A large region of gas and dust that may contain as many as one million solar masses is called a _____.
2 answers:
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Answer:
A) 3.79 m/s B) 1.33 m
Explanation:
A)
- Horizontal movement:
- Once in the air, no forces act on the froghopper, so it keeps moving with the same initial horizontal speed.
- This horizontal component, is the projection of the velocity vector on the horizontal direction (x-axis):
- The horizontal displacement can be simply calculated as follows:
- Vertical movement:
- As the vertical and horizontal are independent each other (due to they are perpendicular, so there is no projection of one movement on the other), in the vertical direction, all happens as if would be a body thrown upward with a given initial vertical velocity.
- This velocity can be found as the projection of the velocity vector on the vertical direction (y-axis):
- Once in the air, the gravity will cause that the froghopper be slow down, till it reaches to the maximum height, where it will come momentarily to an stop.
- In that moment, we can apply the following kinematic equation:
- where vfy = 0, g = -9.8m/s2, hmax = 52.7 cm= 0.527 m
- Replacing by the givens, we can solve for voy:
- From the equation (1), we can solve for the magnitude of the initial velocity, v₀:
B)
- With the value of the magnitude of the initial velocity, we can find the horizontal component vox, as follows:
- In order to know the horizontal distance travelled, we need to find the time that the insect was in the air.
- We can use the equation for the vertical displacement, replacing this value by 0, as follows:
- Replacing by the givens, and rearranging terms, we can solve for t:
- Finally, we find the horizontal displacement, as follows:
- The horizontal distance covered by the froghopper was 1.33 m.
Answer:De acuerdo con la ley de inducción electromagnética de Faraday, la tasa de cambio del flujo magnético vinculado con la bobina es directamente proporcional a la fem inducida en la bobina.
e = - d∅ / dt
Entonces, si el cambio de flujo es mayor, la fem inducida es mayor.
¡espero haber ayudado a tener un buen día! :)
Explanation:
According to the Faraday's law of electromagnetic induction, the rate of change of magnetic flux linked with the coil is directly proportional to the induced emf in the coil.
e = - d∅ / dt
So, if the flux change is more the induced emf is more.
i hope i helped have a good day! :)
