Answer:
The earth would be destroyed as we know it.
Explanation:
There's actually a utube vid about that.
Answer:
I think that the best question I've heard today
Explanation:
lol I think it would do catastrophic damage
An object moves away from the earth. Consider system A: the object alone, and system B: the object and the earth together. The potential energy for system A _____ and the potential energy for system B _____. Group of answer choices increases, (there is no potential energy for system B) increases, increases (there is no potential energy for system A), increases decreases, (there is no potential energy for system B) (there is no potential energy for system A), decreases decreases, decreases increases, decreases decreases, increases
Answer:
1(B) 2(c)
Explanation:
Some characteristics that are common to metals are that they are good conductors or heat and electricity , are malleable , and are often shiny (Have luster ) in which of the following groups would your expect every element to share these properties
A potassium (K) , chromium (fr) , and tellurium (Te)
B sodium (na), cobalt (Co) , and platinum (Pt)
C ruthenium (Ru) ,cooper (Cu), and radon (rn)
D oxygen (O) fluorine (F) and argon (Ar)
Answer:b
Explanation:
What does it mean to say that the electric current from a wall socket is 120 V AC
Come on! Please answer... :( WILL GIVE BRAINLYEST TO BEST ANSWER!!! PLEASE PLEASE PLEASE PLEASE ANSWER!!!
How do the potential and kinetic energy of the cart change at each point in the diagram?
Answer:
Potential -> Kinetic -> Potential ->
Explanation:
Point A is potential becuase it's stopped (its energy isn't released). Point B is where that potential energy is released and turned into Kinetic energy. And point C is where potential energy is stored again. Same with point D.
Light waves and sound waves have many similar behaviors, such as reflection and refraction. One behavior they do not share is
Answer:
light waves can travel in vacuum but sound waves require a medium to travel
also light waves are electromagnetic waves while sound waves are mechanical, light waves are transverse waves while sound waves are longitudinal waves
While sound waves are mechanical, light waves are electromagnetic. Unlike sound waves, which are longitudinal, light waves are transverse. Light waves can go across a vacuum. Since sound waves need a physical medium to move through, they cannot move in a vacuum.
What is sound wave?The pattern of disruption brought about by the movement of energy through a medium (such as air, water, or any other liquid or solid matter) as it spreads away from the source of the sound is known as a sound wave. Pressure waves are generated by item vibrations that cause sound waves, such as those from a ringing phone.
Unlike sound waves, which need a medium to propagate, light waves may travel in a vacuum.
Additionally, light waves are transverse waves whereas sound waves are longitudinal waves and light waves are electromagnetic waves.
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Which mathematically describes the wave properties of electrons?.
Answer:
On Waves. Quantum mechanically, an electron can be described by a wave function oscillating in space and time that has mean values equal to the expectation values of observables corresponding to given operators. ... Electrons are fermions. They are charged particles. in short the quantum theory
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what is a joule in science? and how does it relate to work? helppp I need an answer!!! (no links)
Answer: joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre.
Explanation:
This is a unit used to measure energy or work. One joule is the amount of energy required to produce one watt of power for one second. It's also the work done by a force equal to one newton exerted over a distance of one meter.
Hope this helps!
What is the correct definition of acceleration?
a) the change of velocity over time
b) the change of inertia over time
c) the change of velocity over distance
d) the change of speed over time
Answer:
Hello
a) the change of velocity over time
Answer:
c.the change of velocity over distance
A +2.0-nC point charge is placed at one corner of a square (1.5 m on a side), and a -3.0-nC charge is placed on a corner diagonally away from the first charge. What is the magnitude of the electric field at either of the two unoccupied corners? *
With the charges of the square as +2.0-nC point charge and -3.0-nC point charge, The magnitude of the electric field is mathematically given as
Et= 14.42 N/c
What is the magnitude of the electric field at either of the two unoccupied corners?Question Parameters:
A +2.0-nC point charge is placed at one corner of a square (1.5 m on a side), and a -3.0-nC charge
Generally, the equation for the electric field is mathematically given as
E = k*q1/a^2
Therefore
E1= 9*10^9*2*10^-9/1.5^2
E1= 8 N/c
For E2
E2= 9*10^9*3*10^-9/1.5^2
E2= 12 N/c
In conclusion, The magnitude of the electric field at either of the two unoccupied corners
[tex]Et = \sqrt{E1^2 + E2^2}[/tex]
Et= 14.42 N/c
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Find the formula for terminal velocity and define each of the variables in the equation.
