The method of radiation is faster through a vacuum, the method of convection is faster through a gas and the method of conduction is faster through a solid.
There are three modes of heat transfer:
conduction
convection, and
radiation
Radiation:
The emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles causes ionization. As we know vacuum does not require any medium so radiation is the heat transfer which is faster in a vacuum.
Therefore we get that in vacuum radiation, solid conduction, and gas convection heat transfer is faster.
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Define momentum pls NOW
Given a force of 100 N and an acceleration of 5 m/s/s, what is the mass of the object?
Now that we know F Is 100 N, or 100 kg*m/S, and an Equals 5 m/s2, let's go on. Consequently, m =1 20 kg. Thus, the object's mass is 20 kg.
How much does a thing weigh?An object's mass is a fundamental characteristic, a quantifiable representation of its inertia, and a fundamental indicator of the volume of substance inside the thing. Mass is such a basic quantity that it is challenging to define in terms of another, which is why definitions of it frequently seem circular.
How can one calculate an object's mass?Use the perfectly match, where m represents mass and v is volume, to determine an object's mass. Therefore, if the volume is 10 bcm and the density of the object equals 500 kilos per cubic meter, the equation would be 500=m/10.
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A polar bear walks 40 meters North, then 20 meters East , then 40 meters south. The bear completes his trip in 10 seconds. what is the bear's total distance traveled ?
The total distance travelled is 100 m.
What is the total distance traveled ?We know that distance is a scalar quantity. Let us note that scalar quantities are the quantities that do not have a direction rather they do have magnitude. This is where the vector is different from the scalar quantity in physics.
Looking at this description, we are told that the polar bear walks 40 meters North, then 20 meters East , then 40 meters south. We can see that the total distance can be obtained by the addition of all the distances travelled.
Total distance travelled is; 40 + 20 + 40 = 100 m
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in a particular wire in a circuit, conventional current flows in the y direction. what is the direction of the magnetic field due only to the wire just above (in the z direction) the wire?
The Right Hand Thumb Rule, which asserts that if the thumb is kept pointing in the direction of the current, the curl of the other fingers indicates the direction of the magnetic field, is along the eastern direction if the current is flowing to the north.
What do you understand from right hand thumb rule?The right hand rule is a hand mnemonic in physics that is used to remember which way three-dimensional axes or parameters point. The right hand rule was developed in the 19th century by British physicist John Ambrose Fleming for electromagnetism applications. When the other two parameters are known, it is most frequently employed to identify the direction of the third parameter (magnetic field, current, magnetic force).
The right hand rule has a few modifications, which are described in this section. A conductor, like a copper wire, induces an electric current when it passes through a magnetic field (B). Faraday's Law of Induction is the name given to this phenomenon.
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how many times more gravitational potential energy would the same lander have on top of a 350-m hill on earth?
The same lander's gravitational potential energy on top of a 350-meter hill on Earth would be 6.
What is gravitational potential energy?The law of gravity gives rise to the generic term for gravitational potential energy, which is equal to the effort made to defy gravity in order to move a mass to a specific location in space. It makes logical to choose the gravitational potential energy zero at an infinite distance away because, due to the inverse square nature of the gravity force, the force approaches zero for huge distances. Since gravity performs positive work as a mass approaches a planet, the gravitational potential energy is then negative.When a mass approaches a huge body, it enters a "bound state," where it is trapped until an external source of energy enables it to break free. The gravitational potential energy of mass m has the following general form: [tex]U= \frac{-GMm}{r}[/tex]Where r is the distance between their centers, M is the mass of the attracting body, and G is the gravitational constant.This is the gravitational potential energy representation that can be used to determine an object's escape velocity from the pull of the earth's gravity.To learn more about gravitational potential energy, refer to
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What is the kinetic energy of a car that has a mass 2,000 kg and has a velocity of 10 m/s?
