Hi there!
We can use IMPULSE to solve.
Recall impulse:

Begin by calculating the impulse. Assuming up to be the + direction, and down to be the - direction.

Now, we can calculate force using this value:

<u>The weight experiences a net force of 2000N UPWARDS.</u>
The gibbous moon spends roughly a week waxing, from the First Quarter until the Full Moon. (This is the second week following a New Moon.)
Answer:
Velocity is a function of time and defined by both a magnitude and a direction. [1] Often in physics problems, you will need to calculate the initial velocity (speed and direction) at which an object in question began to travel. There are multiple equations that can be used to determine initial velocity. Using the information given in a problem, you can determine the proper equation to use and easily answer your question.
This is from a website btw.
Answer:
D. Opening the front door in winter to filter and clean warm ai
Explanation:
All of the following are examples of ways to improve energy efficiency of heating systems, except _______.
A. Closing off rooms that aren’t in use.
B. Frequently cleaning the furnace filter.
C. Fixing cracks in the walls and floor.
D. Opening the front door in winter to filter and clean warm air
for an heating systems it is better to keep the front door shut so that all the heat energy does not escape outside.
when heat energy is within a closed system ,it can still be utilized to keep the inhabitants warm otherwise there will be an exchange with the cold from winter fall outside the air, and the heating system's efficiency will be reduced