A ship sends out a 1200 Hz sound wave, which has a wavelength of 1.2 m in the water. It reflects off the ocean floor and returns to the ship in a total time of 5 seconds. How deep is the ocean at this location?

4. which of the following would happen to the moon if gravity no longer affected it? A. the moon would continue to move on its orbital path B. the moon would stop moving altogether C. the moon would move in a spiral toward earth D.

A squirrel drops an acorn onto the head of an unsuspecting dog. The acorn falls 4.0m before it lands on the dog. We can ignore air resistance. How many seconds did the acorn fall?

A car starts from rest and moves around a circular track of radius 26.0 m. Its speed increases at the constant rate of 0.570 m/s2. (a) What is the magnitude of its net linear acceleration 12.

How do nuclear reactions illustrate conservation of energy and matter?

What is the main reason for using a data table for collecting data? If you put a question in the answer box or anything that isn't a answer in the answer box I will report you!

The universe is believed to have been form from a very dense fireball billions of years ago.

What does the slope of the line on this velocity versus time graph represent? A. positive deceleration B. zero acceleration C. positive acceleration D. negative acceleration

Which of the following objects has the greatest kinetic energy? a baseball flying through the air at 90 miles per hour a baseball flying through the air at 45 miles per hour a baseball flying through the air at 20 miles per hour a baseball sitting

Peter found an amazing fact in an amusement park when he tried to ride the Magic Mountain Superman. Powerful magnets accelerate a car and its riders from zero to 45 m/s in 7 seconds. Suppose the mass of the car and riders is 5,600 kg.

The formula s = 16t2 gives the distance an object falls due to gravity, where s is the distance in feet and t is the time in seconds. how many feet will the object fall in 6 seconds?