PLEASE HELP, NO ONE IS HELPING MEEEE :(
While taking the stairs it takes you 10 seconds to reach the top. The next time you take the same stairs, it takes you 5 seconds to reach the top stair. During which of these trips up the stairs did you use more power to climb?
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Answer:
probably the trip where it took u 5 seconds
Related Questions
The average wavelength in a series of ocean waves is 15. 0 meters. A wave crest arrives at the shore an average of every 10. 0 seconds, so the frequency is 0. 100 Hz. What is the average speed of the waves?
Answers
A wave crest arrives on the shore a median of every 10. zero seconds, so the frequency is 0. one hundred Hz. The average speed of the waves is 1.five m/s.
We are to decide the common pace of the waves.
Using the formula
v = fλ
Where
v is the speed
f is the frequency
and λ is the wavelength
From the given information
f = 0.1 Hz
λ = 15.0 m
∴ Speed of the wave = 0.1 × 15.0
Speed of the wave = 1.5 m/s
Average speed is defined as the total distance traveled by an object divided by the time taken to cover that distance. It is the measure of the average rate at which an object covers a certain distance in a given amount of time. Mathematically, the average speed is expressed as: Average speed = Total distance traveled / Time taken
It is important to note that average speed is not the same as instantaneous speed, which refers to the speed of an object at a particular instant in time. Average speed takes into consideration the entire adventure, while instant velocity only reflects the velocity at a unmarried moment. The unit of measurement for average speed is meters per second (m/s) or kilometers per hour (km/h), depending on the system of measurement used.
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Help please.
How long is between each phase of the moon?
Answers
Answer:
The Moon actually takes 27.3 days to complete a single orbit around the earth. The Moon takes 29.5 days to complete one phase cycle.
Hope it helps!
what is the ecliptic? what is the ecliptic? the sun's daily path from east to west in our sky the path the sun appears to trace around the celestial sphere each year a half-circle extending from your horizon due north, through your zenith, to your horizon due south the path traced by the moon's shadow on earth during a solar eclipse
Answers
The orbital plane of the earth around the Sun is known as the ecliptic or ecliptic plane a path along the ecliptic can see against a background of stars from earth as the Sun moves around the celestial sphere.
Describe the ecliptic.Ecliptic in astronomy is the large circle that represents the Sun's apparent movement through the constellations over the course of a year from another angle it is the representation of Earth's orbit around the Sun on the celestial sphere Along the ecliptic the constellations of the zodiac are organized.
What are the Sun's ecliptic path?The sun's journey is indicated by the ecliptic a fictitious line in the sky Along with the moon planets also follow the ecliptic It designates the plane of the solar system by projecting Earth's orbit onto the cosmic sphere.
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A particle’s velocity along the x-axis is described by
v(T) = AT + BT2, A being 1m/s^2 while B being -1m/s^2
what is the distance that this particle has traveled between T0: 1s and T1: 3s
Answers
The distance that this particle has traveled between T0 = 1s and T1 = 3s is 0.
To find the distance that the particle has traveled between T0 = 1s and T1 = 3s, we need to calculate the displacement during this time interval. Displacement can be found by integrating the velocity function over the given time interval.
Given the velocity function v(T) = AT + BT^2, where A = 1 m/s^2 and B = -1 m/s^2, we can integrate it to find the displacement function.
First, integrate AT with respect to T:
∫(AT) dT = (1/2)AT^2 + C1
Next, integrate BT^2 with respect to T:
∫(BT^2) dT = (1/3)BT^3 + C2
Where C1 and C2 are constants of integration.
Now, we can find the displacement between T0 and T1 by evaluating the displacement function at T1 and subtracting the displacement at T0:
Displacement(T1) - Displacement(T0) = [(1/2)AT1^2 + C1 + (1/3)BT1^3 + C2] - [(1/2)AT0^2 + C1 + (1/3)BT0^3 + C2]
Since C1 and C2 are constants, they cancel out when subtracted:
Displacement(T1) - Displacement(T0) = (1/2)AT1^2 + (1/3)BT1^3 - (1/2)AT0^2 - (1/3)BT0^3
Substituting the given values T1 = 3s and T0 = 1s, and the values of A and B:
Displacement(3) - Displacement(1) = (1/2)(1)(3)^2 + (1/3)(-1)(3)^3 - (1/2)(1)(1)^2 - (1/3)(-1)(1)^3
Simplifying the equation:
Displacement(3) - Displacement(1) = 9/2 + (-9/3) - 1/2 + (-1/3)
Displacement(3) - Displacement(1) = 9/2 - 3 - 1/2 + (-1/3)
Displacement(3) - Displacement(1) = 9/2 - 6/2 - 1/2 + (-1/3)
Displacement(3) - Displacement(1) = (9 - 6 - 1 + (-2))/2
Displacement(3) - Displacement(1) = 0/2
Displacement(3) - Displacement(1) = 0
Therefore, the distance that this particle has traveled between T0 = 1s and T1 = 3s is 0.
