No, newton’s second law does not apply to a situation in which there is no net force.
<h3>
What is force?</h3>
A force is a push or pull upon an object which stops or tends to stop the object and move or tends to move an object.
No, newton’s second law apply to a situation in which there is no net force because force compels the object to move in the direction in which force is applied so we can conclude that force is compulsory to move an object.
Learn more about force here: brainly.com/question/12970081
Impulse describes the change of momentum. Since we don't know the momentum of the soccer ball before the hit, this question is hard to answer. If you assume the momentum of the ball before the hit was p = 0, then the change in momentum is just Δp = Impulse = mv.
The wind machine on an average operates for a time of about
.
Explanation:
The wind energy is the method of using the energy carried by the wind to generate the power. The wind energy is the considered as the conventional and clean source of energy.
The wind machines require the high power winds to rotate the blades of the windmill and produce power using the energy of the moving wind.
The winds blow at such high speed for a very small time during the day, the wind machine cannot be expected to work for a longer time during the whole day.
The wind energy can be obtained form a wind mill for a limited time unlike the other form of energy like thermal energy or even the solar energy. The thermal energy can be obtained at anytime due to burning of fuel whereas the solar energy can at least be obtained during the whole day time.
Thus, the wind machine on an average operates for a time of about
.
Learn More:
1. Acceleration of the box under friction brainly.com/question/7031524
2. The kinetic energy of an object depends on the brainly.com/question/137098
3. The approximate time taken to walk for 2000 miles brainly.com/question/3785992
Answer Details:
Grade: Middle School
Subject: Physics
Chapter: Energy
Keywords:
wind energy, conventional source, energy, thermal, solar, 3-4 hours, high speed, machine, time, operate.
Answer: D
8.403 m/s
Explanation:
Given that the women's world record for the 400-meter run around an oval track is held by Marita Koch, with a time of 47.60
seconds.
Her average velocity during this race will be
Velocity = distance/ time
Velocity = 400 / 47.6
Velocity = 8.403 m/s
Therefore, her average velocity during this race will be 8.403 m/s
D is therefore the correct answer.
Answer:
her displacement <em>s=337.5m</em>
Explanation:
check out the above attachment ☝️