Answer:
Ann: 5.5 to 6.4 g; Beth: 5.95 to 6.04 g
Explanation:
Answer:
<h3>The answer is 3.0 m/s²</h3>
Explanation:
The acceleration of an object given it's velocity and time taken can be found by using the formula

where
a is the acceleration
v is the velocity
t is the time
From the question
v = 12 m/s
t = 4 s
We have

We have the final answer as
<h3>3.0 m/s²</h3>
Hope this helps you
It would have to have a magnet on the other side
Answer:
AB
Explanation:
Same speed. Shorter wavelengths.
Answer:
Ek1 = 900000 [J]
Ek1 = 400000 [J]
Explanation:
In order to solve this problem we must remember that kinetic energy is defined as the product of mass by velocity squared by a medium. Therefore using the following equation we have:

where:
m = mass = 500 [kg]
v1 = 60 [m/s]
So we have:
Ek1 = 0.5*500*(60^2)
Ek1 = 900000 [J]
and:
Ek2 = 0.5*500*(40^2)
Ek2 = 400000 [J]