You are pulling an object up 1 m with a 5 m ramp. You pull with 20 N of force. How much does the object weigh (Newtons)? What is the mass (Kg)?

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

The law of reflection states that the angle of reflection is equal to the angle of