A 2 kg object is elevated to 5 m above the ground. This object is now dropped and falls to a height of 2m above the ground. What is the objects total energy now?
Please help me it’s a final question

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.