Which is usually associated with a slower reaction rate?
a. adding heat energy to the reactants
b. using a crushed solid in the reactants
c. refraining from using a catalyst in the reactants
d. using a highly concentrated solution of the reactants

What produces a record of seismic waves? richter scale seismogram barometer seismograph

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.

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter