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bixtya [17]
2 years ago
8

A 1,000 kg car is driving on a 15 m high bridge at 5 m/s. What is the kinetic energy of the car?

Physics
1 answer:
yanalaym [24]2 years ago
7 0

Answer:

KE=12,500J

Explanation:

The formula for kinetic energy is:

KE = \frac{1}{2}mv^2

We can plug in the given values into the equation:

KE = \frac{1}{2}*1000kg*(5m/s)^2

KE = 500kg*25m^2/s^2

KE=12,500J

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3 years ago
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Comparing X-ray to radio wave, which has a shorter wavelength?
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Answer:

x-ray

Explanation:

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6 0
3 years ago
Cuando una persona sube y baja una escalera, Cuanto vale su desplazamiento y cual es la medida de su trayectoria.
adoni [48]

Answer:

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Así, si comenzamos abajo, luego subimos la escalera, y luego bajamos, la posición final y la posición inicial serán la misma

por lo que el desplazamiento es igual a cero.

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Es decir, si entre el principio y el final de la escalera hay una distancia D.

La persona que sube y baja, recorre esta distancia dos veces.

Entonces cuando una persona sube y baja la escalera, la medida de su trayectoria será 2*D.

8 0
3 years ago
A certain kind of glass has an index of refraction of 1.640 for blue light of wavelength 440 nm and an index of 1.595 for red li
seraphim [82]

Answer: 18.27°

Explanation:

Given

Index of refraction of blue light, n(b) = 1.64

Wavelength of blue light, λ(b) = 440 nm

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Wavelength of red light, λ(r) = 670 nm

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Angle of refraction of red light is

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So that,

θ(r) = sin^-1 [(1 * sin 30) / 1.595]

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θ(r) = 18.27°

4 0
3 years ago
Urgent Important!!
Fynjy0 [20]

Answer:

B) they have been proven to cause drowsiness

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