Answer:
Vo = 4.5 [V]
Explanation:
In order to calculate this Vo voltage, we must first calculate the current through the entire circuit. For this, we perform a sum of voltages equal to zero.
ΣV = 0
![-9 +6*I+2*I+3 =0\\-6+8*I=0\\I = 6/8\\I=0.75[amp]](https://tex.z-dn.net/?f=-9%20%2B6%2AI%2B2%2AI%2B3%20%3D0%5C%5C-6%2B8%2AI%3D0%5C%5CI%20%3D%206%2F8%5C%5CI%3D0.75%5Bamp%5D)
We again perform a sum of voltages equal to zero but this time we do not include the voltage source of 3V as well as the resistance of 2[ohm]. It is as if the circuit is open between the ports of Vo.
ΣV = 0
![V_{o}-9+(6*0.75) = 0\\\\V_{o} = 4.5 [V]](https://tex.z-dn.net/?f=V_%7Bo%7D-9%2B%286%2A0.75%29%20%3D%200%5C%5C%5C%5CV_%7Bo%7D%20%3D%204.5%20%5BV%5D)
Well, i think there are more than one answers for this question. What influence whether or not bricks slide down the bed of the dump trucks will depends on :
- The mass of the Bricks
- The angle of the Bed
- The coefficient of static friction between the bricks and the bed
- the coefficient of kinetic friction between the bricks and the bed
hope this helps
Answer:
32.46m/s
Explanation:
Hello,
To solve this exercise we must be clear that the ball moves with constant acceleration with the value of gravity = 9.81m / S ^ 2
A body that moves with constant acceleration means that it moves in "a uniformly accelerated motion", which means that if the velocity is plotted with respect to time we will find a line and its slope will be the value of the acceleration, it determines how much it changes the speed with respect to time.
When performing a mathematical demonstration, it is found that the equations that define this movement are the follow

Where
Vf = final speed
Vo = Initial speed
=7.3m/S
A = g=acceleration
=9.81m/s^2
X = displacement
=51m}
solving for Vf

the speed with the ball hits the ground is 32.46m/s