The Kinetic Energy of the given body is 100,000
Kinetic energy is the energy possessed by a body as a virtue of its motion or movement. It is defined under Mechanical energy.
The mechanical energy of a body is always conserved. Potential energy along with Kinetic energy maintains the mechanical energy of a body.
If talking solely about mechanical energy the dip in one leads to a rise in the other.
The potential energy of a body is the energy possessed by the virtue of its position in distance from the surface of the Earth.
The formula of Potential energy is=mgh
where h is the distance from the surface of the earth where the body is placed
while g is the gravitational force exerted by the earth on the body
The formula of Kinetic Energy is: 1/2xmx[tex]v^{2}[/tex]
m=2000kg (Provided in the question)
v=10m/s (Provided in the question)
Then Kinetic Energy of the body=1/2x m x [tex]v^{2}[/tex]
putting values in the equation
K.E=1/2 x 2000 x [tex]10^{2}[/tex]
K.E=1/2 x 2000 x 100
canceling 2000 by 2
K.E = 1000 x 100
K.E= 100,000
Where Kinetic energy is represented as K.E
Thus, the Kinetic Energy of the given body is 100,000
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Astronauts in training are subjected to extreme acceleration forces bu the centripetal forces in a gaint centrifuge. a, calculate the approximate centripetal force an on astronaut of mass 80 kg if the centrifuge rotates once 2 second. b, approximately how many times greater than the astronaut weight is this force?
In a massive centrifuge, centripetal forces accelerate trainee astronauts to extremely high speed is 49.3 frac ms2 and 5.
How much weight is an astronaut under this force?During a rocket launch, an astronaut's maximum g-force is typically around 3gs. The passengers can withstand this, which is equivalent to three times the gravity that people experience while they are on Earth.
a)a c=omega2 r=frac4 pi 2 r, T2=49.3 frac ms2, and a c = 2 r= T 2
4π \s2 \s r \s \s =49.3 \ss \s
m \s \s ,
b)frac = k=F aP=\frac{a c}
g=5.k= P \sF \s\s = \sg \sa \ \s =5.
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a 40-kg crate is being lowered with a downward acceleration is 2.0 m/s 2 by means of a rope. (a) what is the magnitude of the force exerted by the rope on the crate? (b) what would be the magnitude of the force exerted by the rope if the crate were being raised with an acceleration of 2.0 m/s 2?
a) Force exerted by the rope on the crate is equal to 312 N.
b) Force exerted by the rope if the crate were being raised with an acceleration of 2.0 m/s² is 472N.
What is force?In science, a force is a push or a pull in a specific direction. When one object interacts with another object, forces are created.
In physics, arrows are used to represent forces. An arrow pointing in the same direction will indicate the force's direction.
Given,
mass of a crate, m = 40 kg
Acceleration of crate, a = 2 m/s²
a) As carte is falling down, net force exerted by rope on the carte is given by : F = m(g-a)
F = 40(9.8-2)
F = 312 N
∴ required force exerted by the rope on the crate is equal to 312 N.
b) If the crate was raised with an acceleration of 2.0 m/s², than:
F = m(g+a)
F = 40 (9.8 + 2)
F = 472 N
∴ required force exerted by the rope if the crate were being raised with an acceleration of 2.0 m/s² is 472N.
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a 500-w device is connected to a 120-v ac power source. what is the peak voltage across this device? a) 4.2 v b) 5.9 v c) 120 v d) 150 a e) 170 v
The peak voltage across this device would be 170v (rounded). So the answer is E.
What is peak voltage?It is the highest point or highest value of voltage for any voltage waveform. It is a power quality issue that occurs when devices that use Pulse Width Modulation, such as a variable frequency drive, is added to a power system. The resulting peak voltage is a result of the switching speed and length of cable (increasing impedance).
Now, we need to find the peak voltage based on the information given from the question.