When the object falls through a viscous fluid with terminal velocity the total downward force becomes equal to total upward force
[tex]\\ \rm\rightarrowtail mg=U+F_v[/tex]
[tex]\\ \rm\rightarrowtail mg=m_1g+6\pi \eta rv_T[/tex]
[tex]\\ \rm\rightarrowtail (m-m_1)g=6\pi \eta rv_T[/tex]
[tex]\\ \rm\rightarrowtail v\rho g=6\pi \eta rv_T[/tex]
[tex]\\ \rm\rightarrowtail \dfrac{4}{3}\pi r^3(\rho-\sigma)g=6\pi\eta rv_T[/tex]
[tex]\\ \rm\rightarrowtail v_T=\dfrac{4gr^2(\rho-\sigma)}{18\eta}[/tex]
[tex]\\ \rm\rightarrowtail v_T=\dfrac{2}{9}\dfrac{gr^2(\rho-\sigma)}{\eta}[/tex]
[tex]\eta[/tex] is viscosityr is radius of tubev_T is terminal velocitym is mass[tex]\rho [/tex]is density of object[tex]\sigma[/tex] is density of fluidg is acceleration due to gravityA boat in the trough of a wave takes 3 seconds to reach the highest point of the wave. The velocity of the wave is 5 m/s. What is its wavelength?
Answer:
wavelength is equal to speed over frequency
A boat in the trough of a wave takes 3 seconds to reach the highest peak of the wave, then its wavelength will be equal to 30 m.
What is Frequency?The frequency of an event is its repetition per time unit. In a contrast to spatial frequency, it is also often referred to as temporal frequency, and in a contrast to angular frequency, it's often referred to as conventional frequency.
The standard unit is hertz (Hz), which is equal to one per second. The reciprocal of frequency is period, which itself is defined as the amount of time for one cycle of a repeating occurrence.
From the given data in the question,
Total time, t = 3s + 3s
t = 6 seconds.
Frequency, f = 1/6s
f = 0.1666 Hz
Now, let's find out the wavelength,
λ = υ/f
= 5/0.1666
λ = 30 m.
Therefore, the wavelength will be equal to 30 m.
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Dennis the Menace uses his slingshot to shoot a small rock at his neighbor's flowerpots. The rock travels a distance of 12.5 cm from the point at which he pulls it back to the point at which it leaves the slingshot. It leaves the slingshot at a velocity of 6.24 m/s. Find the average acceleration of the rock.
Answer:
[tex]a=155.750\ m/s^2[/tex]
Explanation:
It is given that,
A small rock is shoot at Dennis' neighbor's flowerpots. The rock travels a distance of 12.5 cm from the point at which he pulls it back to the point at which it leaves the slingshot.
Final velocity of the rock, v = 6.24 m/s
The initial velocity of the rock, u = 0 (as it was at rest)
Let a is the acceleration of the rock. It can be calculated using the equation of kinematics as follows :
[tex]v^2-u^2=2ad\\\\\text{Put u = 0 }\\\\v^2=2ad\\\\a=\dfrac{v^2}{2d}\\\\a=\dfrac{(6.24)^2}{2\times 12.5\times 10^{-2}}\\\\a=155.750\ m/s^2[/tex]
So, the average acceleration of the rock is [tex]155.750\ m/s^2[/tex].
A rolling desk chair has a mass of 8 kg and an initial velocity of 6 m/s. The chair is given an acceleration of 12 m/s² for 3s.
What is the magnitude of the net force on the chair during acceleration?
96 N
48 N
144 N
288 N
Work is the application of force to move an object. It is proportional to both the force applied to the object and the distance it moves.
Net force = 96 N.
What is the relationship between work force and distance?Work is the application of force to move an object. It is proportional to both the force applied to the object and the distance it moves. This equation can be used to calculate work: Work = Force x Distance.The work done by a force of constant magnitude working in the strict direction of the object's velocity (however that changes) is magnitude of force times distance travelled.Positive Work : If a force moves an object in its direction, the work done is positive.Negative Work: Work is said to be negative if the force and displacement are in opposite directions.Mass m = 8 kg
Initial velocity = 6 m/s
Acceleration a = 12 m/s²
Time = 3 s
v = u + at
v = 6 + (12)(3)
v = 42 m/s
Work done = (1/2)(8)(42² - 6²)
Work done = 6,912
s = ut + (1/2)(a)(t)²
s = (6)(3) + (1/2)(12)(3)²
s = 18 + 54
Displacement (s) = 72 m
Net force = Work done / Displacement
Net force = 6,912 / 72
Net force = 96 N
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Figure I shows the position of the moon at local time 10:00 P. M with respect to point A on earth’s surface. Figure II shows the position of the moon 24 hours later with respect to the same place. Which phenomenon will a person at point A observe?
Answer:
A
Explanation:
i just did this on usatestprep the answer A
A gas has an initial pressure of 50kpa at a temperature of -67°c. calculate
the final pressure of this gas if its temperature is increased to 398°c at a
constant volume.
Answer:
the pressure will be 297.01 kpa
27 points will mark brainliest if correct
A freeway exit curves with a radius of 30 m and a posted speed limit of 17.5 m/s. What is your radial
acceleration if you take this exit at the posted speed?
A.7.3 m/s2
B.3.5 m/s2
C.1.3 m/s2
D.10.2 m/s2
Answer:
10.2 m/s^2
a=v^2/r
the angle at which light strikes a surface is called the:
Answer:
Angle of incidence
Explanation:
When light is reflected from a surface, the angle of incidence is always equal to the angle of reflection, where both angles are measured from the path of the light to the normal to the surface at the point at which light strikes the surface. This equality is known as the law of reflection.
A cannon is fired horizontally at 243 m/s off of a 62 meter tall, shear vertical cliff. How
many seconds will have elapsed before the cannon ball strikes the ground?
Horizontal component of ball, u = 0 m/s.
Height from which it thrown, h = 62 m.
By equation of motion :
[tex]s=ut+\dfrac{at^2}{2}[/tex]
Putting all given equation, we get :
[tex]62=0\times t+\dfrac{10t^2}{2}\\\\t=\sqrt{12.4}\ s\\\\t = 3.52\ s[/tex]
Therefore, time taken is 3.52 s.
Hence, this is the required solution.
The initial velocity of a ball sent upward from the ground, is 12 m/s. What will its final velocity be before it hits the ground
O 12 m/s
0-12 m/s
0 -9.8 m/s
O 9.8 m/s
Answer:
The final velocity s 12 m/s.
For the upwards trajectory: (using the positive value of g in the downward direction)
Vf = Vi - g t = 0 where Vi is initial velocity and Vf the velocity at max height
Vf = 12 - g t = 0 t = 12 / g time to reach max height
For the downwards trajectory
Vf = Vi + g t = 0 + g t = g * 12 / g = 12 where t was found above
We know the from 2 g h = Vf^2 - Vi^2, since the height is the same in both directions, that the ball reaches the ground with at the same speed at which it was sent.
Also, conservation of energy shows that the ball must return to the ground with the speed with which was projected.
Please help I’ll name you brainliest and give five stars please
Answer:
i think its 10 or 11 not sure though if its wrong im sorry im trying to help
Explanation:
You are designing a pendulum clock to have a period of 1.0 s. How long should the
pendulum be?
For an accurate design of the pendulum that will match the period, the length of the pendulum clock must be 0.25 m.
Period of oscillation of simple pendulumThe period of oscillation of simple pendulum is calculated as follows;
[tex]T = 2\pi \sqrt{\frac{l}{g} }[/tex]
where;
L is the length of the pendulumg is acceleration due to gravityT is the period of the oscillationMake "L" the subject of the formula in the above equation.
[tex]\frac{T}{2\pi} = \sqrt{\frac{l}{g }} \\\\\frac{T^2}{4\pi^2} = \frac{l}{g} \\\\l = \frac{gT^2}{4\pi ^2} \\\\l = \frac{(9.8)(1)^2}{4\pi ^2} \\\\l = 0.25 \ m[/tex]
Thus, the length of the pendulum clock is 0.25 m.
