The acceleration formula goes like this: a= (vf-vi)/t so it would be (13-4)/3 Thus the answer is 3m/s^2
They do have the same mass. However, “Heavy” implies we are concerned with how much force it takes to lift the object. In this case, we will find that the force needed to lift a kilo of feathers in air is slightly less than that needed to lift the kilo of lead.
Answer:
23.08 seconds
Explanation:
The computation of the time required is shown below
Relative Velocity,V is
= 780 - ( - 780)
= 1560 km/h
As it is moving in inverse or an opposite direction
And, the Distance, D = 10 km
So the time is
= 0.00641 hours
= 
= 23.08 seconds
By dividing the distance from the relative velocity we can get the time and the same is to be taken in the computation part
Answer:
75%
Explanation:
We'll begin by calculating the final volume of the gas. This can be obtained as follow:
Initial volume (V₁) = V
Initial temperature (T₁) = T
Initial pressure (P₁) = P
Final pressure (P₂) = 2P
Final temperature (T₂) = ½T
Final volume (V₂) =?
P₁V₁/T₁ = P₂V₂/T₂
PV/T = 2P × V₂ / ½T
Cross multiply
T × 2P × V₂ = PV × ½T
T × 2P × V₂ = PV × ½T
Divide both side by T × 2P
V₂ = (PV × ½T) / T × 2P
V₂ = ¼V
Next, we shall determine the absolute change in the volume of the gas. This can be obtained as follow:
Initial volume (V₁) = V
Final volume (V₂) = ¼V
Absolute change in volume |ΔV| =?
|ΔV| = |V₂ – V₁|
|ΔV| = |¼V – V|
|ΔV| = |0.25V – V|
|ΔV| = 0.75V
Finally, we shall determine percentage change in the volume of the gas. This can be obtained as follow:
Initial volume (V₁) = V
Absolute change in volume |ΔV| = 0.75V
Percentage change =?
Percentage change = |ΔV| / V × 100
Percentage change = 0.75V / V × 100
Percentage change = 0.75 × 100
Percentage change = 75%
Thus, the percentage change in the volume of the gas is 75%
dipole moment is defined as product of charge and distance between between.
so above is the dipole moment of the given charges