Vrms = 120V (given)
the formula is Vrms = Vpeak / [tex]\sqrt{2}[/tex]
Vpeak = [tex]\sqrt{2[/tex]Vrms
= [tex]\sqrt{2}[/tex] * 120
Vpeak = 170v (rounded)
So, the peak voltage of this device would be (E) 170v.
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Translates into algebraic language: The quotient of the difference of two numbers between their product.
Hello..!
Algebraic language
It is a symbolic way of expressing mathematical relationships with numbers, letters, and symbols.
We translate the statement into algebraic language:
The quotient of the difference of two numbers between the product of them.
The quotient: refers to a division.The difference: indicates a subtraction.Two numbers: let the two numbers be “a” and “b”.Product: denotes a multiplication.The algebraic expression would become:[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \blue{\boxed{ \bold{\boxed{ \bold{\bf \dfrac{a-b}{a \cdot b}}}}}}[/tex]
at the instant you pass through the equilibrium position of the spring, you drop the sandbag out of the cart onto the ground. part a what effect does dropping the sandbag out of the cart at the equilibrium position have on the amplitude of your oscillation?
Dropping sandbags does not change cart speed. After the bag drops no energy leaves the system, so the cart always returns to the equilibrium point with the same kinetic energy and thus the same maximum velocity.
This means that the equilibrium position of the horizontal spring is independent of the mass attached to it. For example, if a spring is replaced with a rigid spring of the same natural length, the same considerations apply. That is, the equilibrium position does not change. The duration of the pendulum does not depend on the mass of the weight.
Changing the concentration of something in equilibrium does not change the equilibrium constant. The only thing that changes the equilibrium constant is a change in temperature. Changing the concentration of something in the mixture changes the position of the equilibrium.
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if you run the wire through a strong horseshoe magnet, subjecting 5.00 cm of it to a perpendicular 1.75 t field, what force is exerted on the segment of wire in n?
According to the given statement 17.15 N force is exerted on the segment of wire in n.
How would you define magnitude?Magnitude is essentially "distance or quantity" in the context of physics. In terms of motion, it shows the absolute and relative size, direction, or movement of an object. It is used to describe there is something volume or scope. Quantity in physics typically refers to a size or quantity.
Briefing:The magnitude of the magnetic force on a conducting wire of length I carrying current II, and making an angle θ with a magnetic field of strength B is given by:
[tex]$|\vec{F}|$[/tex] = I l B sin 0
Rearranging to get the current:
I = [tex]$|\vec{F}|$[/tex]/ lB sin0
= 7 * 10⁻³ / 0.75 * (5.5 * 10⁻⁵)sin60
= 195.95 A
[tex]$|\vec{F}|$[/tex] = I l Bsin0
= (195.95)(0.05)(1.75)sin90
=17.15 N
I = 195.95 I
[tex]$|\vec{F}|$[/tex] = 17.15 N
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55.two objects with different masses are sitting on the same shelf. which object has a higher mechanical energy?
When two objects with different mass are sitting on the same height ,the object with higher mass has more kinetic energy.
Higher the mass of the object higher the gravitational energy.It is the sum of potential energy and kinetic energy, It is the energy of an object either in motion or the energy that is stored in objects by their position.
Eg =mgh
Where ,m=mass
g= gravitational field
h= height
When an object is lifted it has gravitational potential energy.when it is dropped it begins to lose it,then form kinetic energy.
Eg (initial) =Ek (final)
So, the object with higher mass has high kinetic energy.
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the total rms current of the input current to a rectifier is 5 a. the fundamental current has an rms value of 3a. what is the rms value of the distortion current? idist
The distortion current is then equal 0.826 A.
The total rms current of the input current to a rectifier is 5 A. The fundamental current has an rms value of 3 A.
The fundamental current and distortion current are both made up of harmonics. We can find their values by taking the square root of their respective rms values:
5 A = 1/√5
= 2.23 A
3 A = 1/√3
= 1.333 A
The distortion current is then equal to 1.333 * √2 = 0.826 A
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what happens to the speed of a molecule when it hits an oncoming faster molecule? when it hits a receding one?
When it hits a receding one, its rebound speed is reduced.
What is the speed of the molecules?To compute a few more gas properties, the kinetic theory of gases is a little more expanded. It is discovered that the average velocity of a gas molecule is approximately the speed of sound. The pressure is caused by the gas molecules' collisions with the container's walls. The ideal gas model presupposes that the gas molecules are, on average, so far apart that they do not collide. The average separation between collisions (also known as the "mean free path") between gas molecule collisions will be determined.Diffusion, viscosity, and thermal conductivity are only a few of the properties of a gas that are influenced by molecular collisions. A fluid's "stickiness" is determined by its viscosity, while diffusion determines how quickly, for example, an ink drop spreads out in a glass of water. The application of the kinetic theory of gases will be illustrated with a straightforward formula for the diffusion coefficient.To learn more about speed of molecules, refer to
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an empty beaker is weighed and found to have a mass of 130g. a measuring cylinder contains 50cm3 of an unknown liquid. all the liquid is poured into the beaker which is again weighed and found to have a mass of 170 g. calculate the density of the liquid.
Taking into account the definition of density, the density of the liquid is 0.8 g/cm³.
Definition of densityDensity is defined as the property of matter, whether solid, liquid, or gas, that allows the amount of mass in a given volume of a substance to be measured.
The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
density= mass÷ volume
It can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.
Density of the liquidIn this case, you know that:
Density= ?Mass of the empty beaker= 130 gMass of liquid + Mass of the empty beaker= 170 gMass of liquid= (Mass of liquid + Mass of the empty beaker) - (Mass of the empty beaker)= 170 g - 130 g= 40 gVolume= 50 cm³Replacing in the definition of density:
density= 40 g÷ 50 cm³
Solving:
density= 0.8 g/cm³
In summary, the density in this case is 0.8 g/cm³.
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a parallel-plate capacitor with a dielectric inserted is connected to a battery and allowed to fully charge. a second identical capacitor but with a dielectric of only half the dielectric constant as the previous is connected to an identical battery and allowed to fully charge. how do the two capacitors compare in terms of capacitance, electric potential, charge stored, and energy stored? justify with reasoning.
The capacitance and electric potential of the two capacitors are identical.
The charge stored and energy stored are also identical, as are the two capacitors' dielectrics.
The reason for this is that both capacitors have the same area, which is equal to the product of their radii multiplied by the distance between them. The two capacitors also have the same charge per unit area. So when you divide one by the other, you get a ratio of 1:1. This means that regardless of which capacitor you choose, it will store an equal amount of energy.
Additionally, if you choose to measure your capacitance by dividing your electric potential by your charge per unit area, then again, both capacitors will have identical values for this metric as well.
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suppose this experiment were done on the moon, where the acceleration of gravity is approximately 1/6 of that on the earth. how would this change the frequency of the oscillation?
Since frequency, in physics, is the number of waves passing a fixed location in a unit of time, it would remain constant.
How and why is frequency used?In science and engineering, frequency is a crucial characteristic for describing the temporal rate of change seen in oscillatory or periodic phenomena including mechanical motion, audio signals (sound), radio waves, or light.
Why do frequencies occur?Frequency of a wave is defined as the total number consecutive waves generated in a second. Frequency is the measurement of the number of vibrations per second. As an example, consider the following: If five full waves are created in a second, their frequency is 5 hertz (Hz), meaning 5 cycles per second.
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A sweptwing airplane with weak static directional stability and increased dihedral causes an increase in...A. Mach tuck tendencyB. Dutch roll tendencyC. Longitudinal stability
A sweptwing airplane with weak static directional stability and increased dihedral causes an increase in Dutch roll tendency. Option B.
