Peço ajuda por favor é urgente

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? round your answer to the nearest tenth. s how far will the football travel before it lands? round your answer to the nearest tenth. m

Why did thomson's results from experimenting with cathode rays cause a big change in specific thought about atoms ?