Answer:
The fastest satellite must change orbit
The most massive body (m₁) transfers more momentum to the satellite,
Explanation:
For this problem we consider a system formed by the satellite and each of the bodies with which it collides, in this system the forces during the collision are internal, the amount of movement must be conserved. Let's write the momentum is two instants
Most massive body (m1)
initial. Before the crash
p₀₁ = M v + m₁ v₁
after the crash
\(p_{f1}\) = M v´ + m₁ v₁´
how momentum is conserved
p₀ = p_{f}
Lighter body (m2)
p₀₂ = M v + m₂ v₂
p_{f2} = M v´ + m₂ v₂´
Let's clarify that the speed of the satellite and the object do not have the same direction, in general these shocks are elastic.
We can see that p₀₁> p₀₂
Let us analyze the two cases when the body collides, The most massive body (m₁) transfers more momentum to the satellite, therefore there must be a greater change in its momentum and velocity.
The fastest satellite must change orbit, thus rotating at a different distance from Earth
What doesn't H2O stand for
Answer:
Water
Explanation:
do humans have the right to alter and colonize unique environments on another planet? explain your answer.
Answer:
We may have people making habitats on asteroids ... I know that humans will colonize the solar system and one day go beyond. Richard Gott has estimated that the human race could survive for another 7.8 million years, but it is not likely to ever colonize other planets.
To be sure there are many daunting challenges facing prospective space colonists such as protection from exposure to deadly radiation levels, the impact on the human body while living and working in cramped, low-gravity environments for extended periods of time and the psychological toll of isolation and confinement.
According to me we can't colonize other planets which is against humanity
A device for acclimating military pilots to the high accelerations they must experience consists of a horizontal beam that rotates horizontally about one end while the pilot is seated at the other end. In order to achieve a radial acceleration of 29.9 m/s2 with a beam of length 5.33 m , what rotation frequency is required
Answer:
Rotation frequency is 0.377 hertz.
Explanation:
After a careful reading of statement, we need to apply the concept of radial acceleration due to uniform circular motion, whose formula is:
\(a_{r} = \omega^{2}\cdot L\) (Eq. 1)
Where:
\(a_{r}\) - Radial acceleration, measured in meters per square second.
\(\omega\) - Angular velocity, measured in radians per second.
\(L\) - Length of the beam, measured in meters.
Now we clear the angular velocity within:
\(\omega = \sqrt{\frac{a_{r}}{L} }\)
If \(a_{r} = 29.9\,\frac{m}{s^{2}}\) and \(L = 5.33\,m\), the angular velocity is:
\(\omega = \sqrt{\frac{29.9\,\frac{m}{s^{2}} }{5.33\,m} }\)
\(\omega \approx 2.368\,\frac{rad}{s}\)
The frequency is the number of revolutions done by device per second and can be found by using this expression:
\(f = \frac{\omega}{2\pi}\) (Eq. 2)
Where \(f\) is the frequency, measured in hertz.
If we know that \(\omega \approx 2.368\,\frac{rad}{s}\), then rotation frequency is:
\(f = \frac{2.368\,\frac{rad}{s} }{2\pi}\)
\(f = 0.377\,hz\)
Rotation frequency is 0.377 hertz.
1. Two point charges, q1 and q2, are located 5 cm apart. The magnitude of q1 is 3 μC and the magnitude of q2 is -5 μC. What is the force between these charges, according to Coulomb's law?
The force between these charges, according to Coulomb's law would be -54 N.
We can solve this problem applying "Coulomb's Law" which states-
\(\qquad\:\sf \underline{F_{(air)} = K\times \dfrac{ q_1 q_2}{r^2}} \\ \)
\( \qquad\sf\underline{F_{(air)} = \dfrac{1}{4\pi \epsilon_{0} } \dfrac{q_1q_2}{r^2} }\\ \)
Where-
q₁ and q₂ are the two cahrges.r is the distance between the charges.\(\sf \epsilon_{0} \) is the permittivity of free space.K is the Coulomb's Constant.k = 9×10⁹ Nm²/C²According to the given parameters -
Magnitude of q₁= 3 μCMagnitude of q₂= -5 μCDistance,r = 5cmNow that required values are given, so we can plug the values into the formula and solve for Force -
\(\qquad\qquad \:\sf\underline{Force = \dfrac{1}{4\pi \epsilon_{0} } \dfrac{q_1q_2}{r^2} }\\ \)
\( \longrightarrow \sf Force = 9\times 10^9 \times \dfrac{ 3\times 10^{-6}\times -5 \times 10^{-6}}{\bigg(5\times 10^{-2}\bigg)^2}\\ \)
\( \longrightarrow \sf Force = -\dfrac{9\times 5\times 3\times 10^{9} \times 10^{-12}}{25\times 10^{-4}}\\ \)
\( \qquad\longrightarrow \sf Force =- \dfrac{135 \times 10^{9-12+4}}{25}\\ \)
\( \qquad\longrightarrow \sf Force = - \dfrac{\cancel{135}}{\cancel{25}}\times 10\\ \)
\( \qquad\longrightarrow \sf Force = -5.4 \times 10\\ \)
\( \qquad\qquad\longrightarrow \sf \underline{Force = \boxed{\sf{-54 N}}} \\ \)
Henceforth, The force between these charges, according to Coulomb's law would be -54 N.WHAT IS THE MEAING OF- Grouping Data
Grouping data refers to the process of categorizing or organizing data based on specific criteria or attributes.
It involves grouping similar data points together to gain a better understanding of patterns, relationships, and trends within the dataset. By grouping data, you can simplify complex information and derive meaningful insights from large amounts of data. The purpose of grouping data is to create subsets or clusters that share common characteristics.
This enables easier analysis, summarization, and comparison of data within each group. Grouping can be performed on various types of data, such as numerical, categorical, or time-based data. Grouping data allows for the exploration of data at different levels of granularity.
For example, you can group sales data by region to analyze regional performance, or group customer data by demographics to identify specific customer segments. This process helps in identifying outliers, detecting patterns, and making data-driven decisions.
Common techniques for grouping data include using functions like GROUP BY in SQL or utilizing data visualization tools to create charts or graphs that illustrate the grouped data. Grouping can be applied in various fields, such as marketing, finance, healthcare, and research, to uncover insights and support decision-making processes.
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Question 1 of 10 The energy diagram shows the changes in energy during a chemical reaction. Which statement best describes the total energy change of the system? Potential energy Reaction progress O A. Energy is absorbed, and the products have higher potential energy. O B. Energy is absorbed, and the reactants have higher potential energy C. Energy is released, and the reactants have higher potential energy. O D. Energy is released, and the products have higher potential energy.
Answer: The Answer is C
Explanation:
I just got this question and took a guess I got it correct lol. Higher potential energy and energy is released.
The statement which best describes the total energy change of the system is energy is absorbed, and the reactants have higher potential energy.
What is potential energy?Potential energy is the energy which a body posses because of its position. The potential energy is the stored energy.
The energy diagram shows the changes in energy during a chemical reaction.
Potential energy and Reaction progress are shown in the problem. The reactants are the substance which reacts and form one or more than one product.
The reactants in a chemical reaction increases the potential energy for the reaction.
Thus, the statement which best describes the total energy change of the system is energy is absorbed, and the reactants have higher potential energy.
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Calculate the following:How much energy is released by the conversion of 4.2 x 10^-5 kg of mass to energy?How much mass must be converted to energy to produce 1.00 J of energy?
