friction
length
height
The efficiency of the wedge is low because of friction. The amount of work it supplies is small compared to the amount of work output. The internal resistance of the wedge is incredibly high due to its heavy weight at the other end of the blade.
Answer:
is friction [B}
Explanation:
1. Orbit
2. Rotation
3.Revolution
Answer: 2nd option, Rotation
I hope this helps, and Stay Safe! :)
Answer:
rotation
Explanation:
............................
Answer:
Magnetic field strength, B = 5.95 Tesla
Explanation:
It is given that,
Length of wire, l = 0.36 m
It is moving perpendicularly through a magnetic field at a speed of, v = 0.21 m/s
Induced emf, E = 0.45 volts
The mathematical expression for induced emf is given by :
is the rate of change of magnetic flux,
B is magnetic field
So,
B = 5.95 Tesla
Hence, this is the required solution.
Answer:
Primero, sabemos que la densidad de el oro es:
Densidad = 19.3 g/cm^3
Sabemos que nuestro metal tiene una masa de 0.75 kg, y un volumen de 340 cm^3.
Primero deberíamos reescribir la masa en gramos, pues la densidad está escrita en gramos.
Sabemos que:
1 kg = 1000g
Entonces:
0.75 kg es 0.75 veces 1000g, esto nos da:
0.75kg = 0.75*(1000g) = 750g
Entonces tenemos:
masa = 750g
volumen = 340cm^3
Ahora debemos recordar que:
densidad = masa/volumen
Entonces la densidad de este metal es:
densidad = 750g/340cm^3 = 2.21 g/cm^3
Si la comparamos con la densidad del oro, podemos ver que esta es mayor.
Entonces podemos concluir que este metal no es oro.