Newton’s first law of motion states that an object at rest stays at rest, and an object in motion stays in motion, unless acted on by an unbalanced force. Which statements describe Newton’s first law?
Check all that apply.
B.C.E you welcome?
Answer:
The Answer is false
Explanation:
Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.
That would be newton's. You'll be studying or have studied about newton's laws of physics. Both will help you. Hope this helps!
the correct answer is B. 1.27
Mechanical advantage of a lever is simply the ratio of the effort arm to the load arm.Effort arm is the distance from the pivot to the point of application of force while load arm is the distance of the lord from the pivot.
therefore, in this question, the effort arm is 0.28m while the load arm is 0.22 m. MA is calculated as follows: MA=effort arm/load arm
=0.28m/0.22m=1.27