Increasing speed increases the air flowing over and under the wing. An increase in the relative wind influence on the underside of the wing creates a large amount of air that is deflected downward, creating more lift. This is because the outer wing travels a longer distance than the inner wing, but both complete their rotation in the same amount of time.
As a result, the outer wing flies faster than the inner wing creating more lift. Since the bottom surface of the airfoil has a larger radius of curvature than the top surface, lift begins to increase with the angle of attack. Therefore the pressure gradient is downward. This means that the lower surface has a higher pressure than the upper surface and the wing receives a lift.
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When a tennis racket hits a tennis ball, the time needed for the racket to change the ball's direction by imparting an impulse (the product of the average force on an object and the time interval over which it acts) to it is extremely ____
When a tennis racket hits a tennis ball, the time needed for the racket to change the ball's direction by imparting an impulse to it is extremely low.
When a tennis ball is served, it is a contact with the racket for a time that is typical 0.005 seconds which is less than a hundredth of a second. The force provided by the racket is extremely high. So, the interval of time for which the force applied need not be high to change its direction.
I = F Δt
F = m a
F = m Δv / Δt
F Δt = m Δv
I = m Δv
I = Impulse
F = Force
m = Mass
a = Acceleration
Δv = Change in velocity
Δt = Change in time
Therefore, when a tennis racket hits a tennis ball, the time needed for the racket to change the ball's direction by imparting an impulse to it is extremely low.
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an ideal spring is used to stop blocks as they slide along a table without friction. a 0.90 kg block traveling at a speed of 2.4 m/s can be stopped over a distance of 0.14 m once it makes contact with the spring. a rectangular block on a level surface moves at velocity v to the right towards a spring that rests on the surface and is attached to a fixed mount on the right. what distance would a 1.15 kg block travel after making contact with the spring if the block is traveling at a speed of 3.6 m/s before it makes contact with the spring?
The distance moved by the block as follows by using Law of conservation energy is 0.0173N/m.
Apply law of conservation energy is,
1/2m1v1^2 = 1/2 k1x1^2
k1 = m1 v1^2/x1^2
=117.5 N/m
1.15 Kg block :-
1/2m2v2^2 = 1/2 k1x2^2
x2 =[tex]\sqrt{m2v2^{2} }[/tex]/ k1
x2 = 0.0173 N/m
According to the law of conservation of energy, a system that isn't connected to any other system has a fixed amount of total energy that is considered to be preserved over time. Energy cannot be created or destroyed; it can only be transformed or transferred from one form to another, Traditionally, conservation of mass and energy were separate concepts. However, special relativity demonstrated how mass and energy are related to one another through the equation E = mc2, and as a result, science now holds that mass-energy are conserved as a whole. This implies that any mass-containing object can theoretically transform into pure energy and vice versa. However, it is thought that this is only feasible under the most extreme physical circumstances, such as those that probably existed in the universe right after the Big Bang or when black holes emit Hawking radiation.
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astronauts connect a line between their 3200-kg spaceship and a 7700-kg asteroid. using the ship's engine, they pull on the asteroid with 620 n of force. if the asteroid and the ship are initially 450 meters apart, how long does it take for the ship and asteroid to meet?
As the spaceship pull the asteroid with 620 N of force, they will meet after 105.4 seconds.
The gravitational force between the ship and the asteroid is very small compared to the force caused by pulling the asteroid. Hence, we can assume that the only force applied on the asteroid is the pulling force.
Using the Newton 2nd Law of motion:
F = m . a
Where
F = pulling force = 620 N
m = mass of the asteroid = 7700 kg
a = acceleration
Hence,
a = F/ m = 620 / 7700 = 0.081 m/s²
Using the equation of motion:
s = 1/2 . a t²
Where:
s = distance = 450 meters
t = time
Hence,
450 = 1/2 . (0.081) t²
t² = 11,111.11
t = 105.4 seconds
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what is the relationship between the incident and reflected angles of a beam of light with different types of mirrors?
