Would it be better to collide head-on with an identical car traveling at the same speed or collide with a stationary brick wall?

The highest pitched sound that a human ear can detect is about 21 kHz. on the other hand dolphins can hear ultrasound with frequencies up to 280 kHz. what is the speed of sound in water if the wavelength of ultrasound with a frequency of 2.

What is the bonds of Chitin?

If three uncharged styrofoam balls are placed together and agitated so that one gains + 3 C of charge and another gains + 4 C of charge, how much charge must there be on the third one?

Which term refers to a saturated hydrocarbon? A alkali B alkene C alkyne D alkane

How does friction affect moving objects?

A person who has dissociative identity disorder: O A. cannot remember who he or she is. O B. has panic attacks when confronted. C. has two or more distinct personalities OD hears voices

Which force most likely created this mountain? compression gravity sheaning tension

What is the opposition of sublimation?

What is the voltage at the location of a 0.0001-coulomb charge that has an electric potential energy of 0.5 joules?

A basketball referee tosses the ball straight up for the starting tip-off. at what velocity (in m/s) must a basketball player leave the ground to rise 1.23 m above the floor in an attempt to get the ball?