Yes, it is.
Yes, it is possible to change the translational kinetic energy of an object without changing its rotational energy. Translational kinetic energy depends on an object's linear velocity, while rotational energy depends on its angular velocity. By adjusting the linear velocity without changing the angular velocity, you can change the object's translational kinetic energy without affecting its rotational energy.
there is no property that can be observed without somehow changing the identity of the object due to Heisenberg's Uncertainty Principle.
as you well know
Yes, tarnishing of silver objects is a physical property because it involves a change in the appearance of the silver due to the interaction with air and other substances, without changing the composition of the silver itself.
Solids can be stacked in heaps because they have a fixed shape and can support the weight of other objects without changing their form. Liquids and gases do not have a fixed shape and would flow and disperse if stacked on top of each other.
No. It is possible to change direction without changing speed. However, it is not possible to change direction without changing velocity.
A nonzero whole number is a quantity which does not equal zero and number without fractions.
The answer depends entirely on how the dimensions change. It is possible to change the dimensions without changing the perimeter. It is also possible to change the dimensions without changing the area. (And it is possible to change the area without changing the perimeter.)
because it is in equilibrium
It is very possible. It is actually one of the brightest objects in the night sky.
It isn't possible
Pointy objects such as needles??
You can multiply any number (including zero) by one without changing it. Similarly, you can raise any number (once again, including zero) to power one and it won't change.
Yes, it is possible to change the translational kinetic energy of an object without changing its rotational energy. Translational kinetic energy depends on an object's linear velocity, while rotational energy depends on its angular velocity. By adjusting the linear velocity without changing the angular velocity, you can change the object's translational kinetic energy without affecting its rotational energy.
Yes, all objects have physical properties. Physical properties are characteristics that can be observed or measured without changing the composition of the object, such as color, shape, size, density, and texture.
No. However it is possible in a movie :) Some people may pretend that they can do this e.g. by blowing the object. However, it is not possible
A normal mirror is typically referred to as a flat mirror, which reflects light rays without distorting the image or changing the size of objects.