36/7
Your weight now would be
m = W/g
W₁/g₁ = W₂/g₂
610/36 = W₂/7
W₂ = (610×7)/36
W₂ = 118.6 N
Hence, your weight would be 118.6 N on the new earth.
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of the charge q initially on a tiny sphere, a por tion q is to be transferred to a second, nearby sphere. both spheres can be treated as particles and are fixed with a certain separation. for what value of q/q will the electrostatic force between the two spheres be maximized?
The value of q/Q for which the electrostatic force between the two spheres will be maximized is 0.5 .
What is called electrostatics?Electrostatics is a branch of physics that deals with the phenomena and properties of stationary or slow-moving electric charges. Electrostatic phenomena arise from the forces that electric charges exert on each other and are described by Coulomb's law.
What is electrostatic charge?Electrostatic charges. Static electricity or an electrostatic charge is a deficiency or excess of electrons which occurs on ungrounded or insulating surfaces. It is produced by triboelectric charges, charges that are generated by friction between two surfaces, such as the movement of paper through a copier or printer
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Newtonís third law states that for every action, there is a reaction. Which of the following accurately restates this law?
A.If object A exerts a force on object B, then object B always exerts a force back on A. The object with the greater mass exerts a greater force
B.If object A exerts a force on object B, then object B always exerts a force back on A. The object with the greater acceleration exerts a greater force
C.If object A exerts a force on object B, then object B always exerts a force back on A The two forces are equal in magnitude, but opposite in direction to each other.
D.If object A exerts a force on object B, then object B always exerts a force back on A. The object with the greater mass and acceleration exerts a greater force.
Answer:B
Explanation:
The answer would be B because Answer B exerts a force which has a reaction.
how should you hold a handgun for maximum accuracy? high on the grip with two hands high on the grip with one hand low on the grip with two hands low on the grip with one hand
Hold the pistol high mostly on grip to ensure that such recoil is sent straight back to the arm and hands. This enables more accurate shooting and better repeat shots. When two hands are available, use them.
What does a gun's recoil mean?Simply said, recoil is the gun's response to the expression of energy that is produced in the barrel and released from the muzzle. The hammer, which is located inside the gun's receiver, depresses your firing pin only when trigger is squeezed with enough force and pop the fuse on the round's end.
Recoil movement: what is it?The recoil is a backward motion that typically results from a force or contact. A gun will recoil when it moves rearward due to momentum. Mom might retreat from shock rather than momentum after hearing about your go to the shooting range.
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a 10cm×10cm×10cm wood block with a density of 720 kg/m3 floats in water.
PART A
What is the distance from the top of the block to the water if the water is fresh?
PART B
If it's seawater? Suppose that rho=1030kg/m3.
The distance from the top of the block to the water will be 3.6 cm, which is the volume displaced by the block divided by the area of the top of the block, which is 10cm x 10cm.
What is distance?Distance is a numerical measurement of how far apart two objects, places, or points are in space. It is often measured in units like kilometers, miles, meters, or feet. Distance can also be conceptualized in terms of time, as in the distance between two points in time.
PART A
If the water is fresh, the distance from the top of the block to the water is 3.6cm. This is because the block's density is 720 kg/m3, while the density of fresh water is 1000 kg/m3. Therefore, the block is lighter than the water and will float. The block will displace a volume of 1000 kg/m3, which is equal to 10 cm3. Thus, the distance from the top of the block to the water will be 3.6 cm, which is the volume displaced by the block divided by the area of the top of the block, which is 10cm x 10cm.
PART B
If the water is seawater, the distance from the top of the block to the water is 2.7cm. This is because the block's density is still 720 kg/m3, while the density of seawater is 1030 kg/m3. Therefore, the block is still lighter than the water and will still float. The block will displace a volume of 1030 kg/m3, which is equal to 10.3 cm3. Thus, the distance from the top of the block to the water will be 2.7 cm, which is the volume displaced by the block divided by the area of the top of the block, which is 10cm x 10cm.