For the fist part:
\(\begin{gathered} E=mc^2 \\ m=4.2\times10^{-5}kg \\ c=3\times10^8m/s \\ so: \\ E=(4.2\times10^{-5})(3\times10^8) \\ E=3.8\times10^{12}J \end{gathered}\)For the second part, we need to solve for m:
\(\begin{gathered} m=\frac{E}{c^2} \\ so: \\ m=\frac{1}{(3.8\times10^8)^2} \\ m=1.11\times10^{-17}kg \end{gathered}\)why does pure water increase in volume when heated
Answer:
Pure water increases in volume when heated due to the phenomenon of thermal expansion. When water is heated, the kinetic energy of its molecules increases, causing them to move faster and spread out. This increased molecular movement leads to an increase in the average distance between water molecules, resulting in an expansion of the water.
Explanation:
.......
Two cars approach each other from opposite directions each
with a velocity of 54 km/h. One of the cars emits a note of frequency 480 Hz. What will be the approximate frequency
heard in the other car before they cross each other?
Answer:524 Hz
Explanation:
Approximate frequency, heard in other car, when two car approaches each other, before they cross each other is 524 Hz.
What is frequency?Frequency of wave is the number of waves, which is passed thorough a particular point at a unit time.
For the two cars approaching each other the Doppler formula to find the frequency of second car is given as,
\(f_2=\dfrac{V_s+V_2}{V_s-V_1}f_1\)
Here, \(V_s\) is the speed of the sound.
Two cars approach each other from opposite directions.The velocity of car one is 54 km/h and the velocity of the car two is also 54 km/h.
Convert the unit of velocity of the car as,
\(\rm 54km/s=54\times\dfrac{5}{18}m/s\\\rm 54km/s=15m/s\)
As we know that the speed of the sound is 340 m/s and one of the cars emits a note of frequency 480 Hz.
Thus, putting the values in the above formula to find out the frequency heard in the other car before they cross each other as,
\(f_2=\dfrac{340+15}{340-15}480\\f_2=524.3\rm Hz\)
The approximate frequency heard in the other car before they cross each other is 524 Hz.
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What is an electrical circuit?
A. It is a closed path through which current can flow.
B. It is a loop that provides no resistance at room temperature.
C. It is an open loop that does not permit current flow.
OD. It is a region of accumulation of excess charge.
Answer:
A
Explanation:
It can be a circuit if it's not closed
You shoot a laser beam at the moon and see the reflected beam 2.56 seconds later. How far away is the moon?
The distance to the Moon is approximately 383,022.72 kilometers.
To determine the distance to the moon based on the time it takes light to travel, we can use the speed of light as a constant. The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s). Here is how we can calculate the distance to the moon:
With regard to it regarding to it:
Time taken for the reflected beam to return = 2.56 seconds
Speed of light in vacuum = 299,792 km/s
To find the distance to the moon, we need to take into account the time it takes for the laser beam to travel to the moon and back. Since the reflected ray travels the same distance twice, we divide the total time by 2:
One way travel time = 2.56 seconds / 2 = 1.28 seconds.
Next, we can use the formula:
Distance = speed x time
Distance = 299,792 km/s × 1.28 seconds
Distance ≈ 383,022.72 kilometers.
It is important to note that this calculation provides an approximate value, as the distance to the Moon may vary slightly due to its elliptical orbit around the Earth. However, the result obtained using this method gives a good estimate of the average distance.
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A glider of length 12.4 cm moves on an air track with
constant acceleration (Fig P2.31). A time interval of 0.628 s
elapses between the moment when its front end passes a
fixed point A along the track and the moment when its
back end passes this point. Next, a time interval of 1.39 s
elapses between the moment when the back end of the
glider passes the point A and the moment when the front
end of the glider passes a second point B farther down the
track. After that, an additional 0.431 s elapses until the
back end of the glider passes point B. (a) Find the average
speed of the glider as it passes point A. (b) Find the acceleration
of the glider. (c) Explain how you can compute the
acceleration without knowing
the distance between points A
and B.
\(19.7cm/s and 4.70 cm/s^2\) are the average speed and acceleration of the glider.
