Answer:
the primary coil current produces a magnetic field, which changes as the current changes. the iron core increases the strength of the magnetic field. the changing magnetic field induces a changing potential difference (voltage) in the secondary coil.
Answer: friction reduces the speed during motion
Explanation:
The more the friction, the lesser the speed during motion
<span>sound waves are a type of wave sometimes called compression waves, vibrations with enough of an amplitude can compress and decompress the air adjacent to the object causing the waves to form.</span>
Responder:
- Volumen del bloque = 60cm³
- Densidad = 5g / cm³
Explicación:
Dada la dimensión del bloque
AB = 4 cm, BC = 2.5 cm y BF = 6 cm
Volumen del bloque = Largo × Ancho × Alto
Volumen del bloque = AB × BC × BF
Volumen del bloque = 4 × 2.5 × 6
Volumen del bloque = 60cm³
Dada la masa del bloque = 300 gramos
Densidad = Masa / Volumen
Densidad = 300g / 60cm³
Densidad = 5g / cm³
Algunos materiales que tienen una densidad de 5g / cm³ o cercanos son radio, germanio y europio con densidades de 5g / cm³, 5.3g / cm³ y 5.24g / cm³ respectivamente.
