A.
Impulse is calculated through the equation,
I = mΔv
where I is impulse, m is mass and Δv is change is velocity. Substituting the known values,
I = (6 kg)(23 m/s - 6 m/s)
I = 102 kg m/s
<em>Answer: 102 kg m/s</em>
B.
Impulse in this item is calculated by multiplying the force by the time.
I = Force / time = (29 kg m/s²)(7 s) = 203 kg m/s
<em>Answer: 203 kg m/s</em>
C.
To answer this item, we have to multiply the mass and the velocity to get the impulse and divide the answer by the time to get the force.
F = m(v)/t
Substituting,
F = (0.1 kg)(-5.69 m/s)/0.64 s
F = -0.89 N
<em>Answer: -0.89 N</em>
Answer:
A) Zero newtos
Explanation:
To solve this exercise, let's use Newton's first and second law, in the first law it is established that every body is at rest or moving with constant speed if the external forces are zero. In the second law it is determined that the sum of the force is proportional to the acceleration of the body.
Let us apply our case, the body is at constant speed which implies that the sum of all external forces is zero. In addition, there is no friction, so we do not need a force that counteracts them.
Consequently, the force applied must be zero.
I believe that it is electric field
Answer: When chemical change occurs you will see like, the change of color or bubbles will form, the temperature will change, and maybe the odor too.
Answer:
microscopic light or Nano technology
