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3 years ago

Different forces were applied to five balls, and each force was applied for the same amount of time. The data is in the table.

Physics

2 answers:

emmainna [20.7K]3 years ago

6 0

C. It doubles I hope this helps and good luck

Alja [10]3 years ago

6 0

The impulse provided to the ball is equal to the change in momentum of the ball.

According to Newton's second law, The rate of change of momentum is directly proportional to the force applied. Hence, the equation can be written as:

Δp = F × t

Δp = change in momentum = Impulse

F = Force

t = time for which the force is applied

Now. if the force is doubled and the time remains same.

F(new) = 2F

t = t

Δp (new) = 2F × t

Δp (new) = 2 Δp (old)

Hence, the impulse gets doubled

Option C is correct.

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3 years ago

Two speakers both emit sound of frequency 320 Hz, and are in phase. A receiver sits 2.3 m from one speaker, and 2.9 m from the o

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Answer:

Option B

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3 years ago

A vitamin called folic acid is very important for neural tube development, which is the development of the baby's

Anestetic [448]

Answer:

Explanation:

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3 years ago

Que fuerza será necesaria aplicar a un cuerpo de 20kg de masa para imprimirle una aceleración a=4m/s²

WARRIOR [948]

Answer:

La fuerza que será necesaria aplicar a un cuerpo de 20kg de masa para imprimirle una aceleración a=4m/s² es 80 N.

Explanation:

La segunda ley de Newton, llamada ley fundamental o principio fundamental de la dinámica, plantea que un cuerpo se acelera si se le aplica una fuerza.

De esta manera, esta ley establece que las aceleraciones que experimenta un cuerpo son proporcionales a las fuerzas que recibe. Dicho de otra forma, la aceleración de un cuerpo es proporcional a la fuerza neta que se le aplica. Cuanto mayor es la fuerza que se le aplica a un objeto con una masa dada, mayor será su aceleración.

La segunda Ley de Newton se expresa matemáticamente como:

F = m*a

Donde:

F es la fuerza neta. Se expresa en Newton (N)
m es la masa del cuerpo. Se expresa en kilogramos (Kg.).
a es la aceleración que adquiere el cuerpo. Se expresa en metros sobre segundo al cuadrado (m/s²).

En este caso:

m= 20 kg
a= 4 m/s²

Reemplazando:

F= 20 kg* 4 m/s²

Resolviendo:

F= 80 N

La fuerza que será necesaria aplicar a un cuerpo de 20kg de masa para imprimirle una aceleración a=4m/s² es 80 N.

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3 years ago

In a wire, when elongation is 4 cm energy stored is E. if it is stretched by 4 cm, then what amount of elastic potential energy

myrzilka [38]

<h2>Answer:</h2>

<h2>Explanation:</h2>

The elastic potential energy of an elastic material (e.g a spring, a wire), is the energy stored when the material is stretched or compressed. It is given by

U = $\frac{1}{2}kx^2$ --------------------(i)