Answer: 0.56 m/s
Explanation:
hello, there is 25° inclination angle for the chute in the drawing. Thankfully, I know this problem. The conservation of momentum.
so there are X and Y components for the momentum in this problem. The Y component is not conserved as when the coal gets in the cart, the normal force exerted by the surface reduces it to 0.
Now, the X component is definitely conserved here.
so you have the momentum of the cart which is 440*0.5 added to the momentum of the chunk which is 150*0.8*cos(25°), that is the momentum before the coupling between the objects. Afterwards both objects will have the same velocity, so we write the equation like this:
Answer
The current is 0.83 amps .
Option (C) is correct .
Explanation :
Formula for parallel resistors
As given
A combined circuit has two resistors in parallel (10.0 ohms and 14.0 ohms) .
Putting all the values in the above
L.C.M of (10,14) = 70
As given
Another resistors in the series is 5.0 ohms .
Formula
Now by using the ohms law .
Where V is voltage , R is resistance and I is current .
As given
The power source is 9.0 volts .
V = 9 volts
Putting values in ohms law
I = 0.83 amps (Approx)
Therefore the current is 0.83 amps .
Option (C) is correct .
The process is denitrification
1) in the opposite direction always
2) drag force is the force that acts in the opposite direction of the applied force (air resistance if a drag force for example)
3) frictions forces between the sole and the ground as the owner walks
4) chalk would glide very easily, so a creaking sound could never be produced, but also one could not write anything on the board!
5) I apologize for my lack of familiarity with the kind of sport but the probable answer is to raise the friction of their hands in order to decrease slipping and get a tighter, more firm grip