The power P is defined as the energy E per unit of time t:
In our problem, the power is P=25 W and the total time is t=8.0h, so we can calculate the total energy used during this time:
The energy costs 8€ per each kwh, so we can write the following proportion:
where x is the price corresponding to 0.2 kWh. Solving the proportion we find x:
€
This type of listening response is called back-channel signal. This allows the speaker to know that the listener is attentive or willing to engage a conversation between them. It is shown through short utterances, facial expressions, head nods and others.
Answer:
F=ma is the relationship where, F is force, m is mass and a is acceleration.
Newton's second law states that the unbalanced force applied to the object accelerates the object which is directly proportional to the force and inversely to the mass.
If we apply force to a toy car then It will accelerate.
This is how Newton's second law of motion is verified.
PART A)
Equivalent resistance in parallel is given as
now we have
PART B)
since potential difference across all resistance will remain same as all are in parallel
so here we can use ohm's law
for 4 ohm resistance we have
PART C)
since potential difference across all resistance will remain same as all are in parallel
so here we can use ohm's law
for 8 ohm resistance we have
Answer:
Explanation:
Las condiciones del problema requieren el cálculo de la rapidez inicial de los guijarros. Se sabe que el componente vertical de la rapidez final es cero. Por tanto, el tiempo se determina a continuación: (The conditions of this problems require the calculation of the initial speed of the peebles. It is known that vertical component of the final speed is zero. Therefore, the time is determined herein:).
Además, se determina el componente horizontal de la rapidez inicial (Likewise, the horizontal component of the initial speed is determined):
El guijarro tiene una rapidez de cuando golpea la ventana (The peeble has a speed of when it hits the window).
