A boat travels north across a river at a velocity of 22 meters/second with respect to the water. The river's velocity is 2.2 meters/second to the east. What is the resultant velocity of the boat, as measured from the land?

Which of the following is a property of an acid? Caustic Corrosive Decreases concentration of hydrogen ion Slippery feel

When two identical objects traveling at the same speed collide head-on, an observer standing in the earth reference frame sees both objects changing direction?

Gerald works on a futuristic space station servicing interstellar space ships. He observes a ship traveling directly away from the space station at a speed of 0.6c. The ship launches a shuttle towards the space station with a speed of 0.

Explain why you poured the ester into water before you identify the smell?

What is the term for collecting information about the physical world via the senses or a scientific instrument? A. Experiment B. Phenomenon C. Theory D. Observation

The distance between two consecutive crests is 2.5 meters. Which characteristics of the wave does this distance represent?

Who first landed on the moon?

What factors affect the speed of a wave? Check all that apply. the amplitude of the wave the energy of the wave the temperature of the medium the type of wave the type of medium

A sound level of 96 dB is how many times as intense as one of 90 dB?

Which type of waves are whale songs in an ocean?