The net force acting on the piano is 500N
<h3>
When is two vectors Parallel ?</h3>
There will be parallel vectors when two vectors are moving in the same direction or opposite direction.
Given that a piano is hanging by a rope. Beside it are two vectors. The vector pointing upward is longer and labeled 
= 6,000 N. The second vector is downward and labeled 
= 5,500 N which will be negative because it will be acting downward.
Let the net force be 
. Then,
= +
= 6000 - 5500
= 500 N
Therefore, the net force acting on the piano is 500N
Learn more about Net Force here: brainly.com/question/11556949
#SPJ1
Answer: The correct option is D) 14
Explanation:
A transformer is a device used for stepping- up or stepping- down an alternating voltage. It has both primary and secondary windings. Energy is usually supplied through the primary coil and delivered through the secondary coil in a transformer. Using the equation:
Ns= lp
Np= Is
Where Ns--> number of turns in secondary coil
Np--> number of turns in primary coil
Is--> current flow in secondary coil
Ip--> current flow in primary coil.
Therefore Ns= Np Ip/Is
Substituting from the question
Ns= 100×2/14
Ns= 200/14
Ns = 14.28 which is approximately 14 turns in the secondary coil.
The quantity of charge carried by the plastic tube is -6.08 x 10^-10 C.
<h3>What are electrons?</h3>
Electrons are negatively charged particles that are found in the atom. The magnitude of charge carried by an electron is about -1.6 × 10^-19 C. We must note that the negative sign indicates that the electron is negatively charged.
The quantity of charge carried by the tube is obtained from;
q =ne
q = 3.8 x 10^9 × ( -1.6 × 10^-19 C)
q = -6.08 x 10^-10 C
Learn more about electrons:brainly.com/question/1255220
The formula for finding acceleration due to gravity in this case is g=w/m where g is acceleration due to gravity, w is weight and m is mass.g=18/2, g=9
Therefore the acceleration due to gravity on that planet is 9m/s2.
Answer:
the object has decreasing acceleration and increasing velocity
