an object of mass 800 gram hangs on a spring calculate the force exerted by the object of acceleration due to gravity is 10m/s square​

Erosion of the beach is normally a slow process. however, in certain situations, large chunks of shore may wash out to sea. what could cause this to happen?

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Explain what will happen if decomposers were apsent from a forest ecoysystem.