Explanation:
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in
Answer:
Given that
P = RT/V + a/V²
We know that
H= U + PV
For T= Constant (ΔU=0)
ΔH= ΔU +Δ( PV)
ΔH= Δ( PV)
P = RT/V + a/V²
P V= RT + a/V
dH/dV = d(RT + a/V)/dV
dH/dV = - a/V²
So the expression of dH/dV
b)
In isothermal process
(ΔU=0)
Now by putting the all values
ΔH = 17.06 L.atm
Answer:
There is a force that has the same magnitude as that of the hammer applied on the astronaut and with direction away from the asteroid, movement is given by
F_hammer - F_Gravitation = m a
Explanation:
For this exercise we will propose its solution from Newton's third law, which states that every action has a reaction of equal magnitude, but felt different.
As it is in space, we must assume that it is not subject to the gravitational attraction of nearby bodies, except the asteroid that attracts it. When he extends his hand and hits the asteroid, he exerts a force on him, by Newton's third law he responds with a force of equal magnitude applied to the astronaut, therefore without the two they are not united they could separate if this force is greater than the force of universal attraction between the two.
In summary There is a force that has the same magnitude as that of the hammer applied on the astronaut and with direction away from the asteroid, movement is given by
F_hammer - F_Gravitation = m a
Depends on the mass of the projectile versus the object.
The force of gravity is dependent upon the mass of the object. Therefore if the mass of the projectile and the mass of the object are exactly the same than both objects will fall at the same rate and will collide. If the mass of the object is significantly larger than it will fall faster and the projectile will pass above it. The opposite is true if the mass of the object is less than the mass of the projectile, in which case the projectile will pass underneath.
Lastly, this analysis excludes the force of wind resistance on the projectile and the object. Under a complex model how the projectile travels through the air will have a separate impact that will alter its decent or rise outside of gravity. For example, if the projectile is spinning it could "cut" into the wind and cause accelerated drop. Think of a curve ball in baseball or a rising fastball.