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Two strong magnets were brought close to each other. They were repelling each other. Explain what must have happened.
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When two magnets are brought together, the opposite poles will attract one another, but the like poles will repel one another. This is similar to electric charges. Like charges repel, and unlike charges attract.
pls. mark brainliest am. dyning for it
According to Law of Magnetism,
"Like poles repel and unlike poles attract"
The poles are the North and South poles.
The two strong magnets repelled because the like poles either both North or both South, were brought together.
What pressure would the butane gas sample have at 120.0 mL?
Answers
The pressure of the butane gas sample at 120.0 mL can be determined by using the ideal gas law equation, PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.
To find the pressure of the butane gas sample at 120.0 mL, we need additional information such as the number of moles and the temperature of the gas. Once we have these values, we can use the ideal gas law equation, PV = nRT, to calculate the pressure.
1. Determine the values: Gather the known values for the problem, such as the volume (V = 120.0 mL) and any other given information, such as the number of moles (n) and the temperature (T).
2. Convert the volume: If necessary, convert the volume to the appropriate unit for the ideal gas law equation. The ideal gas law typically requires volume to be in liters, so if the given volume is in milliliters, divide it by 1000 to convert to liters.
3. Plug in the values: Substitute the known values into the ideal gas law equation, PV = nRT. Make sure to use consistent units for all the variables.
4. Solve for pressure: Rearrange the equation to solve for pressure (P). Divide both sides of the equation by the volume (V) to isolate pressure: P = (nRT) / V.
5. Calculate the pressure: Substitute the known values into the equation and perform the necessary calculations to find the pressure of the butane gas sample at 120.0 mL.
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An object describes the speed and the direction in which it is going
Answers
Answer:
alright you take the numbers of the speed and d
irection and multiply ........ example....234×567 =?
The specific heat capacity of a pure substance can be found by dividing the heat needed to change the temperature of a sample of the substance by the mass of the sample and by the change in temperature. The heat capacity of a certain substance has been measured to be. Suppose of the substance are heated until the temperature of the sample has changed by. Write an equation that will let you calculate the heat that was needed for this temperature change. Your equation should contain only symbols. Be sure you define each symbol.
Answers
An equation that will let you calculate the last Q that was needed for this temperature change is Q = MCΔT.
The following formula can be used to determine how much heat is required to cause a change in temperature:
Q = MCΔT
Where:
The required heat, Q, is expressed in joules (J).
M is the substance's mass, expressed in grams (g)
C is a substance's specific heat capacity expressed in J/g°C.
T is the change in temperature expressed in degrees celsius (°C).
As a result, we can determine how much heat is required to change the temperature as follows:
Q = MCΔT
Q = 420 x 3.52 x 43.8
Q = 64753.92 J
Thus, 64753.92 J of heat are required to change the temperature.
Your question is incomplete but most pprobably your full question was
The specific heat capacity of a pure substance can be found by dividing the heat needed to change the temperature of a sample of the substance by the mass of the sample and by the change in temperature. The specific heat capacity of a certain substance has been measured to be 3.52 J/g °C. Suppose 420.0 g of the substance is heated until the temperature of the sample has changed by 43.8 °C.
Write an equation that will let you calculate the last Q that was needed for this temperature change. Your equation should contain only symbols. Be sure to define each symbol.
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which of the following statements is true about a projectile at the instant at which it is at the highest point of its parabolic trajectory? group of answer choices its velocity is zero. both a and c the vertical component of its velocity is zero. the horizontal component of its velocity is zero. its acceleration is zero.
Answers
The correct statement about a projectile at the highest point of its parabolic trajectory is: "The vertical component of its velocity is zero."
At the highest point of its trajectory, a projectile momentarily comes to a stop in the vertical direction before reversing its motion and descending. This means that the vertical component of its velocity becomes zero. However, the projectile still possesses horizontal velocity, so the horizontal component of its velocity is not zero.
The other statements are not true at the highest point of the trajectory:
Its velocity is not zero; it only refers to the vertical component.Its acceleration is not zero; gravity continues to act on the projectile, causing it to accelerate downward.Therefore, the correct statement is that the vertical component of the projectile's velocity is zero at the highest point of its trajectory.
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A student asks a series of questions about a wave. The answer to which question will allow the student to determine whether the wave is electromagnetic or mechanical?.
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'Does the wave require a medium to travel? ' is the question to determine whether it is an electromagnetic or mechanical wave.
What is a mechanical wave?The definition of a mechanical wave is a wave whose energy cannot be transmitted in a vacuum. The energy of mechanical waves must be transferred from one place to another through a medium. Mechanical waves include sound waves. A vacuum is not conducive to the passage of sound waves. Other examples of mechanical waves are waves produced by a jump rope, a slinky, water, a stadium, and air pressure. Each of these mechanical waves needs a medium to exist. The coils from a slinky are necessary for a slinky wave, as are water, stadium crowds, and people in a stadium. A jump rope is also necessary for a jump rope wave. Charged particles vibrating cause electromagnetic waves to form.To learn more about electromagnetic waves, refer:
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hey plz solve this question I will mark as the brillianest plzzzzzzzzzzzzzzzzzzzz
Answers
Explanation:
I hope it helped U
stay safe stay happy
What is the frequency of a sound wave? A. It determines the medium of a sound. B. It determines the pitch of a sound. C. It determines the loudness of a sound. D. It determines the amplitude of a sound.
Answers
The frequency of a sound wave determines the pitch of a sound. The pitch of a sound is how high or low the sound is perceived to be, and it is directly related to the frequency of the sound wave. Therefore, the correct option is B.
a planar surface of area a with a unit normal vector sits in an uniform electric field . the electric flux through the surface is:
Answers
The highest flux would be reached if the planar surface was perpendicular to the electric field vector.
What is electric flux through planar surface?The electric flux through a planar area is defined as the electric field multiplied by the area component perpendicular to the field. If the area is not planar, the flux must be evaluated using an area integral because the angle is constantly changing.
The electric flux (E) travelling through a surface of vector area S is: E = ES = EScos, where E is the magnitude of the electric field (in units of V/m), S is the area of the surface, and is the angle between the electric field lines and the normal (perpendicular) to S.
To know more about The electric flux (E) travelling through a surface of vector area S is: E = ES = EScos, where E is the magnitude of the electric field (in units of V/m), S is the area of the surface, and is the angle between the electric field lines and the normal (perpendicular) to S.
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A bird in a tree vocalizes a sound that has a wavelength of 23 meters when the speed of sound is 338 m/s. What is the frequency of the sound the bird is making and can a normal human hear the bird?
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Using the above values for the speed of sound and wavelength, the frequency of the sound produced by the bird in the tree is determined to be 14.7 Hz. A typical person is unlikely to be able to hear this sound.
How can you calculate a sound wave's frequency from its wavelength?As with all waves, the relationship between the frequency and wavelength of sound is and its wavelength.
Does sound have a formula?The following equation can be used to calculate sound intensity: P stands for pressure change or amplitude, D stands for material density, and VW stands for measured sound speed. The more your sound wave oscillates, the louder your sound will be.
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Which element is represented by the atomic model below?
P:10
N:10
A. calcium
B. helium
C. neon
D. oxygen
Answers
a pump with a displacement of 65 cc/rev has a mechanical efficiency of 0.93. what is the actual torque (in n-m) when the outlet pressure is 18.1 mpa?
Answers
A pump with a displacement of 65 cc/rev has a mechanical efficiency of 0.93. When the outlet pressure is 18.1 MPa, the actual torque is 11709.5 N-m.
Torque is a force on a rotating axis that can cause an object to move in a circle or rotate. Torque is also known as the moment of force. Any force whose direction does not stop at the axis of rotation of the object or the object's point of mass can be said to give torque to the object.
To calculate the actual torque (in N-m) when the outlet pressure is 18.1 MPa for a pump with a displacement of 65 cc/rev and a mechanical efficiency of 0.93, you can use the formula
Torque = Pressure x Displacement / Efficiency.
Using this formula, the actual torque would be equal to
Torque = 18.1 MPa x 65 cc/rev / 0.93
Torque = 1709.5 N-m.
So, torque is 1709.5 N-m
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I need help please and thank you
Answers
Answer: magnitude= 2 m/s/s
Explanation: I goes up 2 every second
the force vs. time graphs for two collisions are shown. which collision has the largest impulse?
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Momentum is a product of the mass and velocity of particles in motion while impulse is the rate of change of the momentum of particles/objects when a force acts on the object.
The impulse of the collision in system A is twice the impulse of the collision in system B
Impulse is given as J = F.dt
In case of impulse 1,
it is F(1-0.5) = 4* 0.5 = 2 Ns
In case of impulse 2,
it is = 2(2.5 - 1.5) = 2Ns
We saw that, both the impulses are calculated to be 2Ns.
Therefore, both the impulses in the graph are same.
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Danny wants to construct a device that demonstrates one of Newton's laws of motion. He makes a small cart and adds marbles to it. He then places it on a ramp with a small wall at the end of the ramp. When he releases the cart, it accelerates down the ramp until it hits the small wall at the end. His setup is shown below.
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Answer: D. It shows Newton's first law of motion, which states that an object tends to stay in motion unless an outside force acts upon it.