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A man who weights 900N stands on a platform scale in a elevator. The elevator has a mass of 4000kg; the reading scale is 700N. What is the direction of the net force acting in the man
Hi there!
We know that there are TWO forces acting on the man.
Force due to gravity: Acts DOWNWARDNormal force due to the elevator floor: UPWARDWe can express this in an equation. Let DOWN be NEGATIVE, and UP be POSITIVE.
[tex]F_{net} = N - F_g[/tex]
Recall that a SCALE measures the NORMAL FORCE, NOT the WEIGHT. Therefore:
N = 700 N
W = 900 N
[tex]F_{net} = 700 - 900 \\\\F_{net} = -200N[/tex]
Since downward is negative, the net force is acting DOWNWARD.
An emission spectrum is: various wavelengths emitted by an excited substance the wavelengths that are removed from a continuous spectrum when it passes through a substance a spectrum that contains only a few discrete wavelengths a spectrum containing all wavelengths the range of wavelengths emitted or absorbed by an object
Answer: Various wavelengths emitted by an excited substance
Explanation:
Which is a convex lens? (The blue arrows represent the direction of light as it interacts with the lenses. ).
Image C is a convex lens.An optical lens is made up of two spherical surfaces is convex lens.Its surfaces are curved outwards.
What is convex lens ?An optical lens is made up of two spherical surfaces is convex lens The lens is called a biconvex lens or simply convex lens if those surfaces are curved outwards.
Converging lens is another name for it. It's because it brings all the light rays that are parallel to the primary axis together at the focus point (F).
The picture created by a convex lens is always real and inverted. The produced image is virtual and erect when the item is positioned between the focus and the optical center of the lens.
Hence image C is a convex lens.
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Answer:
C
Explanation:
A car is moving from rest and attained a velocity of 80 m/s. Calculate the acceleration of the car after 5 s?
Answer:
400 m/s
Explanation:
If it is moving at a velocity of 80 m/s from rest, then after 5 s it would be at 400 m/s.
80 x 5 = 400
What is meant by solenoid? How does a current carrying solenoid behave?
•Question⟿What is meant by solenoid?
•Answer⟿If a conducting wire is wound in form of a cylindrical coil whose diameter is less in comparison to its length, the coil is called a solenoid. It looks like a helical spring.
•Question⟿How does a current carrying solenoid behave?
•Answer⟿
The magnetic field lines of a current carrying solenoid are similar to the magnetic field lines of a bar magnet. Thus, a current carrying solenoid behaves just like a bar magnet.A current carrying solenoid when suspended freely sets itself in the north south direction exactly in the same manner as a bar magnet does.A current carrying solenoid also acquires that attractive property of a magnet. If iron fillings are brought near the current carrying solenoid, it attracts them.Explanation:
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current carrying solenoid behaves as an electromagnet. The uniform magnetic field inside it may magnetise a steel rod permanently. Detailed Answer: A coil of many circular turns of insulated copper wire wrapped closely in the shape of a cylinder is called a Solenoid.
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If an object is not accelerating, it can exist in what 2 other states of motion?
Answer:
Friction is a force that acts in a direction opposite to the motion of the moving object.
Friction will cause a moving object to slow down and finally stop.
Jeff found the key to exit the tower and wanted to give it to Rapunzel. If her hand is 200m above the ground, what is the required velocity for Jeff to toss the key to reach her in m/s?
Answer:
10M/S
Explanation:
DUE TO GRAVITY
A man walks 23 km east and then
turns around and heads west for 46
km, then east for 23 km. What is his
displacement?
A) 92 km
B) 0 km
C 46 km west
D) 46 km East
60 points! Explain how fission can cause damage to living tissue (i.e. what does nuclear energy do to the tissue?)
Answer:
Radiation Released by Fission
When an atom is split, three types of radiation that can damage living tissues are released. ... Ionization is the transfer of energy to the molecules that make up tissue, breaking chemical bonds and causing damage to cells and to DNA.
Explanation:
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