(a) As the glider's front end crosses point A, start a timer at t=0. The instantaneous speed at t=0.314s, halfway through the time interval, is \(12.4cm/(0.628s)=19.7cm/s\), which equals the glider's average speed for the interval between t=0 and t=0.628s.
(b) The instantaneous speed at the point \(t=(2.02+2.45)/2=2.23s\). is equal to \(12.4cm/(0.431s)=28.8cm/s\), which is the average speed of the glider for the time span between \(0.628+1.39=2.02s\) and \(0.628+1.39+0.431=2.45s\).
Now that we are aware of the velocities at two points, we can calculate the acceleration using the formula \([(28.8-19.7)cm/s]/[(2.23-0.314)s]=4.70cm/s2\).
(c) The average velocity over a predetermined period of time is determined using the glider's length rather than the distance between points A and B.
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what is kinematics ?
name its father and explain its history !
ty ~
Hello There!!
1st QuestionWhat is kinematics?Answer=> Let The Answer be "x"
________________________________
2nd questionName it's fatherAnswer=> He don't have a child so he is not a father
________________________________
3rd QuestionExplain its HistoryAnswer=> Kinematics is a part of science not history.
__________________________________
Hope this helps :D
Answer:
i just wrote this much hope it will help u little
Explanation:
kinematics is the branch of physical which deals with the study of motion as the function of time.Frank reuleaux is known as the father of kinematics.the word *kinematics" comes from a greek word "kinesis" meaning motion.
the induction of ltp at glutaminergic synapses appears to require the depolarization of the postsynaptic neuron.
The process of induction of LTP at glutaminergic synapses appears to require the depolarization of postsynaptic neurons is called the postsynaptic phenomenon.
Postsynaptic potential (PSP), is a transient change in the electrical polarization of nerve cell (neuron) membranes. As a result of the chemical transmission of nerve impulses at synapses (neuronal connections), postsynaptic potentials can lead to the initiation of new impulses. Postsynaptic potentials are graded potentials and should not be confused with action potentials, but their function is to initiate or inhibit action potentials. They are triggered by presynaptic neurons releasing neurotransmitters from terminal boutons at the ends of axons into the synaptic cleft. This will produce the LTP at the glutaminergic synapses.
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What strength of magnetic field is used in a cyclotron in which protons make 2.8×10^7 revolutions per second?
The magnetic field in the cyclotron, is 0.292 T.
Angular velocity, ω = 2.8 x 10⁷rev/s
Charge of a proton, q = 1.6 x 10⁻¹⁹C
Mass of a proton, m = 1.67 x 10⁻²⁷kg
A cyclotron is a device that strongly accelerates the charge on charged particles or ions. The cyclotron amplifies the energy of the charged particles through the application of both magnetic and electric fields.
The expression for the angular velocity of the cyclotron is given by,
ω = qB/m
Therefore, the magnetic field in the cyclotron,
B = ωm/q
B = 2.8 x 10⁷x 1.67 x 10⁻²⁷/1.6 x 10⁻¹⁹
B = 0.292 T
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A 0.38 kg drinking glass is filled with a hot liquid. The liquid transfers 7032 J of energy to the glass. If the
temperature of the glass increases by 22 K, what is the specific heat of the glass?
Answer:
841 J/kg.K
Explanation:
The computation of the specific hear of the glass is shown below:
As we know that
E= cmΔt
where
c denotes specific heat
m denotes 0.38 kg
Δt = temperature = 22k
E denotes energy = 7032 J
Now
7032 J = (0.38) (22) (c)
7032 J = 8.36 (c)
So C = 7032 J ÷ 8.36
= 841 J/kg.K
Inside a vacuum tube, an electron is in the presence of a uniform electric field with a magnitude of 320 N/C. (a) What is the magnitude of the acceleration of the electron (in m/s2)? (b) The electron is initially at rest. What is its speed (in m/s) after 8.50 ✕ 10−9 s?
(a) The magnitude of the acceleration of the electron is 5.62 x 10¹³ m/s².
(b) The speed of the electron after the given time is 4.78 x 10⁵ m/s.
Acceleration of the electronThe acceleration of the electron is calculated as follows;
F = qE
ma = qE
a = qE/m
a = (1.6 x 10⁻¹⁹ x 320)/(9.11 x 10⁻³¹)
a = 5.62 x 10¹³ m/s²
Speed of the electronv = at
v = 5.62 x 10¹³ m/s² x 8.50 x 10⁻⁹ s
v = 4.78 x 10⁵ m/s
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A 3.00kg mass is attached to an ideal spring with k=200N\m if the velocity of body at 0.25m Is 2.3m\s find the amplitude and maximum velocity
To solve this we must be knowing each and every concept related to velocity. Therefore, the amplitude and maximum velocity are 0.23 m and 2.75 m/s respectively.
What is velocity?V is the velocity measurement of an object's rate of motion and direction of motion. As a result, in order to calculate velocity using this definition, we must be familiar with both magnitude and direction.
For example, if an item travels west with 5 meters a second (m/s), its velocity to the west will be 5 m/s. The most frequent and simplest approach to determine velocity is using the formula shown below.
v = √(k / m) ×A
v = velocity of the mass
k= spring constant
m =mass of the object
A= amplitude of the oscillation.
substituting all the given values in the above equation, we get
2.3 m/s = √(200 N/m / 3.00 kg)×A
A = 2.3 m/s / √(200 N/m / 3.00 kg)
= 0.23 m
v =√(200 N/m / 3.00 kg) ×0.23 m
= 2.75 m/s
Therefore, the amplitude and maximum velocity are 0.23 m and 2.75 m/s respectively.
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How much work is done in pushing an object 7.0 m across a floor with a force of 50 N and then
pushing it back to its original position? How much power is used if this work is done in 20 sec?
Answer:
35/2 J/s
Explanation:
Just use the 2 formulas
Work done = Force * distance moved
Power = Work done/time
WD = 7 * 50 = 350
Power = 350 / 20
= 35/2 J/s
what happen to kinetic energy of a body if it speed is doubled
Answer:
The energy possessed by a body because of its motion, equal to one half the mass of the body times the square of its speed is called its kinetic energy. Hence, when velocity is doubled, kinetic energy becomes 4 times.
Explanation:
Ewww you might use this element to kiss someone
Answer:
Uhm..
Explanation:
What-
Determine the horizontal distance, d in meters, between the waiter and the diner at the time the cork reaches where the diner had previously been sitting.
T=3.12 Sec
Distance d= 9.703m
The distance can refer to a physical length in physics or to an estimate based on other factors in ordinary language (e.g. "two counties over"). It is sometimes used to indicate the distance between two points: display style |AB||AB|. The terms "distance from A to B" and "distance from B to A" are frequently used interchangeably.
It is a generalization of the idea of physical distance. Distance is a non-numerical measurement in psychology and the social sciences; psychological distance refers to how an object feels.
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I need help with this question
Explanation:
a boy walks at 2m/s for 30sec and run at 5m/s for 20sec. what is his average speed
how do rubber bands act like Springs use in a sentence
Answer:
Both springs and rubber bands store potential energy, and the energy turns into kinetic energy when that energy is released.
Explanation:
1. The wave speed of a wave through a medium is equal to the frequency times the wavelength. When the frequency changes, the wavelength must change to compensate. Why can't the velocity of the wave change?
a. The velocity must remain constant to keep the ratio of frequency and wavelength in check
b. The velocity of a mechanical wave is dependent on the medium
c. The wavelength is separate from the velocity, so it can change while the wavelength cannot
d. The velocity of the wave cannot change because it is set by the force that starts the oscillation
2. If a water wave has a velocity of 4.5 m/s and has a frequency of 25 Hz, what is the wavelength of the wave?
a. 0.80 m
b. 5.6 m
c. 0.35 m
d. 0.18 m
a. The velocity must remain constant to keep the ratio of frequency and wavelength in check. The wave speed is determined by the properties of the medium through which the wave travels, and is independent of the frequency and wavelength of the wave.
c. 0.35 m. The wavelength can be calculated using the formula: wavelength = wave speed / frequency. Plugging in the given values, we get wavelength = 4.5 m/s / 25 Hz = 0.18 m/Hz = 0.35 m (rounded to two decimal places).
A spherical balloon is inflating with helium at a rate of 192pi ft^3/min. How fast is the balloon's radius increasing at the instant the radius is ft?
Answer:
3ft/min
Explanation:
Complete question:
A spherical balloon is inflating with helium at a rate of 192pi ft^3/min. How fast is the balloon's radius increasing at the instant the radius is 4ft?
Volume of a sphere = \(V = \frac{4}3}\pi r^3\) where:
r is the radius of the sphere:
Using the chain rule to find dV/dt we have:
\(\frac{dV}{dt} = \frac{dV}{dr} * \frac{dr}{dt}\\\frac{dr}{dt} = \frac{(\frac{dV}{dt})}{(\frac{dV}{dr})}\)
\(\frac{dr}{dt}\) is the rate at which the balloon's radius is increasing
\(\frac{dV}{dt}\)is the rate at which the volume is increasing
Given
\(\frac{dV}{dt} = 192\pi ft^3/min\\\)
radius = 4ft
Required
\(\frac{dr}{dt}\)
From the formula:
\(\frac{dV}{dr} = 3(\frac{4}{3})\pi r^2 \\\frac{dV}{dr} = 4\pi r^2\\\frac{dV}{dr} = 4\pi (4)^2\\\frac{dV}{dr} = 64 \pi cm^3/ft\)
Get \(\frac{dr}{dt}\)
\(\frac{dr}{dt} = \frac{(\frac{dV}{dt})}{(\frac{dV}{dr})}\\\frac{dr}{dt} = \frac{192\pi}{64\pi}\\\frac{dr}{dt} = 3ft/min\)
Hence the balloon radius is increasing at the rate of 3ft/min.
Two atoms of the same element only differ because one of the atoms has more electrons, making it an ion. Which statement is true? They have the same A-number and the same Z-number. They have the same A-number but different Z-number. They have a different A-number but the same Z-number. They have different A-numbers and different Z-numbers.
The correct answer is Option B. The statement "they have the same A-number but different Z-number" is true .
Atoms of the same element only differ because one of the atoms has more electrons, making it an ion.
This difference does not affect the mass of the atom, which is determined by the sum of its protons and neutrons, represented by the atomic mass or A-number.
The number of protons in an atom is called the atomic number or Z-number.
The Z-number of an element is unique to it. All the atoms of a given element have the same number of protons.
Thus, for example, all carbon atoms have six protons, making the Z-number of carbon 6.
However, different isotopes of an element can have different numbers of neutrons.
This means that they have a different atomic mass or A-number.
Therefore, they have the same A-number but different Z-number.
Therefore the correct Option is B.
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the concentration of water vapor in the atmosphere known as
A block on the end of a spring is pulled to position x = A and released. In one full cycle of its motion, through what total distance does it travel? A. A / 2 B. A C24 ) 0.4A
The total distance traveled by the block in a one full or complete cycle is 2A.
option C.
What is the total distance travelled by the block?If a block on the end of a spring is pulled to position x = A and released. In one full cycle of its motion, it will travel the following distance as shown below;
x = A cos (ωt)
where;
A is the amplitude of the motionω is the angle speed of the block = 2πft is the period of the motionDuring a half cycle the block will travel a total distance of A.
During another half cycle the block will travel a total distance of A.
The total distance traveled by the block in a one full or complete cycle is calculated as follows;
distance = A + A
distance = 2A
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Fossils show that some animals _____.
are extinct
had not seen rain
liked the cold
made noise
Answer:I think Fossils show that some animals are extinct
Explanation:
Please mark as brainliest for me.Thanks