Answer:
The reading will be the same.
Explanation:
Mass does not depend upon anything and it remains the same anywhere. What changes is the weight of the body because it depends upon gravity and is different at different places.
Giving me the brainest will be helpful.
The reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.
What is a weighing scale?A weighing scale known as a balance is a device used to quantify weight or mass. The classic scale is made up of two plates or bowls that are suspended at equal distances from a fulcrum.
A person with a mass of 70kg is standing on a scale in an elevator suddenly the cable snaps, The reading on the scale during free-fall will be the same as the initial elevator condition.
Hence the reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.
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if the electron affinity for an element is a negative number, does it mean that the anion of the element is more stable than the neutral atom?
No, the anion of the element is more stable than the neutral atom but an electron in an atom or ion is lower in energy than a free electron.
We know that,
Kinetic energy is defined as the energy of the object that occurs due to the motion of the object. The total work needed by the body to starts accelerating it by the help of given mass which is supplied from the rest position and its mentioned velocity.
The energy body gets due to the process of acceleration by this the body will able to main the kinetic energy of the body without changing the speed of the body.
The energy which has been stored in the body or any object by the help of the particular position or the proper arrangement of the parts is known as potential energy.
There will be no effect of the outside environment on the potential energy that present inside the body.
The kinetic energy decrease or increase with change into the velocity.
Therefore, No, the anion of the element is more stable than the neutral atom but an electron in an atom or ion is lower in energy than a free electron.
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a car in tally at rest pics up and velocity of 72 km/h ^−1over a distance of 25m the acceleration of car is
Answer:
16 m/s^2
You find out the time first which is 1.25s
A cheetah running initially at a velocity of 20 m/s accelerates
uniformly at 3.0 m/s. The velocity of the cheetah will be
m/s after 4.0 seconds.
Answer: I think it’s 32 m/s
Explanation: Vi=20 m/s
Vf=?
a=3.0 m/s^2
t= 4s
Vf= Vi + at
Vf= 20 m/s + (3 m/s^2)(4s)
Vf= 20 m/s + 12m/s
Vf= 32m/s
If A cheetah running initially at a velocity of 20 m/s accelerates
uniformly at 3.0 m/s2. The velocity of the cheetah after 4.0 seconds will be 32 m/s.
To find the velocity of the cheetah after some time we can use the formula:
v = u + at
where:
v = final velocity
u = initial velocity
a = acceleration
t = time
Given:
Initial velocity (u) = 20 m/s
Acceleration (a) = 3.0 m/s²
Time (t) = 4.0 seconds
now we can put values in eq.
v = 20 m/s + (3.0 m/s²) * 4.0 s
v = 20 m/s + 12 m/s
v = 32 m/s
so the answer is 32 m/s.
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what can be done not to let anyone of the country be hungry and clothless discuss in groups and present your findings in the class
...get food to people in need when they need it...
The device that is made up of many single slits that diffract light and form a diffraction pattern , is called
Gọi là máy quang phổ kế
That's a diffraction grating.
quỹ đạo chuyển động của vật là đường thẳng?
Explanation:
what is your language i don't no
hi can someone please answer the number 2 question i really need it thank you ❤️
#Batangas
[tex]\\ \tt\longmapsto d=\dfrac{49.07}{8}\times 100[/tex]
[tex]\\ \tt\longmapsto d=6.13(100)[/tex]
[tex]\\ \tt\longmapsto d=613km[/tex]
#Puerto Princesa
[tex]\\ \tt\longmapsto d=\dfrac{58.10}{8}\times 100[/tex]
[tex]\\ \tt\longmapsto d=7.26(100)[/tex]
[tex]\\ \tt\longmapsto d=726km[/tex]
#Davao
[tex]\\ \tt\longmapsto d=\dfrac{39.47}{8}\times 100[/tex]
[tex]\\ \tt\longmapsto d=4.93(100)=493km[/tex]
A pressure of 0.01 N/cm squared is produced when a book with an area of 300cm squared is place on a table what is the weight of the book
Answer:
Pressure =Area × height
0.01N/cm=300cm×height
height=0.01×300
3cm
The weight of the book is equal to 3N.
What is Pressure?Pressure can be described as the ratio of the force exerted to the surface area over which the force is exerted. We can define pressure as the force applied perpendicular to the surface per unit area over which that applied force is distributed.
The SI unit of pressure can be represented as the pascal (Pa). A pascal is the force of one newton (N) exerted over a surface area of 1 m². Since the pressure is dependent on the area so the pressure can be increased and decreased without changing the force.
Given, the pressure on the book, P = 0.01 N/cm²
The area of the book, A = 300 cm²
Pressure = Force/ Area
Force = Pressure ×Area
Force = 0.01 × 300 = 3 N
Weight of the book, W = mg = 3 N
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A force applied to an object at rest causes the object to move. According to Newton’s first law, what must be true of the force?
Answer:
An object will not move unless acted upon by an unbalanced force.
Explanation:
Since Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
Hope this helps!!
According to Newton's law of motion an object will at a state unless and until a force act upon it. Hence, force is an external agent which change the state of an object.
What is Newton's law of motion?Newton proposed three laws of motion explaining the motion an object. The first law states that an object will continue at the state of motion or rest unless a force acting on it.
Therefore force is an external agent which acts on a body to change it from the state of rest or motion. Force is directly proportional to the mass of the body. Hence, greater the mass, greater force must be applied to change its state.
The first of motion is called law of inertia, where inertia is the tendency of a body to stay in a state. Therefore, force changes this tendency of an object.
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to analyze the characteristics and performance of the brakes on a 1500 kg car, researchers collected the data shown in the table above. it shows the car’s speed when the brakes are first applied and the corresponding braking distance required to stop the car. the magnitude of the average braking force on the car is most nearly:
He magnitude of the average braking force is 12,000 N.
The braking force can be calculated using the following formula:
Braking Force = (0.5 x mass of the car x squared velocity) / distanceNow, let's use this formula to find the Braking force in each case based on the information of the chart:
F = (0.5 x 1,500 x 100) / 6.1 = 12,295F = (0.5 x 1,500 x 400) / 23.9 = 12,550F = (0.5 x 1,500 x 900) / 53.5 = 12,616Now, let's add the results and divide the result into three to find the average:
12,295 + 12,550 + 12,616 = 37,461/ 3 = 12,487From these, the option that is the most similar is C 12,000 N
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Friction force affects the work done by the applied force.
T OR F
Answer:
TRUE.
Explanation:
YES IT EFFECTS.
IT MAY HELP YOU.
Answer:
True
Explanation:
true because if you where to push a ball on a beach the friction with the sand would make it harder to push then being on concrete.
An airplane during departure has a constant acceleration of 3 m / s².
a. What is the speed that the plane reaches in 4 s?
b. If the plane passes at a flight point of
at a speed of 20 m / s, what is the speed 8 s later?
Constant acceleration of plane = 3m/s²
a) Speed of the plane after 4s
Acceleration = speed/time
3m/s² = speed/4s
S = 12m/s
The speed of the plane after 4s is 12m/s.
b) Flight point will be termed as the point the plane got initial speed, u, 20m/s
Find speed after 8s, v
a = 3m/s²
from,
a = v - u
t
3 = v - 20
8
24 = v - 20
v = 44m/s
After 8s the plane would've 44m/s speed.
which of the following is a selectively permeable membrane?
a) nulcer membrane
b) plasma membrane
c) cell wall
d)none of these
Answer:
B
Explanation:
The plasma membrane is a selectively premeable membrane that chooses what goes in and out of the cell. The cell wall is for support and the nuclear membrane decides what goes in and out of the nucleus
Answer:
Plasma membrane
Explanation:
The plasma membrane consists of a lipid bilayer that is semipermeable.The plasma membrane regulates the transport of materials entering and exiting the cell.So, it is selectively permeable membrane.
The graph below represents the relationship between velocity and time of travel for a toy car moving in a straight line.the shaded area under the line represents the toy cars
Answer:
Displacement
Explanation:
The definition of speed and the graphical analysis allows to find the result for the question of the meaning of the area under the curve is:
The area corresponds to the displacement of the body.
Velocity is defined as the variation of position with respect to time.
[tex]v = \frac{dx}{dt}[/tex]
Where v is the velocity, x the displacement and t the time.
If we make a graph of speed versus time, see attached, where we have a diagram of the process.
The expression of the velocity for the case of zero acceleration is
[tex]v = \frac{\Delta x}{\Delta t }[/tex]
Δx = v Δt
They indicate that the shaded section is under the curve, therefore it is
Area = Δv Δt
When comparing the two expressions they are equivalent, therefore the area is equal to the distance traveled.
In conclusion, using the definition of velocity and graphical analysis we can find the result for the question of the meaning of the area under the curve is:
The area corresponds to the displacement of the body.
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Physics - Vectors-- Could you help me please?
Answer:
please share the question
Explanation:
a spring vibrates 120 times in 2 mins find its frequency and time period
2 minutes is 120 seconds, so if you were finding vibrations per minute, it would be 60 times a minute.
Q3- It takes you 35 min to walk to the shop. If the distances are A = 0.5 km, 8 - 1.4 km, and C = 0.8 km what was your average speed in km/h?
O 0.025 km/h
0.090 km/h
O 1.5 km/h
4.8 km/h
Q2- supposed you walk from your house to school then from school to the store, then from the store to your friend's house. If the distance is A=375, B=750, and C = 435 what was the magnitude of your displacement?
1125m
375m
1560m
2745m
Q1- Suppose you walk from your house to school then from school to the store and then from the store to your friend's house. If the distance is A=375, B=750 and C= 435, what distance did you travel?
1560
2745
1125
375
Answer: 1. .090km/h
2. I dont know
3. 1560
Explanation:
1. add all the numbers up and divide by 3 bc thats how many numbers there are.
2. I dont know
3. add all distances up
A boy throws a tennis ball of mass 3kg at a wall with velocity of 40m/s.If it bounces back with 35m/s in an impact that lasted for 0.01s the change in its linear momentum and the force exerted on the tennis by the wall are
Answer:
The change in the linear momentum is 225 kg.m/s and the force exerted on the tennis ball is 22,500 N.
Explanation:
What is linear momentum?Linear momentum is the measure of a body's motion. Every object that has mass and moves at any velocity has linear momentum. Here are some examples of everyday life: falling balls, launching rockets, driving a car etc.
Now let's attack the problem.
First, we got to write the data down:
[tex]\bullet \quad m=3\,kg\\\\\bullet \quad v_o=40\,m/s\\\\\bullet \quad v=35\,m/s\\\\\bullet \quad \Delta t =0.01\,s[/tex]
We can write the change in linear momentum of the tennis ball as follows:
[tex]\Delta p = p-p_o[/tex]
The ball's momentum is equal to its mass times its velocity. Hence:
[tex]\Delta p= m\cdot v-m\cdot v_o[/tex]
Let's set the reference system as positive to left (see picture attached). For that purpose, when the ball bounces back its velocity changes sign.
Now, we are able to plug in the data:
[tex]\Delta p = 3\cdot 35 - 3\cdot(-40)\\\\\\\Delta p = 105+120\\\\\\\therefore \boxed{\Delta p =225\,kg\cdot m/s}[/tex]
To calculate the exerted force, we must apply the impulse theorem, which states that impulse equals the change in linear momentum of an object. We get:
[tex]\mathbb{I}=\Delta p[/tex]
Hence,
[tex]F \cdot \Delta t=\Delta p\\\\\\F\cdot 0.01=225\\\\\\F=\dfrac{225}{0.01}\\\\\\\therefore \boxed{F=22,\!500\,N}[/tex]
Conclusion: the change in linear momentum is 225 kg . m/s and the exerted force is 22,500 N.
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An object is travelling at a velocity of 5m/s to the right for 5 seconds. If NO forces are applied to the object, what will the velocity of the object be after 5 seconds.
Answer:
Below
Explanation:
We can use this formula to find the final velocity of the object :
vf = vi + at
Now, because no force is applied to the object, the acceleration of this object will be 0 according to Newton's 1st law!
vf = 5m/s + (0)(5)
vf = 5 m/s
Hope this helps!
Below is a diagram of a weight on a spring. When the weight is pulled down and then released, the spring compresses and expands. Each position indicates a different point in time.
Which of the following statements is true?
a
In all four positions, mechanical energy is 0 J.
b
The elastic potential energy of the spring at Position 2 is converted to kinetic energy.
c
The chemical potential energy of the spring is greatest at Position 4.
d
In all four positions, the gravitational potential energy of the spring is the same.
Answer:
B.
Explanation:
The elastic potential energy of the spriy at position 2 is converted to kinetic energy.
The elastic potential energy of the spring at Position 2 is converted to kinetic energy. Option (B) is correct.
What is potential energy?The energy held within an object is known as potential energy. There are several different types of potential energy, including gravitational potential energy, elastic potential energy, and electric potential energy.
Here, the energy that an object possesses as a result of its position in relation to other objects is referred to as its gravitational potential energy.
Elastic potential energy is the energy that an object possesses as a result of the stresses that exist inside its body.
At Position 2, the elastic potential energy of the spring is converted to kinetic energy.
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what is the mass on mercury of an object that weighs 784 n on the earth’s surface?
Answer:
80 kg weighs 80 kg x 9.8 m/s2 = 784 kg m/s2, or 784 Newtons. The surface gravity of Mercury is 0.39 that of Earth's (table 10-1), so 80 kg weighs 784 N x 0.39 = 306 N.
Explanation:
I hope that helps you
15. A boy on board a cruise ship drops a 30.0 gram marble into the ocean. If the resistive force proportionality
constant is 0.50 kg/s, what is the terminal speed of the marble in m/s?
a. 0.06
b. 0.294
c.0.588
d. 60.0
e. 588.0
una fila di ballerini lunga complessivamente 2,3 m sta avvicinandosi perpendicolarmente a uno specchio. Se il primo ballerino, essendo miope, percepisce i contorni in modo nitido degli oggetti lontani al massimo 6 m, a quale distanza dallo specchio comincerà a vedere chiaramente l'ultimo ballerino della fila?
Answer:
A Benjamin Franklin
B George Washington
C Abraham Lincoln
D John Adams
How is temperature related to the physical change of a substance
Answer:
Temperature is a measure of the kinetic energy of particles in a substance. As temperature increases, the atoms or molecules in a substance gain energy. As temperature decreases, the particles lose energy. A change in the energy of particles causes a change in their arrangement. A change in the arrangement of particles can lead to a physical change.
Explanation:
Brainliest pls
a ball is thrown vertically down from the edge of a cliff with a speed of 5.2m/s how high is the cliff if it took 11s for the ball to reach the ground
[tex]\\ \sf\longmapsto h=ut+\dfrac{1}{2}gt^2[/tex]
[tex]\\ \sf\longmapsto h=5.2(11)+\dfrac{1}{2}(9.8)(11)^2[/tex]
[tex]\\ \sf\longmapsto h=57.2+4.9(121)[/tex]
[tex]\\ \sf\longmapsto h=57.2+592.9[/tex]
[tex]\\ \sf\longmapsto h=650.1m[/tex]
Define periodic motion
Q 1.1 Verify full system functionality.
Q 1.2 Document findings, and actions.
Q 1.3 Test the theory to determine the cause of the problem.
Q 1.4 Identify the problem.
Q 1.5 Establish a theory of the cause.
Answer:
Q11. verifying full system functionality confirms that you have solved the original problem and ensures that you have not created another problem while repairing the computer.
Describe how energy is transferred from 1 form to another
Answer:
Thermal energy may be transferred in three ways: conduction, convection, and radiation. Conduction occurs when heat energy is exchanged between nearby molecules that are in touch with one another.
Hope this helps!
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in each of five scenarios, a 1 kg mass is attached to the end of a massless stick by a massless string. each stick is motionless. rank the torques acting on each stick due to the tension in the attached string. take the axis of rotation in each case to be the end of the stick opposite the string.
Answer:
C=A>B>E>D
Explanation:
A car accelerated from rest in 3.07s. During this time, the car went 46m forward. What was its acceleration?
_______m/s/s
Li Wei loves cardio and finds it very easy to fit into his schedule. Because he knows it is important to diversify his exercise routine, sometimes he runs and other days he rides his bike. What else should Li Wei consider regarding his routine?
OPTIONS:
A.
He should add some strength training.
B.
He needs to add one more form of cardio.
C.
He has too much cardio and should cut half of it.
D.
His program works for him, so he should not change it.
PLEASE NO LINKS
Answer:
D.
Explanation:
Li Wei loves cardio and finds it very easy to fit into his schedule. Li Wei should consider his routine is his program works for him, so he should not change it. The correct option is D.
What is cardio?Any form of exercise that raises your heart rate and keeps it there for a long time is considered cardio. As you start to breathe more quickly and deeply, your respiratory system will start to work harder.
The four components of a fitness program are flexibility, cardio, strength, and power.
The physical exercise that increases muscular strength and fitness is referred to as strength.The capacity to produce the most muscle contractions possible during a movement is referred to as power.Cardio refers to the capacity to handle various circumstances of various lengths.Flexibility is the characteristic that is linked to the range of motion offered by a particular joint.Therefore, the correct option is D. His program works for him, so he should not change it.
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