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Nutka1998 [239]

2 years ago

9

El carrito a control remoto de Juanito corre en una pista recta de 40 m de un extremo a otro en 90 segundos; luego de regreso so

bre la pista recorre 15 metros y se ubica en medio en 25 segundos, cual es la rapidez?
y cual es la velocidad?

1 answer:

PSYCHO15rus [73]2 years ago

8 0

Explanation:

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An electromagnetic wave has a frequency of 5.0 x 1014 Hz. What is the

andrezito [222]

Answer:

c

Explanation:

wavelength = speed of light/ frequency

= (3x 10^8 m/s)/(5.0 x 10^14 Hz)

= 6.0 x 10^-7 m

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What is the slope of (0,0)(4,200)

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Answer:

.02

Explanation:

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V=xf-xi/t solve for t

irina [24]

Answer:

$t=\frac{x_f-x_i}{v}$

Explanation:

Starting from the equation:

$v=\frac{x_f-x_i}{t}$

First of all, let's multiply by t on both sides:

$v\cdot t = \frac{x_f-x_i}{t}\cdot t \\vt = x_f - x_i$

And then, let's divide by v on both sides:

$\frac{vt}{v}=\frac{x_f-x_i}{v}\\t=\frac{x_f-x_i}{v}$

So, finally

$t=\frac{x_f-x_i}{v}$

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What is the velocity of the 100 kg cart at point b?

Gre4nikov [31]

I believe the answer is c

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2 years ago

How large is the acceleration of a 25 kg mass with a net force of 75 N applied horizontally to it?

Sveta_85 [38]

Answer:

Explanation:

F = ma

a = F/m

a = 75/25

a = 3 m/s²

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2 years ago