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with the use of the hubble space telescope, scientists recently discovered a giant runaway star. it is 90 times larger than the sun and is very hot and blue-white in color. why does the sun appear to be brighter than this runaway star when viewed from earth?
The runaway star is farther away from Earth than the sun. the sun is closer to Earth than the runaway star if it seems brighter than the star and the star is 90 times bigger than the sun.
What is a runaway star?An exceptionally high proper motion, known as a runaway star, is a star that was supposed to have been ejected from a nearby binary system when its companion star exploded supernova. Beyond the Milky Way, these runaway stars seem to be widespread, especially in massive galaxy clusters.
Astronomers have found hundreds of billions of runaway stars in the Virgo cluster. The Milky Way's sun and all of its stars are revolving around its nucleus. Although there are some little local motions within this broader stream of stars, it is largely orderly. Compared to the sun, the runaway star is closer to Earth.
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gassuming the water is at rest, is the magnitude of the force of the water on the left side of the volume greater than, less than, or equal to the magnitude of the force of the water on the right side of the volume? explain your reasoning. 3. based on your answer to question a2, is the pressure at point b greater than, less than, or equal to the pressure at point c?
This is because the water is in equilibrium, meaning that the forces acting on it are balanced. In this case, the force on the left side is exerted by the water on the right side, and vice versa.
based on your answer to question a2, is the pressure at point b greater than, less than, or equal to the pressure at point c?Based on this, the pressure at point b will be equal to the pressure at point c. Pressure is defined as force per unit area, and since the magnitude of the force is the same on both sides, the pressure will also be the same.
the force of the water on the right side of the volume? explain your reasoning.It is important to note that the only assumption that can be made here is that the water is at rest. If water is in motion, the forces and pressures will be different.
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determine the orbital speed of a satellite that is orbiting the earth at an altitude where the gravitational acceleration is 8.70 m/s2.
The orbital speed of a satellite that is orbiting the earth at an altitude where the gravitational acceleration is 8.70 m/s^2 is 7.68×10^3m/s.
Given the centripetal acceleration of satellite (a) = 8.70 m/s^2
The mass of earth (M) = 5.98×10^24 kg
Let the radius of satellites orbit = R
The satellites orbital speed = v
We know that the satellite's centripetal acceleration (a = v²/R ) is equal to its gravitational acceleration.
v²/R = GM/R² here G is the gravitational constant 6.674×10-11 m3⋅kg-1⋅s-2
v² = GM/R
From centripetal acceleration we have R = v²/a. Then,
v² = GMa/v²
v = (GMa)^1/4
v = (6.674×10^-11 x 5.98×10^24 x 8.70)^1/4 = 7.68×10^3m/s
Hence the orbital speed of a satellite is 7.68×10^3m/s
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a car is safely negotiating an unbanked circular turn at a speed of 26 m/s. the road is dry, and the maximum static frictional force acts on the tires. suddenly a long wet patch in the road decreases the maximum static frictional force to one-fourth of its dry-road value. if the car is to continue safely around the curve, to what speed must the driver slow the car?
The speed of the car must be reduced to 13 m/sec to continue safely around the curve. if the value of maximum static friction constant reduced to 1/4th of the original value on the dry road.
The speed of the car, v = 26 m/s
Mass of the car =m
Radius of the curve = R
Coefficient of static frictional = μ
μ×mg = mv²/R
v² = μgR
v = √(μgR) = 26 m/s
If the static friction constant reduced to 1/4th of the original value, then
μ₁ = μ/4
v₁ = √(μ₁gR)
v₁ = √(μ/4×gR)
v₁ = 1/2×√(μgR)
v₁ = 1/2 × v
v₁ = 1/2 × 26 = 13 m/s
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a pendulum clock is in an elevator. the clock will run fast when the elevator is group of answer choices accelerating downward. falling at constant speed. accelerating upward. rising at constant speed.
The clock will run fast when the elevator is accelerating downward.
