An object is launched with a velocity of 35 m/s at an angle of 20 degrees above the horizontal. How far from the launch point does the object land horizontally? (SHOW WORK)

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation