A pendulum has a mass of 0.5kg and starts at a height of 0.3 m. If it is released from rest, how fast is it going when it reaches the lowest point of its path? Acceleration due to gravity is g=9.8m ./s^2

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

What is the speed of an object at a given moment?