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missayers172
26.06.2021 •
Physics
Una persona en la tierra tiene una masa de 70[kg]. Calcule: a) Su fuerza peso en la tierra. b) Su fuerza peso en la luna (considere que la aceleración gravitatoria en la luna es de 1.62 [m/s²]) *
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Ответ:
a. El peso = 686 Newton
b. El peso = 113.4 Newton
Explanation:
Dados los siguientes datos;
Masa = 70 kg
Aceleración debida a la gravedad en la luna = 1,62 m/s² una.
a. Para encontrar la fuerza-peso en la Tierra;
Sabemos que la aceleración debida a la gravedad es igual a 9,8 m/s² en el planeta Tierra.
El peso se puede definir como la fuerza que actúa sobre un cuerpo o un objeto como resultado de la gravedad.
Matemáticamente, el peso de un objeto viene dado por la fórmula;
Dónde;
m es la masa del objeto.
g es la aceleración debida a la gravedad.
Substituting into the formula, we have;
El peso = 70 * 9.8
El peso = 686 Newton
b. To find weight on moon;
Weight = mass * acceleration due to gravity on moon
Weight = 70 * 1.62
Weight = 113.4 Newton
Ответ:
Two times
Explanation:
Let us remember the law of ohm, which tells us that the voltage of a circuit is equal to the product of the current by the resistance. Therefore
If we use numeric values we can check the answer given, if the voltage is equal to V=220 [V] and the original resistance is 10 [ohm], we find that the current is equal to:
Now if we take the current as I = 11 [amp] half of the original, then the resistance will be:
Now the resistance has a value of 20[ohm] this is two times the original value.