Answer:
0.58, 0.58, 0.58
Explanation:
Given vector, a = (7.9, 7.9, 7.9)
Unit Vector,
The magnitude
|a| = 13.68
The unit vector is (0.58, 0.58, 0.58)
If the liquid is denser than the coin, then the coin will eventually
come to rest floating, with part of it above the surface of the liquid.
That's exactly the situation if you drop the coin into mercury.
Density of copper . . . 8.96 gm/cm³
iron . . . 7.87
zinc . . . 7.13
silver . . 10.5
nickel . . .8.91
lead . . . 11.4
Density of mercury . . . 13.53 gm/cm³ !
Answer:
The current doubles
Explanation:
In a circuit, Ohm's law gives the relationship between voltage, current and resistance:
where
V is the voltage
R is the resistance
I is the current
In this problem,
V is held constant
R is halved:
Therefore, the new current is
So, the current doubles.
Answer:
d = 0m
v_avg = 2.5 m/s
Explanation:
A) The distance traveled by the swimmer was:
However, the displacement is zero because the final position of the swimmer is the same as the initial position.
displacement = 0m
The average velocity was:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
A) La distancia recorrida por el nadador fue:
Sin embargo, el desplazamiento es cero porque la posición final del nadador es la misma que la posición inicial.
desplazamiento = 0m
La velocidad promedio fue: