30. Why are scissors considered a first class lever? * A. They aren't. Scissors are a third class lever.
B. They aren't. Scissors are a second class lever.
C. The fulcrum is b
etween the input force (applied at the handles) and output
force (applied to the blades).
D. The input force (applied at the handles) is between the fulcrum and the
output force (applied to the blades).

Please help due tomorrow

According to newton's second law, when the same force is applied to two objects of different masses, a the object with greater mass will experience a great acceleration, and the object with less mass will experience an even greater acceleration, b. the object with greater mass will experience a smaller acceleration, and the object with less mass will experience a greater acceleration, c. the object with greater mass will experience a greater acceleration, and the object with less mass will experience a smaller acceleration, d. the object with greater mass will experience a small acceleration, and the object with less mass will experience an even smaller acceleration.

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Ways that industry and agriculture use physical properties to separate substances