If the surface is perfectly frictionless AND level ... no ups and downs ... then the puck never slows down or stops. There's nothing to make it do so. (Notice that "perfectly frictionless" means no air resistance either.)
Answer:7.93 m/s
Explanation:
Given
mass of ball
Mass of hanging ball
Length of string
Maximum angle turned
is the initial velocity of ball 1 and 0 is the initial velocity of ball 2
For Perfectly elastic final velocity of ball 1 and 2 is given by
where and are the velocity of 1 and 2 before collision
thus
By energy conservation on second ball we get
Kinetic energy=Potential Energy
thus
The force between two charged particles is an electrostatic force. The intensity of this force is given by the following formula:
Where q1 and q2 are charges r is the distance, and k_c is Coulomb's constant.
Coulomb's constant has the value of:
When we plug all the given values into the formula we get:
Negative sign means that force is attractive.
Answer:
By having specialized instruments onboard NASA spacecrat, they do this to detect how they behave
Explanation:
I really hope this is right have a stellar day.