Answer:
Kinematics of the parabolic movement
To solve the problem we will apply the kinematic equations of linear motion, which are an essential part in the characterization of parabolic motion. In this case we require the definition of acceleration described mathematically as,
a
=
v
f
−
v
i
t
Here,
v
f
=
Final Velocity
v
i
=
Initial Velocity
t
=
Time
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
According to the information provided we have to
{eq}\text{Initial Velocity} = v_i = 4.0\text{ m/s}\\ \text{Initial Velocity} = v_f = 0.80\text{
Answer:
3. the mass of the atom is concentrated in a very small area.
Explanation:
As the Rutherford experiment has shown that majority of particles has passed the foil with slightest deviations. It shows that the most of the part of atom is empty which doesn't effect the deviation of alpha particles. Few particles are deflected at significant angels shows that there must be a mass occupying the smaller area of atom which is later on called as nucleus.
Answer:
The kinetic energy of the flywheel is 5000kJ.
Explanation:
We have that the moment of inertia of a solid and uniform cylinder is equal to:
Where m is the mass of the cylinder and R its radius.
Next, the rotational kinetic energy of an object rotating about an axis is given by:
Where ω is the angular velocity. From these two equations, we can derive that:
Plugging the given values in this equation, we obtain:
In words, the kinetic energy of the flywheel is 5000kJ.
The most basic and perhaps powerful example is the fin-tailed fish, whose powerful tail is crucial for mobility, agility, and speed underwater. These adaptations have been underway for millions of years.