The relationship between the incident and reflected angles of a beam of light with different types of mirrors that both the angles are equal
According to the law of reflection, the angle of incidence equals the angle of reflection. Irrespective of mirror , whether it is a concave mirror , convex mirror or plane mirror , this law remain same in all condition where the incident angle is always equal to reflected angle .
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If the X-component of the momentum is 460000 Kg.m/s and the Y-component is
230000 Kg.m/s. Find the magnitude of the momentum [r].
The the magnitude of the momentum is 514295 Kg·m/s.
What is momentum?Momentum is the product of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude and direction.
Given parameters:
X-component of the momentum : Pₓ = 460000 Kg.m/s
Y-component of the momentum : [tex]P_Y[/tex]= 460000 Kg.m/s
We have to find; the magnitude of the momentum : P = ?
We know that momentum is vector quantity and the magnitude of the momentum : P = √( Pₓ² + [tex]P_Y[/tex]²)
= √(460000² + 230000²) Kg.m/s .
= 514295 Kg·m/s .
Hence, the the magnitude of the momentum is 514295 Kg·m/s.
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A steel bar has a width of 10 cm at 50oC At what temperature will it fit exactly into a hole of constant width 10.005 cm if coefficient of linear expansion of steel is 11x10-6 C-1)? A. 75oC B. 0.005oC C. 75.5oC D. -75.50C
The temperature at which the bar will fit exactly into a hole of constant width 10.005 cm if coefficient of linear expansion of steel is 11x10-6 C-1 is 95.5 °C
Δ L = L - Lo
Δ T = T - To
Δ L = Change in length
L = Initial length
Lo = Final length
α = Co-efficient of linear expansion
Δ T = Change in temperature
T = Initial temperature
To = Final temperature
L = 10 cm
Lo = 10.005 cm
T = 50 °C
Δ L = - 0.005 cm
α = 11 * [tex]10^{-6}[/tex] / °C
Δ L / L = α Δ T
Δ L / α L + T = To
To = ( - 0.005 ) / 11 * [tex]10^{-6}[/tex] * 10 + 50
To = 45.5 + 50
To = 95.5 °C
Therefore, the temperature at which the bar will fit exactly into a hole is 95.5 °C
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Answer:
The steel bar will fit exactly into the hole at a temperature of 95.45°C.
Explanation:
To find at what temperature the steel bar will fit exactly into a hole of a constant width, use the Linear Expansion equation.
Linear Expansion equation[tex]\boxed{L_1-L_0=L_0 \cdot \alpha \cdot (T_1-T_0)}[/tex]
where:
L₀ is the initial width.L₁ is the final width.α is the coefficient of thermal linear expansion.T₀ is the initial temperature.T₁ is the final temperature.As we want to find the final temperature, rearrange the equation to isolate T₁:
[tex]T_1=\dfrac{L_1-L_0}{L_0 \cdot \alpha}+T_0[/tex]
Given values:
L₀ = 10 cmL₁ = 10.005 cmα = 11 × 10⁻⁶ 1/°CT₀ = 50°CSubstitute the values into the equation:
[tex]\implies T_1=\dfrac{10.005-10}{10 \cdot 11 \times 10^{-6}}+50[/tex]
[tex]\implies T_1=\dfrac{0.005}{0.00011}+50[/tex]
[tex]\implies T_1=95.45^{\circ}\text{C}\; \sf (2\;d.p.)[/tex]
Therefore, the steel bar will fit exactly into the hole of constant width 10.005 cm at a temperature of 95.45°C (to two decimal places).
Note: The answer is not one of the options provided.
you launch a projectile horizontally from a height of 0.85 m. the projectile travels a horizontal distance 1.8 m. with what speed (m/s) did you launch the projectile?
Speed (m/s) required to launch the projectile is 5.94m/s.
What constitutes speed?Speed is defined as the product of distance and the amount of time it took to cover that distance.
