A dolphin emits ultrasound of 100kHz and uses the timings of reflection to determine the position of objects in the water. What is the wavelengths of this ultrasound? Note the speed of sound in water is 1480m/s.

What does stationary on a graph mean

Which of the following statements is not true regarding atmospheric pressure? A. You calculate absolute pressure by adding atmospheric pressure to gage pressure. B.

The Earth includes: a. A Pepsi inner core, a Coke outer core, and a mantle of Gatorade drinkers. b. A solid inner core, a liquid outer core, and a mantle with a liquid asthenosphere. c.

When the track is covered with the cloth, will the cart's braking distance become longer or shorter?

What is the definition of iodometry?

What uses electricity

How do invasive species spread? identify three methods. Why do invasive species pose such a threat?

If earth somehow expanded to a larger radius, with no change in mass, how would you're weight be affected? How would it be affected if earth shrunk?

Consider a helium balloon on a string tied to the seat of your stationary car. The windows are closed, so there is no air motion within the car. The car begins to accelerate forward. Which way will the balloon lean, forward or backward

The force of gravity acts upon meteors from the rocky asteroid belt between mars and Jupiter. Where is the force of gravity most likely to pull these meteors