Which of the folowing is true at the point where you reach the top of your jump on ur trampoline? a)the mechanical enerygy is zero b)the potential energy is at a maximum c)the kinetic enrgy and potential energy d)the potential energy is zero

How can one distinguish breccia from conglomerate? a. breccia contains angular clasts and conglomerate contains rounded clasts. b. breccia contains rounded clasts and conglomerate contains angular clasts. c. different minerals cement breccia than cement conglomerate. d. breccia contains sand and conglomerate contains silt.

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.

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied