Answer:
The answer is 23.69 mLExplanation:
The new volume can be found by using the formula
\(P_1V_1 = P_2V_2\)
Since we are finding the new volume
\(V_2 = \frac{P_1V_1}{P_2} \\\)
From the question we have
101.325 kPa = 101325 Pa
96 kPa = 96000 Pa
From the question we have
\(V_2 = \frac{25 \times 96000}{101325} = \frac{2400000}{101325} \\ = 23.68615840...\)
We have the final answer as
23.69 mLHope this helps you
According to Boyle's law, as volume decreases, pressure ____________ , and as volume increases, pressure ____________ .
Answer:
In chemistry, according to Boyle's law it tells us that the pressure and volume of an ideal gas are inversely proportional. The pressure has an inverse relationship with the volume. As the volume increases two times, then the pressure of the gas decreases two times.
Explanation:
A 70 kg skier starts from rest and travels down the irregular surface of a hill, finally coming to rest at point 2000 meters East and 550 meters below the starting point. How much work did the frictional forces of the snow and wind do on the skier
-377,715 Joules is the work done by frictional forces (snow and wind) on the skier.
To determine the work done by frictional forces on the skier, we need to first find the gravitational potential energy (GPE) lost and then use the work-energy principle.
1. Calculate the GPE lost:
GPE = mgh
where m = 70 kg (mass), g = 9.81 m/s² (acceleration due to gravity), and h = 550 m (vertical height)
GPE = 70 kg * 9.81 m/s² * 550 m = 377,715 J (Joules)
2. Use the work-energy principle:
According to the work-energy principle, the work done by frictional forces (W_friction) equals the change in kinetic energy (ΔKE) plus the change in gravitational potential energy (ΔGPE).
Since the skier starts and ends at rest, ΔKE = 0.
Thus, W_friction = ΔKE + ΔGPE = 0 + (-377,715 J)
So, the work done by frictional forces (snow and wind) on the skier is -377,715 Joules. The negative sign indicates that the frictional forces oppose the skier's motion.
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Suppose with 200 n of force applied horizontally to your 1500 n refrigerator that it slides across your kitchen floor at a constant velocity. what are the friction forces on the refrigerator?
Think about a point item (or particle) that is moving horizontally while being affected by a net force that is not zero. The object's acceleration is inversely proportional to its mass and to the strength of the applied force.
Known data:
The word "force" has a specific meaning in science. At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains." One thing experiences a force from another. There is no distinction between living and non-living things in the concept of a force.
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11. A car is traveling at 12,000 m/hr. How many km/hr is it traveling? (1km=1000m)
To convert the speed from meters per hour to kilometers per hour, you can divide the speed in meters per hour by 1000 to get the speed in kilometers per hour.
In this case, the car is traveling at a speed of 12,000 m/hr. Dividing this speed by 1000 gives us a speed of 12,000/1000=12 km/hr.
So the car is traveling at a speed of 12 km/hr.
The bearing of grids of an AB alignment is 100º 22', while the magnetic declination is 8º30' E. What are the true azimuth, magnetic azimuth, and grid azimuth of this alignment?
The true azimuth of the AB alignment is 91º 52' (east of north), the magnetic azimuth is 100º 22' (east of north), and the grid azimuth is 108º 52' (east of north).
To find the true azimuth, magnetic azimuth, and grid azimuth of the AB alignment, we need to consider the magnetic declination. The magnetic declination indicates the angle between true north and magnetic north at a specific location. In this case, the magnetic declination is 8º 30' E, which means that the magnetic north is 8º 30' east of the true north.
To calculate the true azimuth, we subtract the magnetic declination from the grid azimuth. The grid azimuth is given as 100º 22', so subtracting the magnetic declination of 8º 30' E gives us a true azimuth of 91º 52' (east of north).
The magnetic azimuth remains the same as the grid azimuth, which is 100º 22' (east of north).
