What is a specific name for the rock formed when lava cools and hardens at earths surface

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction