A car of mass 800kg collides head on with a truck of mass 5000kg travelling at 40m/s. the car is thrown on to bonnet of the truck which continues to move off together at a constant velocity for 15 seconds. Determine the common velocity

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig