Wassily Kandinsky invented abstract geometry :) have a good week
Answer:
0.6m/s²
Explanation:
Given parameters:
Initial velocity = 3m/s
Final velocity = 4.5m/s
Time taken = 2.4s
Unknown:
Average acceleration = ?
Solution:
To solve this problem, we use the expression:
Acceleration =
v is the final velocity
u is the initial velocity
t is the time taken
Acceleration =
= 0.6m/s²
Answer:
20 m/s
Explanation:
Look at the time on the x-axis. Go up from 2 seconds until you reach a point. From that point go to the left and read from the y-axis.
Answer:
The work function is 
Explanation:
From the question we are told that
The light energy is 
The stopping voltage is 
Generally work function is mathematically represented as

Where KE is the kinetic energy of the ejected electron and it is mathematically represented as

Where e is the charge on the electron
So

Thus

=> 
An object's momentum is the product of its mass and its velocity:
p = mv
p is its momentum, m is its mass, and v is its velocity.
Given values:
p = -80kg×m/s
m = 8kg
Plug in these values and solve for v:
-80 = 8v
v = -10m/s
Choice D