A boat is traveling at 7 m/a at a 90 degree angle to the current, which is moving at 1.3 m/s. What is the combined speed

An object is located 30.0 cm from a concave mirror. the focal length is 15.0 c,. what is the image distance? a. 30.0 cm b. -10 cm c. 10.0 cm d. -30.0 cm

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?

Energy flows from the producer level to the level. is called