Explanation:
Newton's first law of motion states that an object tends to stay in motion unless an outside force acts upon it.
A constant net force acts on an object. Describe the motion of the object
a) constant acceleration
B) constant speed
C) constant velocity
D) increasing acceleration
Answers
Answer:
C)constant velocity
Explanation:
it is probably corrected
A gymnast performs an amazing flip! He lands on the floor and his feet put a force downwards on the floor. Newton’s Third Law reaction force is:
(A)The weight of gravity on the gymnast
(B)The weight of gravity on the floor
(C)The force of the floor upwards on his feet
(D)The force of the floor downwards on his feet
Answers
Answer:
Solution in photo
Explanation:
What is one physical benefit that can be obtained from participating in field events?
A) strengthen balance
B) better sleep pattern
C) increase capacity for learning
D) all of the above
Answers
Answer:
D
Explanation:
It does all three
Series circuit when you had one bulb and battery voltage was at 9 volts, what was current into battery?
1) .90amps
2) .40amps
3) .30 amps
Answers
Answer:
incomplete question, resistor must be there
Explanation:
consequences and application of heat
Answers
Answer:
Prolonged exposure to extreme heat can cause heat exhaustion, heat cramps, heat stroke, and death, as well as exacerbate preexisting chronic conditions, such as various respiratory, cerebral, and cardiovascular diseases.
Mass of block A above is 25-kg. Calculate the force of gravity on block A.
Answers
Answer:w+mg
Explanation:
In terms of the four forces acting on an airplane, what needs to happen so the forces are balanced? what do we call it when all four forces are balanced on an airplane?
Answers
For the four forces to be balanced, thrust must be equal to drag, and lift must equal weight. When this happens we say the airplane is cruising.
The force that resists an aircraft's motion through the air is called drag. Every component of the aircraft produces drag, including the engines. A mechanical force is a drag. It is created when a solid body interacts with and contacts a fluid (liquid or gas). It is not produced by a force field in the sense of a gravitational field or an electromagnetic field, in which two objects can interact without coming into touch with one another.
The solid body needs to be in touch with the fluid for drag to be produced. There won't be any drag if there is no fluid. The velocity difference between a solid object and a fluid causes drag.
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Class 10 cbse
Question: Draw the ray diagram in each case to show the position and nature of the image formed when the object is placed:
(i) at the centre of curvature of a concave mirror
(ii) between the pole P and focus F of a concave mirror
(iii) in front of a convex mirror
Answers
Explanation:
I hope it will help you. But I am in Grade nine .And sry too cuz I told the answer of Grade nine .
If there's a crescent moon observed in Texas, what will an observer at the North Pole see?
A full moon, third quarter moon, first quarter moon, or crescent moon?
Answers
If there is a crescent moon observed in Texas, an observer at the North Pole would see a full moon.
The reason for this is that the Earth's rotation causes the appearance of the moon to change depending on the observer's location. When the moon is in a crescent phase, it means that only a small portion of the illuminated side of the moon is visible from the Earth.
However, since the North Pole is located at a high latitude, it is in a position where it can see a larger portion of the moon's surface. In this case, the observer at the North Pole would have a different line of sight compared to someone in Texas and would see the entire illuminated side of the moon, resulting in a full moon.
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The acceleration due to gravity on Mimas a moon on Saturn, is 0.066m/s^2 . Starting from rest how much time does it take for an object to fall 10m on Mimas?
Answers
The equation to obtain the vertical distance cobered by the object is,
\(h=ut+\frac{1}{2}gt^2\)The acceleration due to gravity on saturn is 0.066 m/s2.
Plug in the known values,
\(\begin{gathered} 10\text{ m=(0 m/s)t+}\frac{1}{2}(0.066m/s^2)t^2 \\ t^2=\frac{2(10\text{ m)}}{0.066m/s^2} \\ t=\sqrt[]{303.03s^2} \\ \approx17.4\text{ s} \end{gathered}\)Thus, the time taken by object to fall is 17.4 s.
● Two balloons with the same amount of charge repel each other with 0.0648 N
of force when held at a separation distance of 28.2 cm. Determine the
quantity of charge on the balloons. (Use k = 9x10⁹ Nm²/C²)
Answers
The magnitude of the charge that is carried by each of the balloons is 7.6 *10^-7 C.
What is Coulomb's law?The link between the electric charges of two objects and the force acting between them is described by Coulomb's law, a fundamental principle of electrostatics.
We know that according to the Coulomb's law we can be able to write that;
F = Kq^2/r^2
k is a proportionality constant called Coulomb's constant, which has a value of approximately 9 x 10^9 N·m^2/C^2 in a vacuum.
0.0648 = 9x10⁹ q^2/(0.079524)
q = √0.0648 (0.079524)/9x10⁹
q = 7.6 *10^-7 C
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