Now desmond and cherie tackle a homework problem. two wave pulses travel on a string toward each other. the wave pulses can be described as y1 = 5 (kx − ωt)2 + 2 and y2 = −5 (kx + ωt − 6)2 + 2 , where k = 2 rad/m and ω = 5 rad/s. at what instant do the two cancel everywhere? (assume x is in meters and t is in seconds.)

When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?