As a mass on a spring moves farther from the equilibrium position, how do the velocity, acceleration, and force change?

a the velocity decreases, the acceleration decreases, and the net force decreases.
b the velocity increases, the acceleration decreases, and the net force decreases.
c the velocity increases, the acceleration increases, and the net force decreases.
d the velocity decreases, the acceleration increases, and the net force increases.

Answer

d The velocity decreases, the acceleration increases, and the net force increases.

Explanation

When the spring is in equilibrium, the velocity is zero. So, no acceleration hence no force since force is a product of acceleration.

Force = Mass × acceleration

F=ma

For it to move from equilibrium position is require a force. When the force increases the acceleration must be increasing. The velocity will be decreasing since force a spring it requires a large force to produce a change in velocity.

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.