A pendulum clock is what?A pendulum clock is a timepiece that keeps time by swinging a weight called a pendulum. Because a pendulum is a harmonic oscillator, it has the advantage of swinging back and forth in a precise time interval that is based on its length and resists swinging at other rates.
What occurs when an elevator quickly ascends?The forces experienced in an elevator are applied in this way to Newton's second law. You feel heavy when moving upwards and lighter when moving downwardly when you accelerate. You would feel weightless if the elevator cable snapped since you and the elevator would both be descending at the same speed.
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Suppose you are at the edge of a cliff and throw one ball down to the ground below and another up at the same speed. The upward-thrown ball rises and then falls to the ground below. How do the speeds of the balls compare when striking the ground
The speed of the two balls when striking the ground will be the same. Both balls will have the same initial velocity when thrown, and the only force acting on them is gravity.
What is the speed?The speed of an object is the rate of change of its position relative to a frame of reference, and is a function of time. It is a scalar quantity and is measured in meters per second (m/s). The speed of an object can be calculated by dividing the distance covered by the object by the time taken. An object's speed can be increased or decreased by applying an external force.
Here the acting acceleration is gravity
So,
v₁ - u₁ = gt
v₂ - u₂ = gt
As time and and gravity is same
v₁ - u₁ = v₂ - u₂
As Initial velocity is 0
v₁ = v₂
Thus, velocity of both the balls will be same when hitting the ground.
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why does the pull of gravity on an astronaut get weaker as the astronaut moves farther from earth
The distance is inversely proportional to the magnitude of the gravitational force. As the distance increases, the magnitude of force decreases.
What is Gravitational force?The gravitational force on an object can be defined as the force of attraction or the attractive force which attracts all the physical forms which are having some mass. Gravitational force is by far the weakest recognized natural force of all.
Since, the gravitational force is inversely proportional to the square of the separation between the force and the object distance between the two interacting objects, there is more separation distance will result in weaker gravitational forces of attraction. So, as the two objects are separated from each other, the force of gravitation attraction between them also decreases.
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A police officer parked at the curb turns on his lights and siren, waits for traffic to clear, then pulls out and heads down the street. for an observer down the street, which is true?
a. the frequency of the siren is higher and the wavelength is shorter than it was at first.
b. the wavelength of the siren is shorter than it was at first, but the frequency is the same.
c. the wavelength of the siren is shorter and the frequency is lower than it was at first.
d. the frequency of the siren is higher than it was at first, but the wavelength is the same.
If a police officer is indeed parked near the curb, they can inspect it with the red light without risking damaging their night vision. waits for the traffic to clear before pulling out and moving down the road.
Can police run red lights without cause?
No, although they could if they were contacted in an emergency. For instance, it would be illegal for a police officer to switch on their lights and siren only to pass a red light if they were stuck in traffic behind a lot of automobiles and were impatient.
What do police lights that are not flashing mean?
"Police officers will turn this on while they are at a situation that is not particularly busy. Without the extra flash patterns and needless attention, this signals the presence of law enforcement. This is a common occurrence in densely populated areas
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surface features of venus was mapped with a. data received from rovers on the surface b. uv imaging by the odyssey spacecraft c. data received from multiple probes sent to the surface d. radar imaging by the magellan spacecraft e. observations made from the hubble space telescope
d. radar imaging by the Magellan spacecraft
The surface features of venus were mapped with radar imaging by the Magellan spacecraft.
What was used to map Venus's surface features?Radar was used to scan the scorching surface by NASA's Magellan probe, which completed a five-year mission to Venus in 1994. Magellan observed a region with intense volcanism. The orbiter observed a surface that was geologically speaking quite young, recently altered, and dotted with long chains of high mountains.
What person or thareg is the names of the features on Venus' surface?Venus has "paterae," or craters and volcanic calderas, that are named after notable, real women. All of Venus' features—there are just three exceptions—have female names. They are Maxwell Montes, Alpha Regio, and Beta Regio, named for the early radar pioneer James Maxwell.
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A magnetic field of magnitude 0.48 T is directed vertically upward. (a) Find the magnetic flux through a flat surface of area 19 cm2 if the surface is vertical. (b) Find the magnetic flux through a flat surface of area 19 cm2 if the surface is horizontal. (c) Find the magnetic flux through a flat surface of area 19 cm2 if the surface is at angle of 54° with the horizontal.
The magnetic flux is 9.12Wb, the magnetic flux, if the surface is horizontal, is 0, the magnetic flux in the area is 19 and angle 54 is 5.08Wb.
(a) The magnetic flux through a flat surface of area 19 cm2 if the surface is vertical can be calculated using the formula
Φ = BA, where Φ is the magnetic flux, B is the magnetic field strength, and A is the area of the surface. In this case, the magnetic flux is
0.48T ×19 cm² = 9.12 Wb.
(b) The magnetic flux through a flat surface of an area 19 cm2, if the surface is horizontal, is 0 Wb. This is because the magnetic field is directed vertically upward, so it will not be able to penetrate through a horizontal surface.
(c) The magnetic flux through a flat surface of area 19 cm2, if the surface is at an angle of 54° with the horizontal, can be calculated using the formula Φ = BAcosθ, where θ is the angle between the magnetic field and the surface. In this case, the magnetic flux is
0.48T ×19 cm²× cos(54°) = 5.08 Wb.
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if the radius of the hill is 30 meters, at what speed would the centripetal force equal the force of gravity
If the hill's circumference is 30 meters. The centripetal force equals the gravitational force at 9.39 m/s.
The centripetal force is defined.Any force that changes the direction of motion towards to center of either a circular motion is known as a centripetal force. The part of the force that produces the rotational motion is the part that is orthogonal to the velocity.
Is the force of gravity centripetal?Force acting is used to maintain an object moving in a circle due to gravity. Since gravity generally behaves opposed to motion, it has no effect on an item in a circular path.
Radius, r = 30 m
speed = v.
(Fr = (mv^2)/r
μk mg& = (mv^2)/r
v =√(μ_k gr)
v = √(0.30×9.80×30)
v = 9.39 m/s
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A ball with a horizontal speed of 1.25 m/s rolls off a bench 1.00 m above the floor.A. How long will it take the ball to hit the floor?B. How far from a point on the floor directly below the edge of the bench will the ball land?
Time to impact the ground is 0.45 seconds. It will land 0.56 meters away from the table. The bullet appears to be traveling straight forward without changing directions, according to the horizontal speed.
How is the horizontal speed determined?By measuring the ball's diameter d and dividing it by the time t it takes for it to cross the photogate, one can also calculate the ball's starting horizontal velocity. Therefore, Vo = d/t.
Is speed horizontal velocity?Typically, horizontal velocity is defined as horizontal displacement divided by time, expressed in units like meters per second or miles per hour. Simply put, displacement is the distance an object has traveled since leaving a starting location.
y=Vyi t + 1/2 gt²
1 = o+ 1/2 ×9.8×t²
1=4.9 ×t²
t²= 1/4.9= 0.204081633
==> t = 0.45 sec
x= Vx× t
Here
Vx = 1.25 m/sec
t= 0.45 sec
x= 1.25 × 0.45 = 0.56 m
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A wave with a frequency of 17 Hz ha a wavelength of 5 meter. At what peed will thi wave travel?
The wave's speed is 85 m/s if its wavelength is 5 meters and its frequency is 17 Hz.
What is a wave length?A waveform signal that is propagated in space or down a wire does have a wavelength, that is the separation between two equal places (adjacent crests) in the consecutive cycles. This length is typically specified in wireless systems in metres (m), centimetres (cm), or millimeters (mm) (mm).
given data,
frequency of the wave v = 17 Hz
Wavelength of the wave = 5m
speed of the wave s = ?
Calculating the speed of wave
We know that,
Speed= frequency × wavelength
Thus,
s= 17 × 5 m/s
s= 85 m/s
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What type of telescope is the hubble space telescope?
The Hubble space telescope is a reflecting telescope.
Mirrors are used by reflecting telescopes, also called reflectors, to collect and concentrate light. The HST features an eight-foot diameter primary mirror and a secondary mirror that focuses the light collected by the primary mirror onto the telescope's scientific equipment. The HST is a Cassegrain telescope, allowing for a compact design due to its concave primary mirror and convex secondary mirror.
Reflecting telescopes are frequently chosen over lens-based ones for space-based telescopes because lenses are more susceptible to distortion and poor image quality caused by thermal expansion and contraction than mirrors are. The HST was put into orbit in the year 1990 and has since been utilised to produce a number of ground-breaking astronomical discoveries.
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resonance is heard when the piston is 22.8 cm from the open end and again when it is 68.3 cm from the open end. (a) what speed of sound is implied by these data? (b) how far from the open end will the piston be when the next resonance is heard?
The frequency of the sound heard is the resonant frequency of the tube, which is determined by the length of the tube. The resonant frequency occurs when the length of the tube is equal to an integer multiple of one-fourth of the wavelength of the sound.
what is length ?
Length is a measurement of distance, typically used to describe the size of an object or the distance between two points. It is typically measured in meters, centimeters, millimeters, kilometers, feet, inches, and miles. In mathematical terms, length is a scalar quantity that represents the magnitude of a line segment.
Length can also be used to describe the amount of time that has passed, such as in the phrase "the length of a year." Length is an important concept in many areas of science, engineering, and mathematics, as it is used in determining the size and shape of objects, distances between points, and the rate at which things move.
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a 0.500-kg mass attached to a spring with a force constant of 8.00 n/m vibrates in simple harmonic motion with an amplitude of 10.0 cm. calculate (a) the maximum va
The maximum volt-ampere(va) is 0.40 m/s.
What is force?An influence that can alter an object's motion is called a force. A force can cause an object with mass to change its velocity or accelerate. (for example, moving from a state of rest). Intuitively, a push or a pull can also be used to describe force.
Given,
mass=0.500 kg
force=8.00 n/m
amplitude= 10.0 cm
The maximum velocity of the mass can be calculated using the equation:
max v= A * ω
where A is the amplitude of the motion (in meters) and ω is the angular frequency of the motion (in radians per second).
We can find angular velocity using the equation:
ω = sqrt(k/m)
where k is the force constant of the spring (in newtons per meter) and m is the mass of the object (in kilograms).
Substituting in the given values:
ω= sqrt(8.00 N/m / 0.500 kg) = 4 rad/s.
A = 0.10 m (converting the amplitude from cm to m)
So,v_max = A * ω = 0.10 m * 4 rad/s = 0.40 m/s.
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7 The diagram shows a beam lying on the ground. End Q is lifted from the ground by the force F.
End P of the beam remains on the ground.
The length of the beam is 3.0m and its weight is 600 N.
The centre of mass of the beam at G is 1.0 m from end P.
What is the size of the force F when it just raises end Q from the ground?
A 200 N
B 300 N
C 400 N
D 600N
With solution.
When the beam just raises end Q from the ground, the magnitude of force F will be 300 N.
What is center of mass?The unique location where the weighted relative position of the distributed mass adds to zero at any given time is known as the center of mass in physics.
At equilibrium, net torque = 0
Take forces acting anti-clockwise direction as positive:
so, - 600 N × (1.0 m) + F ×(2.0 m) = 0
F = 600 N × (1.0m ÷ 2.0 m)
F = 300 N.
Hence, when it just raises end Q from the ground, the magnitude of force F will be 300 N.
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suppose you throw a ball against a wall and catch it on the rebound. how many impulses were applied to the ball? which impulse was the greatest?
Answer: <3
Explanation: ):
15. two identical rifles are shot at the same time and the sound intensity level is 80.0 db at a location equidistant from both rifles. what would be the sound intensity level at this point if only one rifle were shot?
The sound level of intensity would be "61.7 dB" if only one weapon were fired. Sound volume. The answer to the query is. the shooting of two identical weapons.
80 dB is how loud?A loud noise is 80 dB or more. It's comparable to the commotion on a crowded city street. It is a loud noise level, and when you're exposed to it during longer periods of time (more than 8 to 10 hours per day), it could damage your hearing.
How loud is 80 dB?Decibels are used to measure loudness (dB). Loudness grows rapidly as decibel levels climb. A 10-dB increase equals a 10-fold increase in volume. Therefore, a vacuum cleaner's 80 dB sound is 10 times higher than a phone's 70 dB sound and 100 times higher than a standard 60 dB sound.
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The density of a liquid can be determined by weighing a known volume of the liquid in a graduated cylinder. The data from the experiment is as follows: weight of cylinder 10 grams; weight of cylinder and liquid 11.8 grams; reading from cylinder 7.5 mL. Calculate the density of this liquid using the
The density of the liquid is 0.24 g/mL or 240 kg/m³. The density of a liquid can be determined by weighing a known volume of the liquid in a graduated cylinder
What is the density of the liquid?The density of a substance is a measurement of its mass per unit volume. Density is commonly expressed in terms of grammes per millilitre (g/mL) or kilogrammes per litre (kg/L) for liquids. Although conditions like temperature and pressure can affect a liquid's density, it is typically thought of as a constant feature of a substance. For the same volume, a liquid with a higher density will weigh more than a liquid with a lower density.
To calculate the density of the liquid, use the formula: density = mass/volume.
Mass of liquid = 11.8 g - 10 g = 1.8 g
Volume of liquid = 7.5 mL
So, density = 1.8 g / 7.5 mL = 0.24 g/mL or 240 kg/m³
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A Venturi meter is a simple device for measuring fluid velocity in a gas such as air. When gas passes from left to right through the horizontal pipe, it speeds up as it passes through the constriction at point 2. Bernoulli's principle tells us that the gas pressure must be lower at point 2 than at point 1, and the pressure difference causes the liquid in the U-tube to drop on the left-hand side and rise on the right-hand side. Suppose the gas is air (density 1.20 kg/m3) that enters the left-hand side of the Venturi meter at 25.0 m/s. The horizontal tube has cross-sectional area 2.00 cm2 at point 1 and cross-sectional area 1.00 cm2 at point 2. If the liquid in the U-tube is water, what is the difference in height between the water columns on the left-hand and right-hand sides of the tube
The difference in height between the water columns on the left-hand and right-hand sides of the tube can be found using the principle of continuity of fluid flow. Applying this principle to the two points in the tube, we can write the following equation: A1 * v1 = A2 * v2
Where A1 is the cross-sectional area at point 1, v1 is the velocity of the fluid at point 1, A2 is the cross-sectional area at point 2, and v2 is the velocity of the fluid at point 2.
Since the fluid is water and is at rest, we can assume that the velocity of the fluid at both points is zero and the equation becomes:
A1 = A2 * h2 / h1
Therefore:
h2 = (A1 * h1) / A2
h2 = (2.00 cm2 * h1) / 1.00 cm2
h2 = 2h1
What is the principle of continuity of fluid flow?The principle of continuity of fluid flow states that what flows into a defined volume in a defined time, minus what flows out of that volume in that time, must accumulate in that volume.
What is a symbol of continuity?The continuity mode has a diode symbol, which is a triangle with a line on the right side.
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Which type of energy is transferred between the two objects due to the temperature difference between them?
The type of energy transferred between the two objects due to the temperature difference between them is known as heat energy.
The heat energy transfers from the object at higher temperature to the object at lower temperature.
The exchange of thermal energy between two objects is referred to as heat. The amount of thermal energy a thing possesses may be determined by its temperature; the higher the temperature, the faster the molecules inside the object move. The transfer of heat therefore occurs from the item at higher temperature to the object at lower temperature because an object at higher temperature has more thermal energy than an object at lower temperature.
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