The grid azimuth is calculated by adding the magnetic declination to the true azimuth. Since the magnetic declination is east, we add it to the true azimuth. Adding 8º 30' E to the true azimuth of 91º 52' gives us a grid azimuth of 108º 52' (east of north).
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how many moons are in our galaxy if u count all the other planets moons?
Can anyone help me on the summer and winter Gizmo questions. Activities A and B?
Answer:
sure, do you have more detailed of the assignments...?
Explanation:
i) Show that total energy of the body at points A, B and C during the fall is same. ii) Find the distance from A to B and final velocity of the ball just reach before C. mass =5 kg, total height (h)= 100m
The total energy of the body at evevry point is remained same due to the law of conservation of energy. Distance from A to B and final velocity of the ball just reach before C is 44.3 m/s.
d (distance) from A to B is = √2gh
In this case given are, g = 9.8 m/s² and h = 100m,
so here d = √(2⋅9.8⋅100) = 44.3m.
Final velocity ,v = √2gh
Here given are , v is the velocity, g is the acceleration due to gravity, and h is the height. In this case,
g = 9.8 m/s² ,h = 100m,
v = √(2⋅9.8⋅100)
= 44.3 m/s (final velocity)
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Please Hurry! Which best describes solubility? A. the speed at which a substance dissolves B. the ability of one substance to dissolve in another C.the amount of surface area per a given mass D.the temperature at which substances become a mixture
The option that describe solubility in this question is the ability of one substance to dissolve in another
Solubility can be regarded as the degree or extent that a particular substance can dissolves in a particular solvent so that a solution can be made.The unit of solubility is written as ( grams of solute per litre of solvent). Solubility of substance or fluid in a solvent could be complete, for instance, methanol and water.some solubility could be partial such as oil and waterIn a simplified form,( Solute + solvent )= solutionOne of the factor that affect solubility is temperature, the higher this factor, the faster the solubility.Therefore, solubility involves one substance dissolving in another.
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Answer B.
Explanation
B. the ability of one substance to dissolve in another
i got 100% on this question for edge 2023
i hope this answers is helpful.
Have a great day!
The cambined electrical resistance R of two resistors R1 and R2, connected in parallel, is given by the equation below, where R, R1, and R2 are measured in ohms. R1 and R are increasing at rates of 0.9 and 1.7 ohms per second, respectively.
1/R = 1/R1+1/R2
At what rate (in ohm/sec) is R changing when R1=58 ohms and R2=78 ohms? (Round your answer to three decimal ploces.)
_____ohmisec
To find the rate at which the combined electrical resistance R is changing, we can differentiate the equation 1/R = 1/R1 + 1/R2 with respect to time.
Differentiating both sides of the equation with respect to time (t), we get:
d(1/R)/dt = d(1/R1)/dt + d(1/R2)/dt
Now, let's substitute the given rates of change into the equation:
d(1/R)/dt = 0 + 0 = 0 (since R does not change over time)
To find the rate at which R is changing, we can take the reciprocal of both sides:
dR/dt = 1 / (d(1/R)/dt)
Since d(1/R)/dt is equal to 0, we cannot divide by zero, which means the rate at which R is changing cannot be determined using this equation.
Therefore, the rate at which R is changing when R1 = 58 ohms and R2 = 78 ohms is undefined or cannot be determined.
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Conductor terminal and splicing devices must be _____ for the conductor material and they must be properly installed and used.
Conductor terminal and splicing devices must be identified for the conductor material and they must be properly installed and used.
What are conductor terminals?In physics and electricity, a conductor terminal can be defined as the ending point of an electrical conductor, which consists of specific components to reach the movement of the electrical field.
In conclusion, the conductor terminal and splicing devices must be identified for the conductor material and they must be properly installed and used.
