A certain thermal energy is produced in the hot wire ammeter when AC Current of maximum intensity 14A passes through it. Then the DC Current intensity which produces the same thermal energy in the same wire equals approximately a) 7A
b) 10A
c) 14A
d) 20A​

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.

Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?