If time is specified, the distance may be estimated in constant acceleration using the formula: X=(at2)/2 if the beginning velocity is 0. (A automobile begins from a stop...) As a result, X=(6*10*10)/2=600/2 = 300 m.
Answer:
B transferred.
Explanation:
The kinetic energy is simply transferred by transforming it into other forms of energy.
According to the law of conservation of energy "energy is neither created nor destroyed but transformed from one form to another".
- The moving baseball posses kinetic energy
- As it hits the bat, it is converted to mechanical and thermal energy.
- The bat warms up due to the transfer of the kinetic energy.
- The mechanical energy of the bat cause work to be done on it and it breaks apart.
- This ensures that the energy in this process is conserved.
Answer:
the correct answers B
It needs to be moving horizontally at a high speed, in order for the satellite to stay in orbit once it's released from the rocket.
Explanation:
In this exercise, let's look for the solution to the problem before reviewing the statements to find out which one is correct.
When the satellite is in orbit it must comply with Newton's law
F = m a
the force of the universal attractive force and the acceleration is centripetal
a = v² / r
we substitute
- G m M /r² = -m v² / r
v² = G M / r
v =
When analyzing this expression, the satellite is in a stable orbit because its centripetal acceleration creates a change in the direction of the velocity in such a way that it remains in an orbit
when reviewing the correct answers B
Answer:
C. Inhibit the flow of electrons
Explanation:
The metals that have free electrons are called conductors. The electrons are responsible for conducting currents in conductors since they are free to move around.
The motion of electrons is such that the former electron will occupy the hole produced by the latter electron where the latter moves forward in the conductor in one direction. It is similar to the snooker ball hits a ball and occupies its position where the other moves forward hitting the other and occupying its position.
The neutrons are fixed with the atom and they cannot move in the metallic conductors.
Insulators are materials that do not have free electrons. So, it does not account for such motion of electrons.
So, the insulators inhibit the flow of electrons since there are no free electrons to share the energy.