Answer: c
Explanation: for #5 it can still be moving, just at a constant speed; therefore, it will be c.
I am thinking the answer might be 6N considering the second object would be twice as heavy.
Answer:
Conservation Tillage preparation of soil by digging, stirring, and overturning.
Pros: reducing soil erosion, reducing the costs of soil preparation and conserving soil moisture
Cons: you will always need herbicides for weed management, planting may be delayed because of wet or cool soil temperatures. You will always have problems with weed ,insects, and plant disease.
hope that helps you
Explanation:
Let, frictional force is f and normal force is N.
Balancing horizontal forces :

Also, balancing vertical forces, we get :

Therefore, the frictional force and normal force is -6.26 N and 142.6 N.
Explanation:
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this answer will help for you