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PLEASE HELP MEE I REALLY NEED IT
Answer:
measures of central tendency are numbers that describe what an average or typical within a distribution of data there are three main measures of central tendency mean medium and mold well they are all measuring essential tendency each is calculated differently and measures something different from others
Why did explorers want to find a way accross the North American continent
Answer:
The Desire for New Trade Routes
Extra:
European explorers found the New World by mistake; they were not looking to find new continents but new sea routes. Europeans mainly wanted to find better trade routes to China, India, and Southeast Asia.
please give brainliest if possible
1. How is the attractive electrostatic force between a proton and an electron indicated in Coulomb's law?
the sum of the charges indicates a positive force
the product of the charges indicates a positive force
the product of the charges indicates a negative force
the sum of the charges indicates a negative force
2. One particle has a negative charge, while another particle is neutral. Which statement describes the electrostatic force between these two particles?
There would be no electrostatic force because the sum of the two charges is 0.
The electrostatic force is attractive due to the particle with negative charge.
There would be no electrostatic force because the product of the two charges is 0.
The electrostatic force is repulsive due to the particle with negative charge.
3. How would the electrostatic force change if Coulomb's law included a negative sign?
Like charges would repel, and opposite charges would attract.
It would not make a difference in the electrostatic force.
It would depend on the magnitude of the charges.
Like charges would attract, and opposite charges would repel.
What is the value and the direction of an electric field at a distance of 2.5 m from a +1 nC charge?
approximately 145 V/m directed away from the positive charge
approximately 145 V/m directed toward the positive charge
approximately 1.45 V/m directed away from the positive charge
approximately 1.45 V/m directed toward the positive charge
Answer:
The product of the charges indicates a negative force
There would be no electrostatic force because the product of the two charges wld be zero
Like chargers wld attract, and opposite charges wld repel
Approximately 1.45 V/m directed away from the positive charge
Explanation:
According to Coulomb's law the electrostatic force is directly proportional to the product of the charges and inversely proportional to the distance separating them.
According to Coulomb's law;
F =\(Kq1q2/r^2\\\)
Where;
K = constant of Coulomb's law
q1 and q2 are the respective magnitudes of the charges
r = distance separating the charges
Hence,according to Coulomb's law, the product of the charges indicates a negative force.
According to Coulomb's law, for a negative charge, and a neutral particle, there would be no electrostatic force because the product of the two charges is 0. If Coulomb's law included a negative sign then Like charges would attract, and opposite charges would repel.
The electric field is given by the formula;
\(E = kq/r^2\\k= 9 * 10^9 Nm^2C-2\\q =1 * 10^-9 C\\r = 2.5 m\\E = 9 * 10^9 Nm^2C-2 * 1 * 10^-9 C/( 2.5 m)^2\\E = 1.45 V/m\)
The direction of the electric field is 1.45 V/m directed away from the positive charge.
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19. In an earthquake, most deaths are caused by. .
A. Ground waves
B. Liquefaction
C. P waves
D. Damage to buildings
Answer:
ground Waves
Explanation:
If 53 kg Boulder fall of the cliff what is the force which it will hit the ground? Is she correct?
Answer:
F = 520 NExplanation:
We've got m = 53 kg and a = g = 9.81 m/s^2. So to find the force we must do the following:
F = mg
F = (53kg)(9.81 m/s^2)
F = 520 N
A dog can run a distance of 20m in 10s.
Answer:
he can run 2m in 1 sec
Explanation:
20/10=2
Impulse equals?
A) momentum x velocity
B) momentum x time
C) mass x velocity
Answer:
B
Explanation:
The impulse experienced by an object is the force•time.
the coil of a moving coil galvanometer has 50 turns and its resistance is 10ω. it is replaced by a coil having 100 turns and resistance 50ω . find the factor by which the current and voltage sensitivities change.
The current sensitivity of the first coil is 0.5 times that of the second coil. The voltage sensitivity of the first coil is 2.5 times that of the second coil.
What is current and voltage sensitivity?Current sensitivity can be determined as how much a galvanometer will deflect on flowing some current through it. Voltage sensitivity can be determined by how much the galvanometer will show deflection when a potential difference is developed across its ends.
Current sensitivity is directly proportional to the number of turns while voltage sensitivity is the ratio of the number of turns of the coil to the resistance.
