A cat can hear sound frequencies up to 70,000 hz. bats send and receive ultra-high-frequency squeaks up to 120,000 hz. which hears sound of shorter wavelengths: cats or bats?

In this first sentence from the passage, what does naught mean? A) nicely B) never C) naughty D) nothing

The acceleration of your bicycle as you ride it from your home to the store

In a certain collision we want to increase the force while keeping the magnitude of impulse the same. What can be done to achieve this objective?

Which of the following is the SI unit for volume? a. meter c. density b. liter d. grams

Which air pressure reading is likely an indicator of clear weather? a. 900 mb b. 950 mb c. 1000 mb d. 1050 mb

A canoeist on a lake throws a 0.145 kg baseball at 20.0 m/s to a friend in a different canoe. Each canoe with its contents has a mass of 120 kg, and is at rest initially.

You short-circuit a 9 volt battery by connecting a short wire from one end of the battery to the other end. if the current in the short circuit is measured to be 18 amperes, what is the internal resistance of the battery?

A student is trying to calculate the density of a ball. She already knows the mass, but she needs to determine the volume as well. Which of the following formulas can be used to calculate the volume of the ball?

Is there such a thing as real time weather radar? why not?

Luke and Carrie are driving down a straight section of the interstate at 70 mph in Luke's new convertible. Carrie is drinking a soda in the passenger seat.