2. State a differences between mixture and compounds,
s. Mention Four substance that can dissolve in
water
4. Calculate the density of mass l6kg
and volume
of 100m

loom
of
s. Find the volume of substance it a
substance it a density
of
4kg/m and mass
Answ
of cookg.​

An ideal spring has a spring constant (force constant) of 2500 n/m, is stretched 4.0 cm, how much elastic potential energy does it possess? (a) 3j (b) 0.00j (c) 1j (d) 2j (e) 4j

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?