Distance affects the amount of potential energy stored within a system that consists of two bar magnets. A student placed two bar magnets on a table with like poles facing each other.

Which line on Graph 2 accurately shows the relationship between distance and the amount of potential energy stored in this system?

Answer:

First Law of Motion.

Explanation:

Inertia can be defined as the tendency of an object or a body to continue in its state of motion or remain at rest unless acted upon by an external force.

In physics, Sir Isaac Newton's First Law of Motion is known as Law of Inertia and it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.

The inertia of a physical object such as a truck is greatly dependent or influenced by its mass; the higher the quantity of matter in a truck, the greater will be its tendency to continuously remain at rest.

Hence, it would take much more force and time for a large truck to get going when the traffic light turns green than it does for a small, compact car. This is an example of the first law of motion.

Answer:

162 KJ

Explanation:

The electrical energy can be calculated using the formula

E = V×I×t

Where, V= voltage = 120 V

I is current in ampere = 7.5 A and t is time in seconds

1 hour = 3600 sec

Therefore, 0.05 hour = 3600×0.05 = 180 sec

Substitute the values in above equation find electrical power

E = 120×7.5×180

= 162000 J

= 162 KJ

Therefore, the electrical energy use of the microwave = 162 KJ

Answer:

Instrumentos Para Medir La Temperatura

Termómetro de máxima y mínima:

Termómetro metálico:

Pirómetro:

Termohidrógrafo:

Answer:

10 m/s

Explanation:

Applying,

Kentic energy of the pelllet = Spring elestic energy

1/2(mv²) = 1/2ke²

mv² = ke²...................... Equation 1

Where m = mass of the pellet, v = velocity of the pellet, k = force constant of the spring, e = extension of the spring

make v the subject of the equation

v = √(ke²/m)................. Equation 2

From the question,

Given: k = 50 N/m, e = 2 m, m = 2.0 kg

Substitute these values into equation 2

v = √(50×2²/2)

v = √(50×2)

v = √(100)

v = 10 m/s

Answer: the basic unit of a chemical element.

Explanation:

An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across.

hope this helps

Answer:

true

Explanation:

In a chemical reaction, the atoms and molecules that interact with each other are called reactants. In a chemical reaction, the atoms and molecules produced by the reaction are called products. In a chemical reaction, only the atoms present in the reactants can end up in the products.

Answer:

the SI unir of enery is joule

Answer:

[tex] y_{t} = 253.94 m [/tex]

Explanation:

Para resolver este problema debemos contemplar dos tramos.

En el primer tramo, la fuerza aplicada impulsa al cuerpo a subir una altura dada debido a la aceleración que genera esa fuerza.

[tex] \Sigma F = ma [/tex]

[tex] F - P = ma [/tex]

[tex] F - mg = ma [/tex]

En donde:

F: es la fuerza aplicada = 60 N

P: es el peso del cuerpo = mg

m: es la masa del cuerpo = 4 kg

g: es la aceleración debido a la gravedad = 9.81 m/s²

a: es la aceleración

Entonces, la aceleración generada por la fuerza aplicada es:

[tex] a = \frac{F - mg}{m} = \frac{60 N - 4kg*9.81 m/s^{2}}{4 kg} = 5.19 m/s^{2} [/tex]

Ahora, debemos calcular la altura recorrida mientras el cuerpo está acelerado hacia arriba:

[tex] y_{{1}} = y_{0} + v_{0}t + \frac{1}{2}at^{2} [/tex]  

En donde:

[tex] y_{1}[/tex]: es la altura final del tramo 1 =?                                                                          [tex] y_{0}[/tex]: es la altura inicial = 0  

[tex] v_{0}[/tex]: es la velocidad inicial = 0 (parte del reposo)  

t: es el tiempo = 8 s

[tex] y_{1} = 0 + 0 + \frac{1}{2}5.19 m/s^{2}*(8 s)^{2} = 166.08 m [/tex]  

Por lo tanto, mientras el cuerpo está acelerado (durante los 8 s) recorre 166.08 metros.  

Ahora, en el segundo tramo el cuerpo sigue subiendo hasta alcanzar una altura máxima para luego comenzar a descender. Podemos usar la siguiente ecuación para calcular la altura recorrida.  

[tex] v_{f}^{2} = v_{0}^{2} - 2gy_{2} [/tex]  

En donde:    

[tex] v_{f}[/tex]: es la velocidad final = 0 (en la altura máxima)

[tex] v_{0}[/tex]: es la velocidad inicial

Primero debemos encontrar la velocidad inicial en el segundo tramo, que es igual a la velocidad final del primer tramo:

[tex] v_{f} = \sqrt{v_{0} + 2ay_{1}} = \sqrt{0 + 2*5.19 m/s^{2}*166.08 m} = 41.52 m/s [/tex]    

Entonces, la altura recorrida en el segundo tramo es:

[tex] y_{2} = \frac{v_{0}^{2} - v_{f}^{2}}{2g} = \frac{(41.52 m/s)^{2} - 0}{2*9.81 m/s^{2}} = 87.86 m [/tex]

Finalmente, la altura máxima es:

[tex]y_{t} = y_{1} + y_{2} = 166.08 m + 87.86 m = 253.94 m[/tex]

Espero que te sea de utilidad!

Answer:

This relationship is from Newtons Second Law of Motion

Newton's second law shows that there is a direct relationship between force and acceleration. The greater the force that is applied to an object of a given mass, the more the object will accelerate.

Its expressed as

F=ma

Tension = Mass * Gravity

Tension = 15 * 9.81 = 147.15

Answer: I believe the correct answer would be they join north pole to south pole. The direction of these lines always goes from the direction of north to south pole. These lines forms loops in order to favor the way which requires or has less resistance. Hope this helps.

Answer:

one watt power is defined as power produced when one joule of work is done in one second.

hope it helps

stay safe healthy and happy

d = 10 m

Explanation:

Work = force × distance

or

distance = work/force

= (240 J)/(24 N)

= 10 m

Answer: [tex]12.82\ m/s[/tex]

Explanation:

Given

Mass of car [tex]m=991\ kg[/tex]

Force applied [tex]F=31,770\ N[/tex]

time period [tex]t=0.4\ s[/tex]

Acceleration associated with car

[tex]\Rightarrow a=\dfrac{F}{m}\\\\\Rightarrow a=\dfrac{31770}{991}\\\\\Rightarrow a=32.05\ m/s^2[/tex]

Acceleration is the change in velocity w.r.t time

[tex]\Rightarrow a=\dfrac{\Delta v}{\Delta t}\\\\\Rightarrow 32.05=\dfrac{\Delta v}{0.4}\\\\\Rightarrow \Delta v=12.82\ m/s[/tex]

thus, the change in velocity is [tex]12.82\ m/s[/tex]

Answer:

approximately 35,786 km

Explanation:

A satellite in such an orbit is at an altitude of approximately 35,786 km (22,236 mi) above mean sea level. It maintains the same position relative to the Earth's surface.

Answer:

the answer is refraction, btw could u

say which grades question this is

Answer:

C.) The substance that gets dissolved

Explanation:

Because i am a wise man

Answer:

The information shows the masses after the compounds are balanced.

2MgO + 2Cl2 → 2MgCl2 + O2

85g + 156g → 188g + 53g

53gas total mass in reactant is equal to product.

A.

53g of O2, because all mass must be conserved.

Answer:

(iii) 300m

Explanation:

(i) The velocity of the cyclist is constant with time, the rate of the change of the velocity with the time is zero. So the acceleration of the object will be zero.

(ii) According to the graph we observe that the cyclist is moving with the same velocity all the time, therefore, the velocity of the cyclist is [tex]20m/s^{-1}[/tex]

(iii) Apply the formula: (speed = velocity x time)

s = vt

s = [tex]20m/s^{-1}[/tex] x 15s

s = 300m

Hope this helps :)

Answer:

think it's b

Explanation:

cuz

Answer:

Explained below.

Explanation:

Newton's first law of motion states that an object will continue in its present state of rest or continue with constant speed in a straight line except it is acted upon by an external force.

For every object in motion or at rest there is a force of friction that tries to resist its motion or prevent it from moving with constant velocity.

Now, to push it from rest you will need to apply a force large enough to overcome its static friction. Now, after that initial motion, smaller forces will have to be applied to overcome what is called sliding friction that prevents the crate from sliding which will affect the constant velocity.

Answer:

Resistance = 252.53 Ohms

Explanation:

Given the following data;

Charge = 0.125 C

Voltage = 5 V

Time = 6.3 seconds

To find the resistance;

First of all, we would determine the current flowing through the battery;

Quantity of charge, Q = current * time

0.125 = current * 6.3

Current = 0.125/6.3

Current = 0.0198 A

Next, we find the resistance;

Resistance = voltage/current

Resistance = 5/0.0198

Resistance = 252.53 Ohms

Answer:

hi

Explanation:

Answer:

The description as per the given scenario is described below throughout the segment.

Explanation:

Answer:

you calculate a specific type of run for example 100m and it takes 20 seconds to finish and calculate the time it takes them to finish

hope this helps

have a good day :)

Explanation:

You need th information about the time period she ran and the distance she covered in that time period to analyze her speed.

The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is a meter/second.

The generally considered unit for speed is a meter per second.

Your friend wants to join the school track team and has asked for your help to determine how fast she can run the data of her time and the length of the distance she covered in that period of time because the only way to know how fast she runs is to analyze her speed by using the distance and the time.

Thus , you need information about the time period she ran and the distance she covered in that time period to analyze her speed.

Learn more about speed from here, refer to the link;

brainly.com/question/7359669

#SPJ5

Answer:This could be in the form of using fewer energy services or using devices that require less energy.

Explanation:

The answer to the question is logic