Answer:
The new planet has more gravity
Explanation:
gravity force = G m1 m2 / r^2
decresing r or increasing the planet mass will increase the force
____________loosens up your muscles and brings your heart rate up in a slow, steady way that’s better for your body.
A.
Sprinting
B.
Cooling down
C.
Warming up
D.
Weightlifting
Answer:
C ) Warming up
Explanation:
C:
~Chiena
Answer:
B
Explanation:
hope it helps <33
What is an electric field? How
do you calculate the electric
field due to a point charge?
Rock 1, of mass m, reaches a maximum height hmax after being launched. During the time between the instant rock 1 is launched from height h0 and the instant it returns to height h0, the work done on the rock by the gravitational force is
The work done on the rock when it reaches maximum height is by gravitational force is 9.8mh (J).
Work done on the rock by gravitational force
The work done on the rock by the gravitational force is determined as follows;
P.E = mgh
where;
m is mass of the rockh is the maximum height reached by the rockg is acceleration due to gravityP.E = m x 9.8 x h(max)
P.E = 9.8mh (J)
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Which imaging technique uses x-rays to make cross-sectional images of the body? mri ct scan x-ray imaging ultrasound
Computed tomography (CT) is an imaging tool that combines x-rays with computer technology to produce a more detailed, cross-sectional image of your body.
What is CT-Scane?Computed tomography (CT) scan is a useful diagnostic tool for detecting diseases and injuries.
Computed tomography (CT) is an imaging tool that combines x-rays with computer technology to produce a more detailed, cross-sectional image of your body.
It uses a series of X-rays and a computer to produce a 3D image of soft tissues and bones.
CT is a painless, noninvasive way for your healthcare provider to diagnose conditions.
A CT scan lets your doctor see the size, shape, and position of structures that are deep inside your body, such as organs, tissues, or tumors.
Hence Computed tomography (CT) is an imaging tool that combines x-rays with computer technology to produce a more detailed, cross-sectional image of your body.
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Answer:
B
Explanation:
just took the test.
Hello people ~
Which of the following statement is true?
(a) Electrostatic force is a conservative force.
(b) Potential at a point is the work done per unit charge in bringing a charge from any point to infinity.
(c) Electrostatic force is non-conservative
(d) Potential is the product of charge and work.
Answer:
In case of electrostatic force, the work done is independent of path, it only depends on the final and initial positions of the charge. This path independent nature makes electrostatic force a conservative force. Thus, the option a becomes true, and the opposite statement (ie.
Answer:
Option A
Explanation:
As we know that electrostatic force is path independent
It is the force present between the charges of atoms .
Hence it's conservative force.
What is the current in a 10V circuit if the resistance is 20?
Answer:
check the attachments for the solution
What is the essential difference between microwaves and blue light?.
Answer:
There is no essential difference between microwaves and blue light other than a difference in frequency and wavelength.
Explanation:
Which statement best describes heat and thermal energy?
O They are different words for the same thing.
O They represent different concepts.
O Heat is what happens when thermal energy stops moving between substances.
O Thermal energy is what happens when heat moves between substances.
If you push on a small car that is stuck in the mud, why do you sink into the
ground as you push on the car?
As you're applying force to the car, the mud which is a sinking surface would but you in the same place as the car is. The car is stuck in the mud and sunk to point where it cannot be pulled out unless an outside force interferes. When you apply force into the car and try to push it out, you would be put in the same situation. You would be experiencing friction which is an opposing force, in this problem, a simple machine such as a pulley would be helpful as it can lift the car from the outside. The car would act as a load and someone or some type of machine can use force to pick the car out of the mud. But if you were to try to push it out of the mud, you would just sink as the force applied would only put you in the same situation as the car, overall resulting in both beings (objects - car, human - "you" POV) being stuck in the same conumdrum.
Answer:
See below
Explanation:
Gravity will pull you down as you stand in the mud.
Additionally , if you do not push exactly horizontally ......like you push UP some , the equal and opposite force will push YOU down into the mud.
This would be like picking up a weight while you are standing there
F = ma will be greater and you will get muddier !
Do some research on digital vs. analog recording, and decide which you think gives the most accurate and best quality sound. State the advantages and disadvantages of each in a paragraph. Be sure to back up your opinions with facts, and state your sources.
Answer:
Sound quality depends on a lot of factors, and it is impossible to definitively state that either analog or digital is fundamentally better. These days, many records are made using playback of a digital file, so vinyl preference cannot be attributed solely to the differences in the way the sound wave is reproduced.
Explanation:
How much work can a 1000-watt motor do in 5.0 seconds?
A. 4.0 × 101 J
B. 2.0 × 102 J
C. 5.0 × 103 J
D. 2.5 × 104 J
Explanation:
[tex]power = \frac{work}{time} [/tex]
Given
POWER=1000 W
TIME=5s
WORK=POWER×TIME
=1000×5
5×10³
OPTION C
Two bars, bar 1 and bar 2, are at rest on a smooth horizontal table as shown in the top view above. Each bar is connected to the table with a vertical pin. Bar 1 and bar 2 are made from the same material and have the same physical dimensions, but bar 1 has three additional large holes drilled through it. The two bars are each accelerated from rest by forces of equal magnitude F
applied at their right end. The forces remain perpendicular to the bars and the forces are exerted for an equal amount of time t1
.
(a) Briefly explain using physics principles why the angular displacement for bar 1 is larger than the angular displacement for bar 2.
Bar 1 has larger angular displacement than bar 2 because it has more revolutions per second due to its larger hole size.
Angular speed of the bars
Angular speed is the rate of change of angular displacement with time.
ω = θ/t
where;
ω is angular speedθ is angular displacementt is time of motionThe bar with three additional large holes drilled through it (bar 1), will have more rotation per second because its holes are bigger than that of bar 2.
The bar with more rotations or angular speed will have more angular displacement.
Thus, bar 1 has larger angular displacement than bar 2 because it has more revolutions per second due to its larger hole size.
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A force of attraction would exist between
Answer:
A south and north pole (negative and positive pole)
Explanation:
Because opposites attract
If an airborne diver goes from a full layout position to a tuck position, what will happen to his angular momentum
If an airborne diver goes from a full layout position to a tuck position. Its angular momentum remains the same.
What is angular momentum ?The rotational analog of linear momentum is angular momentum also known as moment of momentum or rotational momentum.
It is significant in physics because it is a conserved quantity. The total angular momentum of a closed system remains constant. Both the direction and magnitude of angular momentum are conserved.
Hence, Its angular momentum remains the same.
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what does Atomic Collisions mean
Answer:
Atomic and molecular collision processes are the physical interactions of atoms and molecules when they are brought into close contact with each other and with electrons, protons, neutrons or ions. This includes energy-conserving elastic scattering and inelastic scattering.
hello people~
A conductor with a positive charge
(a) is always at +ve potential.
(b) is always at zero potential.
(c) is always at negative potential.
(d) may be at +ve, zero or -ve potential.
Answer:
B
Explanation:
Let's see the formula
V=kq/rIf q is positive it yeilds V or potential as positive hence it is at zero potential
Option B is correct
How many turns should a coil wrapped around the outside of the solenoid have so that the emf induced in the coil is 15 V
The number of turns a coil wrapped around the outside of the solenoid should have is : 127 turns
Given data :
Diameter of solenoid = 25-cm
Rate of increase of magnetic field = 2.4 T/s
Induced emf = 15 v
Determine the number of turns of the coilInduced emf = N ( dФ / dt ) ---- ( 1 )
where : ( dФ / dt ) = ( A (db/dt) )
Equation ( 1 ) becomes
Induced emf = N A ( db/dt ) ------ (2)
From equation ( 2 )
N = Induced emf / A ( db/dt ) ------ ( 3 )
where : Induced emf = 15 v . db/dt = 2.4 T/s , A = area of solenoid
Area of solenoid = πr² = π * ( 0.125 )²
Insert values into equation ( 3 )
N = 15 / ( π * ( 0.125 )² ) * 2.4
= 127.32 ≈ 127 turns
Hence we can conclude that The number of turns a coil wrapped around the outside of the solenoid should have is : 127 turns.
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Below is the missing part of the question
The magnetic field inside a 25-cm-diameter solenoid is increasing at 2.4 T/s
When water (H₂O) freezes into ice, some of the properties have changed. What stays the same?
O identity of the H₂O
O energy of the H₂O
O arrangement of the H₂O
O property of the H₂O
Answer:
1st one
identity of the H₂O
When water (H2O) freezes into ice, some of the properties have changed but the identity of the H2O is the same. Explanation; Water can exist in liquid, solid; ice and gaseous state; steam. Freezing occurs when water is continuously cool until it turns to solid ice, water freezes at zero degree Celsius
Hope This Helps
Answer:
A. identity of h20
Explanation:
Milo and a friend hold opposite ends of a long toy spring. Milo compresses a few of the coils and then let’s go, while Milo’s friend keeps the other end of the spring held tight
In a case whereby Milo compresses a few of the coils and then lets go, while Milo's friend keeps the other end of the spring held tight the choices that best describes the situation with the spring's energy is that Energy moves from Milo's end to the opposite end as a wave.
What is the energy of a spring?Work is done when a spring is extended or compressed can be descvribed as the energy in the spring, however the Elastic potential energy is been seen to be stored in the spring.
It should be noted that the Provided inelastic deformation could be seen when the work done is equal to the elastic potential energy stored. Hence the Energy moves from Milo's end to the opposite end as a wave.
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missing part
Milo compresses a few of the coils and then lets go, while Milo's friend keeps the other end of the spring held tight. Which of the following choices best describes what is happening with the spring's energy? Energy moves from Milo's end to the opposite end as a wave.
Energy moves from Milo's end i the same direction.
Energy do not moves from Milo's end to the opposite end as a wave.
Acceleration depends on which two factors?
A) mass and position
B) net force and mass
C) mass and velocity
D) position and net force
Taking into account the Newton's second law, acceleration depends on position and net force (option D).
Newton's second lawAcceleration in a body occurs when a force acts on a body. There are two factors that influence the acceleration of an object: the net force acting on it and the mass of the body.
Newton's second law states that this force will change the speed of an object because the speed and / or direction will change. These changes in velocity are called acceleration.
So, Newton's second law defines the relationship between force and acceleration mathematically. This law says that the acceleration of an object is directly proportional to the sum of all the forces acting on it and inversely proportional to the mass of the object.
Mathematically, Newton's second law is expressed as:
F= m×a
where:
F = Force [N]m = Mass [kg]a = Acceleration [m/s²]SummaryIn summary, the acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. (option D)
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Anders suffered a shock when his electric radio dropped into the bathtub--while anders was taking a bath. Anders argued that he did not realize it was dangerous to operate an electric radio near his bathtub. If he sues the radio manufacturer for damages, which claim is he most likely to make?.
The claim Anders is most likely to make is the failure of the manufacturer to warn about such risk.
What is a Risk?This is defined as the possibility of something bad happening and in this case it is electric shock when dropped into the bathtub.
Anders can decide to sue for not warning against risk of electric shock when in contact with water.
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17. An object with a mass of 2.0 kg has a force of 6.2 newtons applied to it. What is
the resulting acceleration of the object?
Answer:
F=mass×acceleration
Acceleration=force÷mass
6.2/2=3.1
The resulting acceleration is 3.1 m/s2
Answer:
3.1 m/s²Explanation:
We know the relation :
Force = Mass x AccelerationWe can rearrange so it is equal to acceleration :
Acceleration = Force / MassHere :
Mass = 2.0 kgForce = 6.2 NSubstituting the values in our rearranged equation :
a = 6.2 / 2.0a = 3.1 m/s²Therefore, the resulting acceleration of the object will be 3.1 m/s²
Does anyone know this stuff? I’m so confused already
Explanation:
A position versus time graph gives the position of an object at a certain point in time. The slope, also known as the derivative, will give the change in the position with respect to time. The slope will give you the instantaneous velocity of the object due to velocity being defined as the change in position over time
Answer:
see below
Explanation:
This graph shows an object initially travels at a constant velocity for 4 seconds.....the velocity is the slope of the graph for these 4 seconds.
then it remains stationary from t = 4 to t =6 ...see the graph is flat (slope = 0 means no velocity) ...at position 3
at t = 6 it reverses course ....a negative velocity (steeper slope ...higher velocity) until it reaches position 0 at t = 9
These times are what I think I can see...the graph is kind of fuzzy.
By whom, and in what setting, was the relationship between electricity and magnetism discovered?.
Explanation:
Electromagnetism is the study of the electromagnetic force which is a type of physical interaction that occurs between electrically charged particles.
Hans Christian Oersted discovered the relationship between electricity and magnetism in 1820.
What do you look forward to more than anything else once school gets out for the summer.
PLEASE HELP!
Explanation:
10 Reasons to Look Forward to GoingBack to School..
The people. ... The places. ... The events. ... Extracurricular activities. ... The dining plan options. ... The housing options. ... The freedom. ... The first day of classes.When the net force acting on a droplet of water becomes zero, then it falls with
A.final velocity
B.initial velocity
C.terminal velocity
D.zero velocity
Answer:
C. Terminal Velocity
Explanation:
Terminal velocity is the maximum velocity an object can experience under free-fall. It occurs when the force of drag (air resistance) matches the force of gravity, causing zero net force. Since [tex]F_{net}=ma[/tex], zero net force means zero acceleration.
Remember that an object can be moving at some velocity and still have zero net force. The zero net force just indicates zero acceleration, meaning the velocity is constant and is not changing.
What were the different methods used for testing the paperclip and the water cohesion on the penny?
Answer:
The diffrent methods that are used for testing the paperclip and water cohesion on the penny is that first, you put the dish of water on some table, you put a paperclip in it. The second method is using a dish of soap water.
By marking the tip and tail locations of a compass in the presence of a magnetic field, the magnetic _____ are traced out.
By marking the tip and tail locations of a compass in the presence of a magnetic field, the magnetic field lines are traced out.
What is a magnetic field?It is the type of field where the magnetic force is obtained. With the help of a magnetic field. The magnetic force is obtained it is the field felt around a moving electric charge.
By marking the tip and tail locations of a compass in the presence of a magnetic field, the magnetic field lines are traced out.
Hence field line is the correct answer for the blank.
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A glance at the speedometer on your vehicle will tell you your overall:_____.
a. speed. b. acceleration. c. instantaneous speed. d. average speed.
A glance at the speedometer on your vehicle will tell you your overall instantaneous speed .
The speedometer of a vehicle reveals information about the instantaneous speed of your vehicle. It shows your speed at a particular instant in time.
What is speedometer ?"A speedometer in a vehicle is an important instrument in a vehicle which shows the current speed of the vehicle and the distance of the vehicle travelled primarily. It is measuring the instantaneous values of speed and distance not the average value of the distance and the speed."
What is speed ?"The rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude."
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PLEASE HELP ASAP
What conclusions can you draw about the relationship between string length and frequency and other patterns in the characteristics of sound waves, such as pitch and loudness? Write evidence-based claims to support your statements.
(a) Frequency of sound wave is inversely proportional to string length.
(b) Pitch of a sound depends on the frequency while loudness depends on the amplitude of sound.
Relationship between string length and frequencyThe relationship between string length and frequency is given as;
λ = 2L
where;
λ is wavelengthL is length of the stringv = fλ
f = v/λ
f = v/2L
Thus, frequency of sound wave is inversely proportional to string length.
Relationship between pitch and loudness of soundThe pitch of a sound depends on the frequency while loudness of a sound depends on the amplitude of sound waves.
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