Answer:
0.71121 km/s
Explanation:
= Velocity of planet initially = 54 km/s
= Distance from star = 0.54 AU
= Final velocity of planet
= Final distance from star = 41 AU
As the angular momentum of the system is conserved

When the exoplanet is at its farthest distance from the star the speed is 0.71121 km/s.
AI has a charge of +3........................
Answer:
The mechanical advantage of the pulley is 1.
Explanation:
The mechanical advantage of the pulley is given as

Here, MA is represent for the mechanical advantage of the pulley, F is load for lift and f applied force.
Given F =21 N and f= 21 N.
Substitute the given values, we get

MA = 1.
Thus, the mechanical advantage of the pulley is 1.
Answer:
The answer to your question is: Chemical change
Explanation:
Chemical Change is a change where substances change their properties because new substances are obtain. This is the right answer.
Compressibility
is a property in which a substance is compressed but it continous being the being so this answer is wrong.
Malleability is a property in whcih substances are flattened into thin sheets but they don't change their properties. This answer is wrong.
Physical Change is a change in which a substance changes its physical state but the properties are the same than the original substance, this answer is wrong.