4. An empty truck with a mass of 2500 kg has an engine that will accelerate at a rate of 1.5 m/s2. What will be the acceleration when the truck has an additional load of 1500 kg ?
(Answer)

Asmall amount of a solid is added to water. the observation made after fifteen minutes is shown in the figure. which of these solids has been probably added to water? a) oil b) sand c) sugar d) wood chips

If you want to create an electrical current, which situation would produce a solution capable of this

Compare and contrast physical changes with chemical changes.