C. ionic because it's a metal and non-metal
Answer:
-No
Explanation:
Given that
Mass of box = 100 kg
Coefficient of friction ,μ= 0.23
We know that friction force depends on the normal force acts on the box
Fr= μ N
When we pull the box then :
Normal force N= mg
Friction force Fr= μ mg
When we push the box :
Lets take pushing force = F
θ =Angle make by pushing force from the vertical line
Normal force
N = mg + F cosθ
Fr= μ ( mg + F cosθ )
The friction force is more when we push the box.That is why this is not easier to push the box.
Therefore answer is ---No
Example problem circuit with a pair of parallel resitiors in series with another resistors. Figure 2 solution. We start by simplifying the parallel l...
The correct answer to the question is : Air resistance.
EXPLANATION:
Before coming into any conclusion, first we have to understand the terminal velocity.
An object is said to be moving with terminal velocity if the net force acting on the object is zero i.e the body is non accelerating.
As per the question, the object is falling under gravity. The force of gravity acts in vertical downward direction.
Except gravity, the object is also under air resistance. It is the force which opposes the motion of the object, and acts in vertical upward direction.
If the air resistance becomes equal to force of gravity, then the net force acting on the object is zero . It is so because two forces act in opposite direction.
In case of liquids, the resistance force is called as viscosity.
Hence, the correct answer to the question is air resistance.
(4) a metal sphere with a charge of 1.0 × 10^−9 C <span>moved through a potential difference of 4.0 V would undergo the greatest change in electrical energy from the list. </span>
