The compass magnet aligns itself with the earths magnetic field.
This would be most representative of Newton’s first law of motion, an object will continuously move in a straight line at constant velocity until a force is applied on to the object.
Answer:
Explanation:
Density of an object is defined as the mass occupied per unit volume. “Density” is represented by “ρ”. Mathematically, where, “m" mass of an object and "v" is volume of an object.
Given that,
Step: 1
To find the mass of the copper:
Mass of the copper is 268.8 kg.
To balance the weight of the copper 268.8 kg = weight of the iron the volume required is
Step: 2
Answer:
Can enter or leave the system matter and energy. (The correct option is D)
Explanation:
Open system is defined as the system where exchange of matter, and energy occurs with its surrounding, presenting breaking down, and build up of its materials, and import, export of components.
Open system transfer the material into, and out of the system boundary, it contains an external interaction. A good example of open system is living things they actively connect with its environment, in results it shows changes in both the environment, and the living things.
So, the correct option is D.