The number of turns in the first coil, n₁ = 50
The number of turns in the second coil, n₂= 100
The current sensitivity:
\(\frac{CS_1}{CS_2}= \frac{50}{100}\)
C.S₁ = 0.5 C.S₂
The current sensitivity of the first coil is 0.5 times that of the second coil.
Given the resistance of the first coil = 10 ohm
The resistance of the second coil = 50 ohm
The voltage sensitivity of coils:
\(\frac{V.S_1}{V.S_2} =\frac{50/10}{100/50}\)
V.S₁ = 2.5 V.S₂
The voltage sensitivity of the first coil is 2.5 times that of the second coil.
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How is it possible for the same object to have different amounts of gravitational potential energy?
Answer:
In Newtonian mechanics, the gravitational energy possessed by a mass, because of the gravitational field produced by a second mass.
Explanation:
Brian Berg of lowa built a house of cards 4.88 m tall. Suppose Berg throws a ball from ground level
with a velocity of 9.98 m/s straight up. What is the velocity of the ball as it first passes the top of
the card house?
Answer:
Vf = final velocity = 1.96 [m/s]
Explanation:
To solve this problem we must use the following equation of kinematics.
\(v_{f}^{2}=v_{o}^{2}-2*g*x\)
where:
Vf = final velocity [m/s]
Vo = initial velocity = 9.98 [m/s]
g = gravity acceleration = 9.81 [m/s²]
x = vertical distance [m]
\(v_{f}^{2}=(9.98)^{2}-2*9.81*4.88\\v_{f}^{2} = 99.6-95.74\\v_{f}=\sqrt{3.8544}\\v_{f}=1.96[m/s]\)
Note: The negative sign of the gravity acceleration means that the gravity acceleration is pointing in the opposite direction of the movement.
What does it mean for a hypothesis to be testable?
O A. It must be able to reject biased data.
O B. It must be supported by peer review.
O C. It must be able to be supported or refuted by data.
O D. It must be what the scientist is hoping is the result.
Answer:
The answer is C
Explanation:
Testable meaning experiments can be conducted to support or refute the hypothesis. This is done through data.
A science class was conducting an investigation about the transformation between potential energy and kinetic energy. The students dropped a basketball from different heights above the floor. They videotaped the ball while it was falling and then calculated the ball's kinetic energy just before it hit the floor. Answer:
The kinetic energy of the basketball is the greatest when it is dropped from the highest point because kinetic energy is proportional to the square of the mass and the speed of the ball before it hits the floor
The kinetic energy of the basketball is the greatest when it is dropped from the highest point in this type of scenario.
What is Kinetic energy?This is referred to as the energy possessed by a body by virtue of its motion while potential energy is the energy possessed by a body by virtue if its position.
Formula of potential energy = mgh where m is mass, g is acceleration due to gravity, h is height.
Formula of kinetic energy = 1/2mv² where m is mass and v is velocity.
The kinetic energy of the basketball is the greatest when it is dropped from the highest point because it has a direct relationship with the square of the mass and the speed of the ball before it hits the floor.
This therefore depicts that at a bigger height means that the kinetic energy of that substance will be also big and vice versa which is therefore the reason why it was chosen as the correct choice.
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The full question is:
A science class was conducting an investigation about the transformation between potential energy and kinetic energy. The students dropped a basketball from different heights above the floor. They videotaped the ball while it was falling and then calculated the ball's kinetic energy just before it hit the floor. At what point is the kinetic energy the greatest.
How much kinetic energy does leaves moving in the street have?
Answer:
as much as the wind is blowing has
a car is traveling 20 m/s. it takes 4 seconds with a 7,500 n force to come to a stop. what is the mass of the car
Answer:
mass equals 375 kg
Explanation:
f=ma
f=7500
a=20
m=f/a
m=7500/20
m=375
1500 kg is the mass of the car.
What is Newton's second law of motion?Newton's second law of motion describes the relationship between an object's mass and the amount of force needed to accelerate it.
Newton's second law is often stated as,
F=ma, which means the force (F) acting on an object is equal to the mass (m) of an object times its acceleration (a).
According to the question,
Mass = 20m/s , Time = 4s , Force = 7500 N
a = Δv/Δt
a = 20m/s / 4s
a = 5 m/s²
If F = ma then,
7500 N = m x 5 m/s²
m = \(\frac{7500 N }{ 5m/s^{2} }\)
m = 1500 kg
Therefore,
1500 kg is the mass of the car.
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Net Force (N) = 5. 0
Mass (kg) = 2. 5
What is acceleration?
The acceleration of the object is 2.0 m/s². This means that for every second the object is in motion, its velocity will increase by 2.0 meters per second.
The given information is the net force (N) = 5.0 and the mass (kg) = 2.5. We need to determine the acceleration.
Acceleration is the rate at which an object's velocity changes over time.
It is directly proportional to the net force applied to the object and inversely proportional to its mass.
The formula to calculate acceleration is:
Acceleration = Net Force / Mass
Now, let's substitute the given values into the formula:
Acceleration = 5.0 N / 2.5 kg
Simplifying the equation:
Acceleration = 2.0 m/s²
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The speed of S-waves is what percent of that of P-Waves?
Help plz
Answer:
For the distance range 50 to 500 km, the S-waves travel about 3.45 km/s and the P-waves around 8 km/s.
hope it helps.
Dawn is trying to find out how much weight she can push across the room. She is really trying to find her __________. A. flexibility B. muscular endurance C. cardiovascular fitness D. muscular strength Please select the best answer from the choices provided. A B C D
Answer:
D. muscular strength
Explanation:
Lifting any weight requires force to lift it. This force is the result of the muscular strength of the body. It is the muscular strength that determines the weight that a body can lift without any exhaustion. Muscular strength depends on the size of the muscular fibers and the nerves' ability. They help in activating the strength of the muscle. Lifting the objects and the ability to lift it are the outcome of the strength muscles have.
In the given situation, Dawn is trying to find her muscular strength.
Answer:
d
Explanation:
d
A person is going to take a trip from town eight to town D to do this they travel 60 KM in .45 hour And then stop in town before lunch it takes. 15 hour in the journey continues to town see over .5 hour and covers a distance of 30 KM they had to stop and pick up an item at the store that took .15 hour they restart their trip it took 1.5 hours to get to town which is 90 came away from town see what was a numerical value for the average speed of the trip
Answer:
v = 72 km / h
Explanation:
The definition of average speed is the distance traveled between the time interval
v = Δx / Δt
let's find the distance traveled
x = 60 + 30
x = 90 km
time spent, all time must be included, travel time and when stopped
t = 0.45 + 0.15 + 0.5+ 0.15
t = 1.25 h
we substitute in the initial equation
v = 90 / 1.25
v = 72 km / h
in going from one city to the other
The balance wheel of an old-fashioned watch oscillates with angular amplitude πrad and period 0.500s. Find (a) the maximum angular speed of the wheel, (b) the angular speed at displacement π/2rad, and (c) the magnitude of the angular acceleration at displacement π/4rad.
The angular speed at displacement π/2rad is 0rad/s and the magnitude of the angular acceleration at displacement π/4rad is 124 rad/s².
The maximum angular speed of the balance wheel can be found by dividing the angular amplitude by the period and multiplying by 2π. Therefore, the maximum angular speed is (π/0.500)(2π) = 12.57 rad/s.
To find the angular speed at displacement π/2rad, we can use the formula for simple harmonic motion, ω = ω₀cos(θ), where ω₀ is the maximum angular speed and θ is the displacement from the equilibrium position. Plugging in the given values, we get ω = 12.57cos(π/2) = 0 rad/s.
Finally, to find the magnitude of the angular acceleration at displacement π/4rad, we can use the formula a = -ω²x, where x is the displacement from the equilibrium position. Plugging in the given values, we get a = -(12.57)²(π/4) = -124rad/s². Therefore, the magnitude of the angular acceleration is 124 rad/s².
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