Draw two cycles of a transverse wave with an amplitude or 4cm and a wavelength of 8cm . If the frequency of this wave is 10Hz, what is the speed?

it can be icreased by increasing pressure.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.