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Zina [86]
3 years ago
12

How does the electric potential energy change as the electron moves from i to f?

Physics
1 answer:
Flura [38]3 years ago
3 0

Answer: it increases

Explanation: .

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How can technology improve peoples chances of surviving a tornado?
BigorU [14]

Answer:

b

Explanation:

The warning would alert the people and give them time to prepare for the tornado. like getting food and going in bunkers

Brainliest awnser?

8 0
3 years ago
What automotive system keeps the vehicle's tires in contact with the road?        A. The steering system   B. The suspension sys
taurus [48]
The answer is D transmission
3 0
3 years ago
Read 2 more answers
Si aplicamos una fuerza constante de 30 N sobre un cuerpo de 25 Kg, este se mueve de tal manera que en 5 s adquiere la velocidad
Ganezh [65]

Answer:

<em>Si hay rozamiento y el valor de la fuerza de roce es 10 N</em>

Explanation:

<u>Fuerza Neta</u>

La fuerza neta sobre un cuerpo es la suma vectorial de todas las fuerzas actuantes sobre el mismo.

Si conocemos el módulo de la fuerza neta F y la masa m del cuerpo, aplicamos la segunda ley de Newton para relacionarlas con la aceleración a:

F=m.a

Tenemos los datos cinemáticos de la situación, según la cual el cuerpo adquiere una velocidad (desde el reposo) de 4 m/s en 5 s.

Utilizamos la fórmula:

v_f=v_o+a.t

Y despejamos la aceleración:

\displaystyle a=\frac{v_f-v_o}{t}

\displaystyle a=\frac{4-0}{5}

a=0.8 \ m/s^2

Podemos calcular la aceleración real que el cuerpo adquiere, producto de una fuerza efectiva igual a:

F_e=25\ Kg\cdot 0.8 \ m/s^2

F_e=20\ N

Si se está aplicando una fuerza de F_a= 30 N y solo 20 N producen movimiento, entonces se está perdiendo en rozamiento una fuerza:

F_r=F_a-F_e=30 - 20=10

F_r=10\ N

Si hay rozamiento y el valor de la fuerza de roce es 10 N

8 0
3 years ago
Which of the following is a compound machine
Ivahew [28]

The answer is c.

Hope this helps!!!!!!!!!!

8 0
4 years ago
Read 2 more answers
Two magnets are sliding towards each other. One of the magnets, which has a mass of 125 grams, is moving in the positive x-direc
olasank [31]

Answer:

0.45 m/s in the negative x-direction

Explanation:

From the law of conservation of momentum, the sum of initial momentum equals the sum of final momentum

Momentum, p=mv where m is the mass and v is the velocity

m_1v_1+m_2v_2=(m_1+m_2)v_c where v_c is the common velocity, v_1 and v_2 are velocities of magnet moving in positive x-direction and magnet moving in negative x-direction respectively, m_1 and m_2 are masses of magnet moving in positive x-direction and magnet moving in negative x-direction respectively.

Substituting 125 g for m_1 and 85 g for m_2, 7.33 m/s v_1, -11.9 m/s for v_1 then

125 g\times 7.33 m/s + (85 g\times -11.9)=(125 g+ 85 g)\times v_c

-95.25 g. m/s=210 g v_c

v_c=\frac {-95.25 g.m/s}{210 g}=-0.453571429 m/s&#10;\approx -0.45 m/s

Therefore, the velocity of single unit is 0.45 m/s in the negative x-direction

5 0
3 years ago
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