Answer:
Terminal voltage = 11.5 V
Power across load = 119.7 W
Power across internal resistance = 5.4 W
Power delivered by battery = 125.2 W
Explanation:
The current in the circuit is given by
where E is the emf of the battery, R us the load resistance and r is the internal resistance.
The terminal voltage is the potential difference across the load resistor.
V = I × R = 10.43 A × 1.1 Ω = 11.5 V
The power across any resistance is given by 
For the load resistor,
For the internal resistance,
The power delivered by the battery is
This could also be found by
The discrepancy in both answers is due to the approximations. The second answer is better.
Answer:
20 hz - 20khz is the audible sound wave for humans
Answer:
<h3>C. </h3>
Explanation:
PO NG SAGOT
<h2>#MARK BRAINLITS PO</h2>
TINUTULUNGAN KO PO KAYO
There are two forces acting on the teacher:
Force due to weight/gravity (Fg)
Force due to drag (Fd), which is a resistance opposite to the direction of motion. Think of an airplane flying through the sky: there will be air that tries to oppose the plane's direction of motion AKA air-resistance.
The force of gravity is always downward (the direction of gravity).
Like we said before, the force of drag is always opposite to the direction of motion. Since the teacher is falling down, the force of drag is exerted upward.
Look at the attached diagram. The teacher is the circle in the middle. The two arrows indicate the two forces and their directions.
Now let's look at numbers:
Fg = mg = 65kg * 9.81 m/s^2 = ??N
Fd = 320N
To find the "Net Force" we must add up all of the forces exerted on the teacher, BUT we have to take into account the direction of forces.
Let's define downward as our "positive" direction. Since downward is positive, that means our force due to gravity is positive = +Fg
But since our force due to drag is UPWARD that means our force is NEGATIVE = -Fd.
So our total net force is
Explanation:
the pressure is given by P=hpg
where h is height,p is density, g is 10m/s²
thus P= 0.05m•13.6x10³•10
P=6.8x10³ Hgmm
