The length, s, (in feet) of the skid mark left by an automobile traveling at r miles per hour can be approximated by the relation r=25s−−√. at the scene of an accident, police measured a skid mark of 361 feet. about how many miles per hour was the car traveling when the brakes were applied?

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity