Describe an example of acceleration and explain how velocity is changing.
2 answers:
You might be interested in
Answer:
A) ρ=
B) μ=
C) v=
D)e=
Explanation:
A)
The magnetic field can be find knowing the current is the charge per second
β=
β= 8.75x10^{19}e*s
Electron density
ρ=
B)
μ=
μ
C)
The drift speed using last information found
D)
To compared the random thermal motion and the current's drift speed
The initial velocity is
Explanation:
The motion of the ball is a projectile motion, therefore it consists of two independent motions:
- A uniform motion (constant velocity) along the horizontal direction
- A uniformly accelerated motion, with constant acceleration (acceleration of gravity) in the downward direction
In this problem, we just need to analyze the horizontal motion: the horizontal velocity is constant, therefore the horizontal distance travelled is given by
where
is the horizontal velocity
t is the time of flight
Here we have:
t = 0.45 s
x = 3.0 m
And so solving for , we find
And since the ball was initially projected horizontally, this is also the initial velocity.
Learn more about projectile motion:
#LearnwithBrainly