Equations,
Vx = Vxo
x = Vx × t
Vy = Vyo + gt
Vyo = 0
Vy = gt
y = yo - Vyo - gt² / 2
yo - y = gt²/ 2
time to get to the ground,
0.85 = g t² / 2
t² = 0.85m × 2 / 9.81 m/s²
t² =0.1732 s²
t = 0.416s.
initial velocity,
Vxo = x / t = 1.8m/ 0.416s =4.32m/s
speed before it strikes the ground,
Vy = g*t = 9.81 m/s × 0.416 = 4.08m/s
V² = Vy² + Vx² = (4.32 m/s)² + (4.08 m/s)² = 35.3064m²/s²
V = [tex]\sqrt{35.3064}[/tex]= 5.94m/s.
Speed required to launch the projectile is 5.94m/s.
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a student suspends a 0.3 kg mass from an ideal spring and measures the equilibrium displacement of the spring to be 5.5 cm. calculate the spring constant.
The value of the spring constant of the ideal spring is 106.9 N/m.
The mass suspended by the student is 0.3 kg from the ideal soring and the equilibrium displacement is 5.5 cm or 0.055 cm.
The work done by the gravity will be equal to the work done by the spring,
Mgx = 1/2Kx²
Where,
x is the equilibrium displacement,
K is the spring constant,
M is the mass,
g is acceleration due to gravity,
Putting values,
0.3 x 9.8 x 0.055 = 0.5 x K x 0.055 x 0.055
K = 106.9 N/m.
The spring constant is 106.9 N/m.
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what will happen to the solar system when the milky way galaxy collides with the andromeda galaxy in billions of years
The solar system when the milky way galaxy collides with the andromeda galaxy in billions of years will likely be unharmed.
For milky way galaxy,
Size = 100000 lightyears acrossNumber of stars = 100 billionType = Spiral galaxyAge = 13.6 billion yearsFor Andromeda galaxy,
Size = 220000 lightyears acrossNumber of stars = 1 trillionType = Spiral galaxyAge = 10 billion yearsWhen these galaxies collide in about 5 billion years from now, the central black hole of Andromeda galaxy with a mass of 100 million suns will swallow up the central black hole of milky way galaxy with a mass of 4 million suns.
Therefore, the solar system when the milky way galaxy collides with the andromeda galaxy in billions of years will likely be unharmed.
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when you measure gravity at any location on this equipotential surface you would get the same result?
There are an infinite number of points where the gravitational potential is always the same. They are called equipotential surfaces. Of course, mean sea level itself is not an equipotential surface.
Forces other than gravity, such as temperature, salinity, ocean currents, and wind, are at work. The size of the gradient vector field (which describes the steepness of the gradient) is not the same for all points on the contour. Therefore, the strength of gravity varies along the geoid, and the geoid is not, as one blogger put it, "the same shape of gravity wherever you stand."
Learn more about gravity here-
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the motor of a ski boat generates an average power of when the boat is moving at a constant speed of 12 . when the boat is pulling a skier at the same speed, the engine must generate an average power of . what is the tension in the tow rope that is pulling the skier?
The tension in the tow rope that is pulling the skier is 5283.33 N
since we are given the average power of 2.74 × 10^4 W., with a speed of 12 m/s. So, the tension acting on the motor at this point is :
P= T X v
T = P/v =2.74 × 10^4/ 12 =2283.33 N
For the second case, the average power is 9.20 × 10^4 W, so the tension will be :T = P/v = 9.20 × 10^4 /12 = 7666.66
so the tension in the tow rope is : 7666.66 -2283.33 = 5283.33 N
To know more about speed refer to the link https://brainly.com/question/7359669?referrer=searchResults.
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the motor of a ski boat generates an average power of 2.74 × 10^4 W when the boat is moving at a constant speed of 12 m/s . when the boat is pulling a skier at the same speed, the engine must generate an average power of 9.20 × 10^4 W. what is the tension in the tow rope that is pulling the skier?
