The distance between an object and a screen is 200 cm. When a lens is placed in between the object and the screen, an image which is real and the same size as the object is formed on the screen. Which lense is used ?​

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created or , but it can be

What is the relationship between the direction of motion of the balloon and the wind currents

What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.